| 15Five 15five.com | HR Tech | SMS communications | USA |
| 7taps 7taps.com | EdTech | SMS notifications for course reminders and updates | United States |
| ACA Group acaglobal.com | Compliance Technology | Email retention | United States of America |
| Accelevents accelevents.com | Event Management | SMS Delivery Provider | USA |
| Acoustic acoustic.com | Marketing | Aggregator for Mobile Messaging in all territories | United States |
| Actionable.co actionable.co | Behavior Change Technology | SMS Message Delivery | USA |
| ActiveCampaign activecampaign.com | Marketing | SMS Delivery Service | United States |
| Ada ada.cx | AI/ML | Two-Factor Authentication, Telephone calls, call recording, messaging processing and distribution for the SMS, WhatsApp and Facebook Messenger channels | USA |
| Aderant aderant.com | Legal Tech | SendGrid: outgoing email automation and notifications | USA |
| Aerofiler aerofiler.com | HR Tech | Communications platform used to send emails | United States |
| AgentVoice agentvoice.com | AI/Voice Automation | SMS / voice notifications / communications | Global |
| Aircall aircall.io | Cloud Infrastructure, AI/ML, Communications | Voice transmission services. Twilio provides services that allow switching calls between the PSTN and VoIP environment. | USA |
| Airslate airslate.com | Business Automation | Phone Calls and Text Messages Communication | United States |
| Airtable airtable.com | Productivity | Two-factor authentication | USA |
| Alation alation.com | Data Governance | Send emails about the services | United States |
| AllClients allclients.com | CRM Solutions | Telephony Services | USA |
| Allego allego.com | Revenue Enablement | Optional Telephony services | USA, Ireland |
| altaFlow altaflow.com | Document Automation | Phone Calls and Text Messages Communication | United States |
| Altvia altvia.com | Private Equity | Texting of Share Secure Two-Factor Authentication Codes | USA |
| Anthropic anthropic.com | AI/ML | Analytics, email/SMS communications | United States |
| Anyroad anyroad.com | Experiential Marketing | Communication APIs | United States |
| Apica apica.io | Observability/Cybersecurity | Integration for alerting | USA |
| Apideck Compliance Center compliance.apideck.com | DevOps | Analytics | USA |
| Apollo.io apollo.io | Sales Enablement | Direct dialer provider. | United States |
| AppDirect appdirect.com | Cloud Infrastructure | Support and authentication services | USA |
| Aptible aptible.com | DevOps, HealthTech | Communication | United States |
| Apttus apttus.com | Sales Technology | Communication Functions | United States |
| Arbol getarbol.com | AI/ML | Voice calls, SMS messaging, phone number provisioning | United States |
| Arist arist.co | AI/ML, HR Tech | Routing and transmission of messages, where SMS or WhatsApp delivery methods enabled. | United States |
| Arta arta.io | E-commerce | SMS notification provider | United States |
| Ashby ashbyhq.com | HR Tech | Notifications | USA |
| Aspose aspose.com | Software Development | Telephony Provider | United States |
| AthenaHQ athenahq.ai | AI Search Optimization | Communication APIs | USA |
| Athennian athennian.com | Legal Tech | SMS/Voice Provider | Canada or United States |
| Ativion Data Processors ativion.com | EdTech | Screen broadcast and real-time communication services | Various |
| Atlas khoros.com | Community Management | Provides programmable communication products and services, primarily in the form of APIs | USA |
| Atlassian atlassian.com | Productivity, Software Development, DevOps | Communications technology provider for product notifications | USA |
| Atlassian opsgenie.com | DevOps, IT Service Management | Communications technology provider for product notifications | USA |
| Auditboard auditboard.com | GRC (Governance, Risk, and Compliance) | SMS multi-factor authentication provider | US |
| AuditBoard soxhub-site.netlify.app | Cloud Infrastructure | SMS multi-factor authentication provider | US |
| Auditoria auditoria.ai | Fintech | Messaging infrastructure services | USA |
| Auvik auvik.com | Network Management | Communication services | United States |
| Avaamo avaamo.com | AI/ML | A telephony infrastructure web service that allows Avaamo to use standard web languages to integrate phone calls, text messages and IP voice communications into their web, mobile and traditional phone applications. | USA |
| Avoca avoca.ai | AI/ML, Service Automation | managed phone numbers for call servicing, SMS / MMS, and other telephony-related services. | Twilio |
| Backblaze backblaze.com | Cloud Infrastructure | A service used by Backblaze as an SMS provider for EU customer verification. | San Francisco, California, USA |
| Barracuda barracuda.com | Cybersecurity | Security Awareness Training | US |
| Base base.ai | AI/Customer Engagement | Email Delivery Service | USA |
| Base base.ai | AI/Customer Engagement | Email delivery services | USA |
| Basecamp basecamp.com | Productivity | SMS and Messaging Services | USA |
| Beekeeper beekeeper.io | HR Tech | SMS services | United States |
| BetterCloud tricent.com | SaaS Management | Sends application texts/SMS for customer configured alerts. Sends application emails for customer configured alerts. | San Francisco, CA, USA |
| BetterCloud bettercloud.com | SaaS Management | Sends application texts/SMS for customer configured alerts. Sends application emails for customer configured alerts. | San Francisco, CA, USA |
| Birdeye birdeye.com | Marketing | Text, Call, Video | United States |
| Bitrise bitrise.io | Mobile DevOps | Communication services | USA |
| Blackbaud blackbaud.com | HealthTech, EdTech, Nonprofit Tech | All Blackbaud Products, Blackbaud internal operations | United States |
| Black Box Intelligence blackboxintelligence.com | FoodTech | MFA | USA |
| Blackline blackline.com | Fintech | Providing SMS and email notifications | USA |
| Bland bland.com | AI/ML, Voice AI, Customer Service Automation | Customer communication services | United States |
| Bland bland.ai | AI/ML | Customer communication services | United States |
| Blitzz blitzz.co | AI/Remote Support | Real-time communication provider. Powers WebRTC video, SMS, and WhatsApp messaging within the Blitzz application. | United States |
| Bloomreach bloomreach.com | Marketing | SMS, Emailing | USA |
| BoldSign boldsign.com | E-signature | Sending text messages and phone calls on behalf of the SaaS provider | United States |
| Botdoc botdoc.io | Cybersecurity | Service used to send text messages to users. | United States |
| Bridgit gobridgit.com | Construction Technology | SMS Notifications | US |
| BrioHR briohr.com | HR Tech | Communications services | Global |
| Buildinglink buildinglink.io | Property Management | Voice and text messaging services. | U.S.A. |
| Bullhorn bullhorn.com | HR Tech | SMS services | United States |
| By Sprinto avoma.com | AI/ML | Cloud Providers | United States of America |
| By Sprinto docuseal.com | E-signature/DocuSign Alternative | Customer Service | United States of America |
| Calendly calendly.com | Productivity | SMS provider and domain-based message authentication, reporting and conformance | USA |
| CallTrackingMetrics calltrackingmetrics.com | Marketing Analytics | Transmittal to or from our application from or to the publicly-switched telephone network (PSTN) or other specified origination and termination points. | USA |
| Caspio caspio.com | Low-Code Development | SMS communication services | United States |
| Catonetworks catonetworks.com | Cybersecurity | SMS provider for Multi-Factor Authentication. | United States |
| ChatSupportBot chatsupportbot.com | AI Customer Support | SMS and voice communication | United States |
| Checkr checkr.com | HR Tech | Customer Communication | United States |
| ChurchSuite churchsuite.com | Church Management Software | SMS messaging | United States |
| Cialfo cialfo.co | EdTech | SMS notification provider | United States |
| Ciphr ciphr.com | HR Tech | Communications Delivery platform (e.g. SMS) | EEA |
| Classet classet.org | HR Tech | Stores communication data, including call and message metadata, and logs. | Unknown |
| Clayhr clayhr.com | HR Tech | Communications technology provider | US |
| Cleo hicleo.com | HealthTech | External communication | United States |
| Clever clever.com | EdTech | MFA service via SMS and voice calls | United States |
| ClickUp clickup.com | Productivity / Project Management / AI | Two-factor authentication codes | USA |
| Cloverleaf cloverleaf.me | HR Tech | Segment- Customer data management to ensure consistent data processing for other sub-processors; Sendgrid – email delivery | Not specified |
| Coda coda.io | Productivity | Platform provider for cloud communications | USA |
| Commbox commbox.io | AI Customer Engagement | Voice chat services | USA, EU |
| Community News zuora.com | Fintech | Communication services | USA |
| Concord concord.tech | Privacy Compliance, Data Privacy | Used to support phone calling and SMS functionality. | United States |
| Confluent confluent.io | Data Streaming | Communication services | United States |
| Conga conga.com | Document Automation, CLM (Contract Lifecycle Management) | Communication Functions | United States |
| Connecteam connecteam.com | HR Tech | Login verification and text messages provider | United States |
| Contractbook contractbook.com | Contract Management Software | SMS service that Contractbook utilises to send verification and signature codes. | US |
| Contractbook contractbook.co | Legal Tech | SMS service that Contractbook utilises to send verification and signature codes. | US |
| Conversica conversica.com | AI/ML | SMS (Text Message) services. | USA |
| Convertr convertr.io | Data Management | Data provider - SMS and Email validation services | EU, US |
| Credentially credentially.io | HealthTech | SMS notifications | USA |
| Crescendo crescendo.ai | AI/Customer Experience | Telephony: voicebot and inbound telephony | United States |
| Cresta cresta.com | AI/ML, Customer Experience | CPaaS Provider | USA |
| CRM Messaging crm-messaging.cloud | Communication/CRM Software | SMS & voice messaging delivery, number management | USA, EU, APAC |
| Culture Amp cultureamp.com | HR Tech | Cloud-based communication platform for sending automated messages and notifications. | USA |
| Customer.io customer.io | Marketing | Customer Communications | USA |
| Customer Service Support and In App Ticketing System aihelp.net | Customer Support Technology | Allows Customers to communicate with their End Users via Voice and SMS. | United States |
| CyberArk venafi.com | Cybersecurity | Provision of one-time codes via SMS & telephone, account management via email through Twilio SendGrid | United States |
| CyberArk cyberark.com | Cybersecurity | Provision of one-time codes via SMS & telephone; Twilio SendGrid for account management via email | United States |
| Cyware cyware.com | Cybersecurity | Customer Communications | United States |
| Daily.co daily.co | WebRTC, AI | Network traversal | USA |
| Databricks databricks.com | Data Analytics and AI | Provide customer communications, including in-product messaging and email. | United States |
| Datadog datadoghq.com | Cloud Infrastructure | Communication services | United States |
| Dataminr dataminr.com | Cybersecurity | Communications platform | — |
| DataShuttle datashuttle.io | DevOps | SMS | USA |
| Datenschutz-praxis datenschutz-praxis.de | Legal Tech | Communication services | USA |
| Dealroom dealroom.net | Fintech | Data analytics distribution service | United States |
| Decagon decagon.ai | AI/ML, Customer Engagement | Telecommunications | USA, EU |
| Delighted delighted.com | Customer Experience Management | Enables users to send surveys via SMS. | USA |
| Descope descope.com | Identity and Access Management (IAM) | Customer Engagement Platform | US, EU |
| Deskpro deskpro.com | Help Desk Software/AI | VoIP Platform | Global |
| DigitalOcean digitalocean.com | Cloud Infrastructure | Security services | USA (CA) |
| DigitalOcean digitalocean.com | Cloud Infrastructure | Security services | USA (CA) |
| Diligent godiligent.ai | Fintech | Messaging services | USA |
| Dimedove dimedove.com | AI/ML, Lead Qualification, Insurance Technology | Programmable communication services, SMS, voice, and phone number management. | USA |
| Docebo docebo.com | EdTech | Communication services | USA |
| Domino Data Lab dominodatalab.com | AI/ML | Communication services | USA |
| Double doublehq.com | Fintech | Two-factor authentication codes | US |
| DPD (UK) dpd.co.uk | Logistics | Parcel Notifications | EEA |
| DroneDeploy dronedeploy.com | Construction Tech, AI/ML | Cloud-based product support services; email distribution (SendGrid) | United States |
| Duome duome.co | Workplace Management / Hybrid Work Solutions | Text/Video/Voice messaging service | Not specified |
| Easyredir easyredir.com | Marketing | Product analytics | United States |
| Egress egress.com | Cybersecurity | Provides mobile SMS messages for multi-factor authentication | Varies as determined by User |
| Einride einride.tech | Transportation | Third-party service provider of customer support tools | USA |
| Elementor elementor.com | Web Development | Customer Service | USA |
| Emburse emburse.com | Fintech | Service to send communications via email, SMS regarding the services, using its web service APIs | USA |
| Emissary emissary.ai | HR Tech | Messaging | United States |
| Employ Inc. employinc.com | HR Tech | Messaging & Notifications | USA |
| Employ Inc. employinc.com | HR Tech | Messaging & Notifications | USA |
| Envoy envoy.com | Workplace Management | Transactional notifications | San Francisco, CA, USA |
| ePlatform eplatform.co | EdTech | Used as a communication service which allows interaction and communications between customers and ePlatform | USA |
| Espocrm espocrm.com | CRM Software | Voice and text messaging and other communication services. | US |
| Ethn ethn.io | HR Tech | Scheduling text reminders & calls | United States |
| Euphoric.ai euphoric.ai | — | Cloud communications platform | United States |
| Eventbuilder eventbuilder.rocks | Event Management, SaaS | Communications Technology Provider | United States |
| EventX eventx.io | Event Management | SMS | United States of America |
| Experiencequalified experiencequalified.com | AI Sales Development, Marketing Automation | Cloud Infrastructure | CA, US |
| Expo expo.dev | DevOps | Sending SMS messages to customers | USA |
| Fal fal.ai | Generative AI | Marketing Email/SMS Communications | United States |
| Feather featherhq.com | AI/ML | Telephony services and voice calling | United States |
| FICO fico.com | Fintech | Application to person messaging, voice services, and information relating to phone numbers required for CCS | United States |
| Figma figma.com | Design Software | Identity management | United States |
| Filevine filevine.com | Legal Tech | Texting provider | San Francisco, California, 94105 |
| Finosu finosu.com | Fintech | Communication services | United States |
| Firetail firetail.io | AI Security | Telephony and email communications | USA |
| Firetail firetail.ai | Cybersecurity | Telephony and email communications | USA |
| Firstup firstup.io | DevOps | Provider of SMS Gateway | United States |
| Flashpoint.AI flashpoint.ai | Market Research | SMS, email, and communication services | United States |
| Flatterfiles flatterfiles.com | Cloud Infrastructure | Text messaging service | United States |
| Flock Safety flocksafety.com | Public Safety Technology | Communication services | USA |
| Floynk floynk.com | E-commerce Management | Two-factor authentication and notifications | Ireland (EU region) |
| Forethought forethought.ai | AI/Customer Support | Voice Channel | United States |
| Fresha fresha.com | E-commerce | Cloud-based SMS notification services | United States |
| Freshworks freshworks.com | Customer Experience, AI/ML | Provides a platform to programmatically initiate and receive calls and SMS through Freshcaller. | US |
| Frontegg frontegg.com | Cybersecurity | Communications technology provider (SMS and email) | US |
| FullContact fullcontact.com | Analytics | Communication services for messaging and alerts | United States |
| Genesys genesys.com | Customer Experience (CX), AI | SMS/MMS messaging. | USA |
| Getbraincloud getbraincloud.com | Gaming, Backend-as-a-Service | 2FA and SMS Alerts | San Francisco, CA, USA |
| Getrecharge getrecharge.com | Fintech | External communications, including SendGrid services | United States of America |
| GetWhy getwhy.io | AI & Consumer Insights | Video and audio recording (Moderated interviews) | USA |
| Git git.law | Legal Tech | SMS notification provider for 2 Factor Authentication | United States |
| GitBook gitbook.com | DevOps | Communication services | USA |
| Glean Technologies glean.com | AI/ML, Productivity | Communication Services | United States |
| GoDaddy PH godaddy.com | Web Hosting & Domain Registration | SSL Certificates. | United States of America |
| Gong gong.io | Sales Enablement | VOIP and text message notifications | USA, EU |
| Granola granola.ai | AI/Machine Learning | Engineering | United States |
| Greenhouse greenhouse.com | HR Tech | Two-factor authentication and email delivery system | United States |
| Greenlight Health Data Solutions, Inc. greenlighthealth.com | HealthTech | Mobile Messaging | U.S.A. |
| Growthspace growthspace.com | EdTech | User email addresses, data integration details, and metadata required for ETL operations. | AWS (US) |
| HackerOne hackerone.com | Cybersecurity | SMS Notification | United States |
| HappyRobot happyrobot.ai | AI/ML | Web voice, messaging and phone numbers. | USA |
| Harperjames harperjames.co.uk | Legal Tech | Communication platform for messaging and voice | United States |
| Harvey harvey.ai | Legal Tech, AI Solutions | Email Harvey (receiving emails from @harvey with Customer Data and Content) | USA, European Union |
| Healthjoy healthjoy.com | HealthTech | Multi Factor Authentication, and Message Delivery | United States |
| Hellomongoose hellomongoose.com | EdTech | SMS Gateway Provider, text message processing | United States Only |
| HelloSign hellosign.com | Cloud Infrastructure | Mobile Messaging | United States |
| Help Scout helpscout.net | Customer Support Software | Two-factor authentication | USA |
| Help Scout helpscout.com | Customer Support | Two-factor authentication | USA |
| Helpshift helpshift.com | Gaming/Player Engagement | SMS integration | USA |
| HeyMilo heymilo.ai | HR Tech | SMS and voice call notification delivery | United States |
| Highradius highradius.com | Fintech | Voice-over internet protocol services for voice communications | USA |
| HiHello hihello.com | Productivity | Voice/SMS Communications Service Providers | United States |
| Hiive hiive.com | Fintech | Cloud communications platform | USA |
| Hireology hireology.com | HR Tech | Engineering | N/A |
| Honeydew honeydew.ai | AI/ML, Data Analytics | Customer Engagement Platform (CEP) | EU |
| Honeydew honeydew.ai | AI/ML, Data Analytics | Customer Engagement Platform (CEP) | US |
| HubSpot hubspot.com | Marketing | Calling and SMS Functionality | United States |
| Hubstaff hubstaff.com | Productivity/Time Tracking Software | Communications | N/A |
| Humbear Media humbearmedia.com | HealthTech | SMS delivery and phone number provisioning via GoHighLevel | USA |
| Humi humi.ca | HR Tech | SMS Notifications | USA |
| Hunter hunter.io | Marketing | Phone verifications | USA |
| Hyaa AI hyaa.ai | HR Tech | SMS (and optionally voice) communications | Global |
| Hyperping hyperping.io | DevOps | SMS and phone call alert delivery | United States (global SMS/voice routing) |
| Hyperping hyperping.com | DevOps | SMS and phone call alert delivery | United States (global SMS/voice routing) |
| HYPR hypr.com | Cybersecurity | An optional service used for text message, chat, and video functions based on the configured feature/identity validation flows enabled in the HYPR Affirm product. | USA |
| iCIMS icims.com | HR Tech | Texting to SMS carriers | United States |
| iContact icontact.com | Marketing | Messaging service | USA |
| Ideanote ideanote.io | Fintech | Email Infrastructure | EU or United States (depending on workspace Data Residency Settings) |
| Impel impel.ai | AI for Automotive | Business System Provider | US |
| Incident.io incident.io | Incident Management | Text Message and Email Delivery Service | United States |
| InEvent inevent.com | Event Management Software | SMS delivery | Europe |
| Inex One inex.one | Market Research | Cloud-based Video Conferencing Service Provider | EU/EEA |
| Infrascale infrascale.com | Cloud Disaster Recovery | SMS Notifications and Email Relay | — |
| InMoment inmoment.com | Customer Experience Management | Email and SMS Service Provider (Survey Invitations) | USA |
| Insider insiderone.com | Marketing | SMS/MMS Delivery Provider | USA, Europe |
| Insightly insightly.com | CRM, Marketing Automation | Communication APIs | USA |
| Instafill.ai instafill.ai | DevOps, Document Automation | SMS delivery for Two-Factor Authentication (2FA). | Not specified |
| Instapage instapage.com | Marketing | Phone Calls and Text Messages Communication | Unknown |
| Instatus instatus.com | DevOps | Text messaging service | United States |
| Insycle insycle.com | Data Management | Send application text/SMS messages for customer configured alerts and notifications. | California, USA |
| Intellicheck intellicheck.com | Fintech | SMS (Text Messaging) | USA |
| Intellischool intellischool.co | EdTech | SMS and voice telephony services | San Francisco, CA (USA) |
| Intempt intempt.com | Marketing | SMS and telephony | United States |
| Intercom intercom.com | Customer Service Technology, AI Solutions | SMS and Phone functionality | USA |
| Intercom intercom.com | Customer Service Technology, AI Solutions | SMS and Phone functionality | USA |
| Invent useinvent.com | AI/Customer Service | Communication APIs (SMS, voice, etc.) | USA |
| Ironclad ironcladapp.com | AI Contract Lifecycle Management | SMS and Text Notifications | USA |
| Iterable iterable.com | Marketing | Send SMS via API. | United States |
| JazzHR jazzhr.com | HR Tech | Messaging & Notifications | USA |
| JazzHR jazzhr.com | HR Tech | Messaging & Notifications | USA |
| Jellyvision jellyvision.com | HR Tech | Communication services | USA |
| Jobvite jobvite.com | HR Tech | Messaging & Notifications | USA |
| Jotform jotform.com | Productivity | AI-based customer engagement | USA |
| Junip junip.co | Marketing, E-commerce | Communications services | United States |
| Kalingo kalingo.hu | Marketing | Messaging (SMS, voice) | USA |
| Keap keap.com | CRM, Marketing Automation, Business Automation | Communication API services | USA |
| Klaviyo klaviyo.com | Marketing Automation, AI | Communications Services | United States |
| KrispCall krispcall.com | Cloud Telephony | Infrastructure services | USA |
| Kustomer kustomer.com | AI/ML, Customer Experience (CX) | Native Voice + SMS Channel | United States |
| Kyro kyro.ai | Construction Tech | Communication, APIs, Engagement for Engineers | Not specified |
| Lakeside Software lakesidesoftware.com | DevOps | Customer communication services | United States |
| Lana lana.dev | — | SMS notification services (e.g., for platform alerts or two-factor authentication for Merchants, if applicable). | Global |
| LastPass lastpass.com | Cybersecurity | Communication services for SMS and voice | United States |
| LawVu lawvu.com | Legal Tech | Email Service Provider (Sendgrid) | United States |
| Leapsome leapsome.com | HR Tech | Notification of users through selected channels (e.x. E-Mail, SMS), Multi-factor Authentication | EEA and US |
| Learning Pool learningpool.com | EdTech | Communications API | USA |
| Learningwithparents learningwithparents.com | EdTech | Automated and mass SMS. | — |
| Leavelogic leavelogic.com | HR Tech | Cloud-based Communications Services | United States |
| Leena AI leena.ai | AI/ML | Sending SMS to the users | USA, can be localized in select locations |
| Level3 level3.ai | AI/ML | Telephony and messaging | USA |
| Lever lever.co | HR Tech | Messaging & Notifications | USA |
| Linus Health linushealth.com | HealthTech | SMS communications | United States |
| Liveagent liveagent.se | Customer Service Software | LiveAgent uses Twilio as their VoIP provider. | N/A |
| LiveAgent Alihankkijat live-agent.fi | Customer Service Software | VoIP service provider. | USA |
| LiveAgent - Help Desk Software at Live Chat liveagent.ph | Customer Support | VoIP provider | United States |
| LiveAgent - Help Desk Software & Live Chat liveagent.com | Customer Service Software | VoIP provider | United States |
| LiveAgent Underbehandlare live-agent.se | Helpdesk Software | VoIP services | Not specified |
| Liveforce liveforce.co | HR Tech | Service Communications Provider | USA |
| Loadsmart loadsmart.com | Logistics/Transportation Technology | SMS service | United States |
| Loadster loadster.app | DevOps | Voice, SMS | USA |
| LogicMonitor logicmonitor.com | IT Operations, Observability, AIOps | SMS & Communication Services | USA (San Francisco, CA) |
| Looker looker.com | Analytics, AI/ML | Email delivery for hosted instances. | United States of America |
| Luma luma.com | Event Management | SMS delivery | United States |
| Mailchimp mailchimp.com | Marketing | To provide our SMS program. | California, USA |
| Malwarebytes malwarebytes.com | Cybersecurity | Executive platform reporting | USA |
| Manus manus.im | AI/ML | SMS notifications | United States |
| Mattermost mattermost.com | Cybersecurity | Email Notifications | United States |
| Matters.Cloud matters.cloud | Legal Tech | SMS Functionality | United States |
| Maxio maxio.com | Fintech | Secure Authentication | San Francisco, CA |
| Medable medable.com | HealthTech | Televisit instant messaging and connectivity management | USA (Virginia) |
| MEFERI meferi.com | AIDC (Automated Identification and Data Capture) | For sending SMS notifications (e.g., critical alerts, two-factor authentication codes) to Customer’s authorized users in connection with the Services. | USA |
| Meltwater meltwater.com | Media Intelligence | Email engagement | USA |
| Meltwater meltwater.com | Media Intelligence | Email engagement | USA |
| Mercor mercor.com | AI/ML | Engineering | USA |
| Mimecast mimecast.com | Cybersecurity | Communication Services | USA |
| Mistral mistral.ai | AI/ML | Phone number verification | United States |
| Mobiclocks mobiclocks.com | HR Tech | For SMS delivery | United States |
| Moble moble.com | AI/ML, Web Development, SaaS | SMS, voice, and telephony messaging infrastructure. | USA |
| ModernLoop modernloop.io | HR Tech | Calls and Messaging Platform | USA |
| MongoDB mongodb.com | Data Management | 2FA and SMS Alerts | San Francisco, CA |
| Moogsoft moogsoft.com | DevOps | Sends application texts/SMS for customer configured alerts | San Francisco, CA, USA |
| Motion usemotion.com | Productivity | Automated voice calling and SMS | United States |
| Mynoteable mynoteable.com | HealthTech | SMS delivery and telephony VR | United States |
| My-onetrust-com my-onetrust-com.proxy.uchicago.edu | EdTech | SendGrid services Voice, E-mail, and SMS services | San Francisco, CA, U.S.A. |
| My-onetrust-com my-onetrust-com.proxy-tu.researchport.umd.edu | EdTech | SendGrid services Voice, E-mail, and SMS services | 375 Beale Street Suite 300 San Francisco, CA 94105, U.S.A. |
| My-onetrust-com my-onetrust-com.ezproxy.staffs.ac.uk | Cloud Infrastructure | SendGrid services Voice, E-mail, and SMS services | 375 Beale Street Suite 300 San Francisco, CA 94105, U.S.A. |
| Myresman myresman.com | PropTech | Email and SMS-based communication | USA |
| Navixy navixy.com | Telematics | SMS and voice communication | United States |
| NewsCatcher newscatcherapi.com | Analytics | Communication services | Global |
| Nexbyt Technology nexbyt.com | AI/Cloud Services | SMS and email notification delivery services | United States |
| NextRoll nextroll.com | AdTech | Sending and delivering of email communications (Sendgrid services) | USA |
| NICE inContact inintca.com | Customer Experience (CX), AI-Powered Solutions | SMS/MMS メッセージング。 | アメリカ合衆国 |
| Nmi nmi.com | Fintech | Communications PaaS provider for voice and SMS | USA |
| Notion notion.so | Productivity | Multi-factor Authentication | USA |
| Nutshell nutshell.com | Sales CRM and Marketing Automation | Provides telephony services for click-to-call and SMS. Provides internal product usage analytics. | USA |
| Okta okta.com | Identity Security | SMS authenticator | USA |
| Omni omniapp.co | Productivity | Communication services | USA |
| Onclaim onclaim.com | HR Tech | Communications platform (SMS, voice, email) | United States |
| one-touch onetouchhealth.net | HealthTech | SMS and communication services | United States |
| OneTrust onetrust.com | AI Governance | SendGrid services Voice, E-mail, and SMS services | San Francisco, CA 94105, U.S.A. |
| Operator Labs operator.io | AI/ML | Communication services | USA |
| Opswat opswat.com | Cybersecurity | MetaDefender OT Access | USA |
| Optro optro.ai | GRC (Governance, Risk, Compliance) | SMS multi-factor authentication provider | US |
| Orbio orbio.work | HR Tech | Telephony / Messaging | EU |
| Orlo orlo.tech | Community Engagement/Social Media Management | Provides us with API’s in to call, SMS and WhatsApp services | UK |
| Ortto ortto.com | Marketing | SMS Delivery | United States, European Union, Australia |
| Outreach outreach.io | Sales Technology | Voice provider and other communication services, including call recording storage for Outreach Voice product | United States |
| OutRival, Inc. outrival.com | AI/ML | PSTN/SMS, SIP trunks, phone number provisioning | — |
| PagerDuty jeli.io | DevOps | SMS & Voice/Telecom/Email Notification Services/User Experience Tools | United States |
| PagerDuty pagerduty.com | DevOps | SMS & Voice/Telecom/Email Notification Services/User Experience Tools | United States |
| PandaDoc pandadoc.com | Document Management | SMS Functionality for 2 Factor Authentication | United States |
| Panelfox panelfox.io | — | SMS | USA |
| Parloa parloa.com | AI/ML | optional for AMP / RTT / RBA | US for US based, EU for EU based |
| Partech partech.com | Hospitality Tech | Inbound and outbound SMS communications, Phone calls for OTP delivery, and SendGrid for Outbound emails | USA |
| Pax paxai.com | Fintech | Communication services | Global |
| PDFfiller pdffiller.com | Document Management, E-Signature Solutions | Phone Calls and Text Messages Communication | United States |
| Pelcro pelcro.com | Subscription Management | Cloud Communications | United States of America |
| Pelcro get.pelcro.com | Subscription Management Software | Cloud Communications | United States of America |
| Pexip Service Help pexip.com | Video Conferencing | SendGrid Email Services | EEA, United States, Switzerland |
| Pexip Service Help pexip.com | Video Conferencing | SMS messages are sent via Twilio | EU |
| Pinecone pinecone.io | Analytics | Customer notifications | USA |
| Ping Identity pingidentity.com | Identity and Access Management (IAM) | Secure SMS OTP and voice authentication | United States |
| Pinpoint pinpointhq.com | HR Tech | SMS functionality | United States |
| Pinwheel pinwheelapi.com | Fintech | SMS notification provider for 2 Factor Authentication | United States |
| Planning Center planning.center | Church Management Software | Text Messaging | USA |
| Pleo pleo.io | Fintech | Analytics Functionalities | EU |
| PointOne pointone.com | Legal Tech | Cloud communications platform | USA |
| Popl popl.co | Event Management, Sales Technology, CRM Integration | Communication APIs (SMS, voice, video) | United States |
| Postscript postscript.io | Marketing | IT infrastructure | United States of America |
| PowerPlan powerplan.com | Fintech | SendGrid – in app messaging | USA |
| Powersync powersync.com | Mobile Development / Sync Technology | Two-factor authentication (2FA) | US |
| Procore Technologies procore.com | Construction Management Software | Transactional and Marketing Email | United States |
| Proctorio proctorio.com | EdTech | Call Routing and SMS Provider | USA |
| ProntoForms prontoforms.com | Field Service Management | SMS Messaging | United States |
| Provet provet.cloud | HealthTech | SMS Messaging | EU, UK and USA |
| Qualified qualified.com | AI/ML | Cloud Infrastructure | USA |
| Quantic Help Docs quantic.edu | EdTech | SMS | USA |
| Quantum Workplace quantumworkplace.com | HR Tech | SMS and SMTP Services | United States |
| Queue-it queue-it.com | Traffic Management | Sending e-mails (SendGrid) for 'Invite Only' – end users | US |
| Quo Resource Center openphone.co | Telecommunications | Voice & SMS communication | US |
| Quo Resource Center quo.com | Telecommunications/AI | Voice & SMS communication | US |
| Raisely raisely.com | Fundraising Technology | SMS and 2FA services | United States |
| Rally UXR rallyuxr.com | Research Operations | SMS Sending | US |
| RamNode ramnode.com | Cloud Infrastructure | Fraud prevention | USA |
| Ramp ramp.com | Fintech | Email and SMS message routing and transmission; data analytics | US |
| Rannkly rannkly.com | Marketing | Cloud Communications Platform (SMS) | United States |
| Reevo reevo.ai | Sales Technology | SMS notification provider for 2 Factor Authentication | United States |
| Refersion refersion.com | Marketing | providing SMS message services on behalf of Refersion | San Francisco, CA |
| Replit replit.com | DevOps | SMS verification | USA |
| Resgrid resgrid.com | Public Safety Technology | Text messaging and voice call delivery | USA |
| Respond.io respond.io | Customer Communication Platform | Communication APIs (SMS, WhatsApp, etc.) | USA |
| Retell AI retellai.com | AI/ML | Multi-Factor Authentication and Telephony features | twilio.com |
| Revenue ringdna.com | Sales Enablement, AI, SaaS | Business Communications Services | San Francisco, CA, US |
| Revenue revenue.io | Sales Technology | Business Communications Services | San Francisco, CA, US |
| Reversecontact reversecontact.com | IT Services and IT Consulting | Phone verifications | USA |
| Review-runner review-runner.co.uk | SaaS (Review Management) | SMS message delivery for review requests | San Francisco, California, USA |
| ReviewTrackers reviewtrackers.com | Reputation Management | Email and SMS Delivery | USA |
| Revinate revinate.com | Hospitality Tech | Communication services via SMS and voice | United States |
| Rewst rewst.io | Automation, DevOps | Cloud communications API/integration platform. | United States |
| Riipen riipen.com | EdTech | Email delivery | USA |
| ROKT rokt.com | E-commerce | SMS delivery (optional opt-in) | USA |
| Roofai roofai.com | AI/ML, Real Estate Tech | SMS Processing | USA |
| Rosetta Stone rosettastone.com | EdTech | Supports administrative and functional communications relating to product (e.g., password reset email, welcome email) | USA |
| Rubrik rubrik.com | Cybersecurity | Sendgrid email service used to send notifications about the products and services to customer support teams and/or customer contacts. | USA |
| SailPoint sailpoint.com | Cybersecurity | Two-factor authentication communication via mobile device provider | Same location that customer selects for hosting |
| Samsara samsara.com | IoT and Fleet Management | Customer segmentation, alerting, support, and ticketing | USA |
| Schedule it Ltd scheduleit.com | Productivity | Used for multi-factor authentication if SMS is enabled. | European Economic Area, United States |
| Schedulista schedulista.com | Productivity | SMS / Text message provider. | San Francisco, CA |
| Secureframe secureframe.com | Compliance Automation | Email communications about Customer’s use of the Services and related product engagement | United States |
| Seekr seekr.com | AI/ML | SMS for Multifactor Authentication | San Francisco, CA USA |
| Segment segment.com | Cloud Infrastructure | Provision of the Twilio Services | USA |
| Sendbird sendbird.com | Communication Infrastructure | Phone number, Voice, and Messaging (SMS, OTP) API provider | United States |
| SendSafely sendsafely.com | Cybersecurity | SMS Delivery | United States |
| Sendthisfile sendthisfile.com | Cloud Infrastructure | Mobile SMS API and SendGrid for file download notifications | United States |
| Sensehq sensehq.com | HR Tech | SMS and WhatsApp communications | United States |
| Sequence sequencecommerce.com | E-commerce Advertising | SMS notifications and communications | United States |
| Serverpilot serverpilot.io | Cloud Infrastructure | SMS | USA |
| Sessionboard sessionboard.com | Event Management/Tech | SMS Service Provider | USA |
| SetHero sethero.com | Media Production Software | Transactional SMS provider (backup) | USA |
| SevenRooms sevenrooms.com | Hospitality Technology | SMS messaging from VMS to guests | United States |
| Shiftmove shiftmove.com | Mobility Operations Software | Product analytics and tool integration (via Segment) | San Francisco, USA |
| Shorthand Support shorthand.com | Marketing | Communication API for SMS enabling customers to send story previews to any mobile device | US |
| Sierra sierra.ai | AI/ML | Telephony | USA |
| signNow signnow.com | E-signature, Document Management | Phone Calls and Text Messages Communication | United States |
| Sine sine.co | HR Tech | SMS functionality | USA, Ireland, Brazil, Singapore, Japan, Australia |
| Singlewire Software singlewire.com | Safety Communication Technology | Cloud-based notification services, including SMS and PSTN phone, initiated through InformaCast Fusion or InformaCast Mobile. | United States |
| Sitetracker sitetracker.com | Asset Lifecycle Management | Cloud-Based Email Delivery and SMS Notification Services | United States |
| SiteWit sitewit.com | Marketing | SMS Notifications | USA |
| SmartRecruiters smartrecruiters.com | HR Tech | Twilio sends text and WhatsApp messages between a candidate and a Customer. | San Francisco, CA, USA |
| Smartsheet smartsheet.com | Productivity | SendGrid processes and delivers emails sent from the Content Automation application. | United States |
| Smartsheet smartsheet.com | Productivity | SendGrid processes and delivers emails sent from the Resource Management application. | United States |
| Sogolytics sogolytics.com | Experience Management | Enables users to send surveys via SMS | USA |
| SolarWinds solarwinds.com | IT Management / DevOps | Communication services | USA |
| Sonatype sonatype.com | DevOps | Communication services | USA |
| Sous-traitants LiveAgent liveagent.fr | Customer Support/Help Desk Software | VoIP service provider | USA |
| Spark Hire sparkhire.com | HR Tech | SMS provider | United States |
| Spinach spinach.ai | AI/ML | Authentication | United States |
| Spine AI getspine.ai | AI/ML | Communications API | USA |
| Spracovitelia údajov LiveAgent liveagent.sk | Customer Support | VoIP provider | USA |
| Squadcast squadcast.com | DevOps | SMS, Phone call & Email delivery service | USA |
| Squawkvoice squawkvoice.ai | AI Voice Technology | Telephony and call routing | United States |
| Storyblok storyblok.com | Content Management, Headless CMS | Message Provider (2FA) | United States |
| Stripe stripe.com | Fintech | Cloud communications platform as a service including two factor authentication and user support | United States |
| Sub Data Processors moesif.com | API Analytics | Communication Provider | United States |
| Sub Processors eventpower.com | Event Management Software | Chat, video chat | USA |
| Sub Processors quinncia.io | EdTech | Email Communication | USA |
| Sub Processors lexisnexis.co.uk | Legal Tech | Software | Australia, EU, USA |
| Sub Processors lexisnexis.com | Legal Tech | Software | Australia, EU, USA |
| Sub Processors chargeover.com | Fintech | Sending SMS Messages | Unknown |
| Sub- Processors voze.com | Sales Enablement | Transactional email delivery (password resets, notifications, onboarding) | United States |
| Sunday App sundayapp.com | Fintech | APIs for communication integration | US |
| Superhuman superhuman.com | Productivity | Platform provider for cloud communications | USA |
| Supportyourapp supportyourapp.com | Customer Service Outsourcing | Cloud communications platform | United States |
| Surface Labs withsurface.com | Marketing Technology | Communication services | United States |
| SurveyMonkey pollmonkey.com | Data Analytics | SMS delivery. | USA |
| SurveyMonkey en.surveymonkey.com | Analytics | SMS delivery. | USA |
| SurveyMonkey education.surveymonkey.com | Survey Software | SMS delivery. | USA |
| SurveyMonkey kornferry.surveymonkey.com | Analytics | SMS delivery. | USA |
| SurveyMonkey uk.surveymonkey.com | Analytics | SMS delivery. | USA |
| SurveyMonkey surveymonkey.net | Analytics | SMS delivery. | USA |
| Surveypal surveypal.com | Customer Experience Management (CXM) | Reserve SMS sending provider (if in use) processing telephone numbers | US |
| SurveySparrow surveysparrow.com | Customer Experience, Analytics | SMS share utilizes Twilio to deliver messages | United States |
| Symphony symphony.com | Fintech | End user notifications; Gateway provider for SMS Federation Services | U.S. |
| Talkjs talkjs.com | Communication/Chat API | Sending SMS notifications | EU |
| Tally tallyhq.com | Fintech | Communication APIs | United States |
| Taskade taskade.com | Productivity | Communication services | Global |
| tawk.to tawk.to | Customer Communication | Communications technology provider | USA |
| Teachingstrategies teachingstrategies.com | EdTech | Messaging platform for ReadyRosie (SOC 2 Type 2 audited) | United States |
| Teamleader teamleader.eu | Productivity | Functionality: Voice calls via the Internet (VoIP) | USA |
| Teamtailor Support teamtailor.com | HR Tech | Communicating via SMS. | USA |
| Telnyx telnyx.com | Telecommunications, Voice AI | Collection, consolidation, and management of customer data from multiple sources. | San Francisco, CA, USA |
| Tempo tempo.io | Productivity, Project Management, AI | Streamlines usage data collection, routing it to analytics tool. | United States |
| Tempo tempo.io | Productivity, Project Management, AI | Sending transactional emails, such as account activations, password resets, order confirmations, and other communications. | United States |
| Tenable® tenable.com | Cybersecurity | SMS Notifications and Two-factor Authentication | United States |
| Tenfold tenfold.com | Customer Engagement, CRM Integration | Cloud-based SMS/Phone Services | United States |
| Textline textline.com | Communication/Business SMS | Messaging | USA |
| Thatworks thatworks.ai | AI/ML | Communication | USA |
| Threatdown threatdown.com | Cybersecurity | Executive platform reporting | USA |
| Thruinc thruinc.com | Managed File Transfer (MFT) | Multi-factor authentication via SMS and email (SendGrid) | San Francisco, CA, United States |
| Timecounts timecounts.app | Volunteer Management Software | SMS messaging | United States |
| Timekeeper timekeeper.co.uk | HR Tech | Sending text messages to customers | USA |
| Timely gettimely.com | HealthTech | Cloud-based SMS notification services | United States |
| TitanFile titanfile.com | File Sharing, Cybersecurity | Multi factor authentication, SMS and voice delivery. | United States |
| TitanFile titanfile.com | File Sharing, Cybersecurity | Email delivery. | United States |
| Total Expert totalexpert.com | Fintech | Email and SMS delivery | US |
| Tray tray.ai | AI/Integration Platform as a Service (iPaaS) | Processes emails used by customers | United States |
| Trustmary trustmary.com | Customer Experience Management | SMS-service | EU/EEA & USA |
| Tunepact tunepact.com | Music Marketing | SMS and phone‑based messaging | USA/global |
| TwentyThree twentythree.com | Video Marketing | Infrastructure for signaling and connection establishment between broadcasters and presenters. | United States |
| Twilio certificates.twilio.com | Communications Platform as a Service (CPaaS) | Provision of the Twilio Services | USA |
| Twilio wwnw.twilio.com | CPaaS (Communications Platform as a Service) | Provision of the Twilio Services | USA |
| Twilio twilio.com | Communication Platform as a Service (CPaaS) | Provision of the Twilio Services | USA |
| Ubiq ubiqsecurity.com | Data Security | Email automation | United States |
| Unibuddy unibuddy.com | EdTech | Text notification service provider to Unibuddy Platform | USA |
| Uniphore uniphore.com | AI/ML | Security | Based on location of Customer |
| Upfluence upfluence.com | Marketing | Communication services | USA |
| Uptime uptime.com | Monitoring Services | SMS and voice notifications | United States |
| Upzelo upzelo.com | Customer Loyalty Software | Transactional Email | United States |
| Userinterviews userinterviews.com | Research Technology | Sends SMS messages to Participants on behalf of Researchers | USA |
| Uslegalforms uslegalforms.com | Legal Tech | Phone Calls and Text Messages Communication | United States |
| Validity validity.com | Marketing | Text Message MFA | US |
| Vapi vapi.ai | Voice AI, DevOps | Telephony | United States, EU |
| Varonis varonis.com | Cybersecurity | Communication services | USA |
| Virtru virtru.com | Cybersecurity | SMS delivery | U.S. |
| Vogent vogent.ai | AI/ML, Voice Technology | Communications APIs (SMS, voice, notifications) | US/EU |
| VOICEB.ai Docs voiceb.ai | AI/ML, Sales Automation | Voice call handling and phone number provisioning | United States |
| VoiceBase voicebase.com | AI/ML, Speech Analytics | Cloud-Based SMS Services | United States |
| Vortexa vortexa.com | Analytics | Processes personal data to send email notifications from Vortexa platforms | USA |
| Warp joinwarp.com | HR Tech | Communication APIs | United States |
| Weaviate weaviate.io | AI/ML, Data Analytics | Email communications, alerts and marketing | USA |
| Web web.thareja.ai | Cloud Infrastructure | SMS and voice communications | United States |
| WeTravel wetravel.com | — | Text message delivery for authentication and other purposes. | USA |
| Willo Knowledge Base willo.video | HR Tech | Transactional SMS communications. | US |
| Workable workable.com | HR Tech | A Texting Provider, used for the texting Feature. | San Francisco, CA 94105, United States |
| Workleap Sub Processors workleap.com | HR Tech | E-mail delivery platform | USA |
| Worksome worksome.com | HR Tech | 2FA / SMS sending | EU |
| Workspot Docs workspot.com | DaaS (Desktop as a Service) | Sends automated emails to customer users | United States |
| Xero xero.com | Fintech | Cloud communications provider | United States |
| xMatters xmatters.com | DevOps | Twilio is our primary provider of voice conferencing and SMS services to users of the xMatters platform, and secondary provider of voice notifications. | United States |
| Xodo Sign (formerly eversign) eversign.com | eSignature/Document Management | Text message service | United States |
| Xref xref.com | HR Tech | Transactional SMS services provider | United States |
| Xurrent 4me.com | ITSM/IMR | Voice, SMS Notification Provider | USA |
| Xurrent xurrent.com | IT Service Management (ITSM) | Voice, SMS Notification Provider | USA (United States of America, EU, Asia, Australia, or Africa) |
| Yardi yardi.com | PropTech | Provides services that enable connectivity and the easy integration of telecommunications capabilities into software applications, including mobile, web-based and desktop applications. | USA |
| Yesware yesware.com | Sales Engagement | Telephony provider | USA |
| Yotpo yotpo.com | Marketing | Enables communication with Shoppers via SMS and chat | USA |
| Zapier zapier.com | Automation, AI, Productivity | SMS sending capabilities per customer queries | USA |
| Zenbase AI zenbase.ai | EdTech | Communication services | USA |
| Zendesk zendesk.com | Customer Experience, AI/ML, SaaS | Supports telecommunication and messaging functionality, including telecommunication infrastructure. | Voice Functionality: United States, Ireland, Australia, Zendesk Sell: United States |
| Zendesk help zendesk.co.uk | Customer Service Software, AI | Supports telecommunication and messaging functionality, including telecommunication infrastructure. | Voice Functionality: United States, Ireland, Australia; Zendesk Sell: United States |
| Zendpa zendpa.com | Legal Tech | Communication APIs and services | United States |
| Zoom zoom.us | UCaaS (Unified Communications as a Service) | Notifications | United States, European Union |
| Zoom Communications zoom.com | UCaaS (Unified Communications as a Service) | Communication services | United States |
| Субпроцессоры LiveAgent ru.liveagent.com | Customer Support | Providing VoIP services. | USA |
| المعالِجون الفرعيون لدى LiveAgent liveagent.ae | Customer Support | Provides online communication services (VoIP) | USA |