Company	Industry	Purpose	Location
Aleph getaleph.com	Fintech	AI observability	USA
Appcues appcues.com	Customer Engagement Platform	Provides monitoring and quality testing tools for optional Appcues AI features	USA & EU
Ariso ariso.ai	AI/ML, Productivity	LLM tracing	N/A
Concourse concourse.co	Fintech	Observability	156 2nd St, Suite 608, San Francisco, CA 94105, USA
Elementor elementor.com	Web Development	Observability for LLMs / AI monitoring	EU
Factorial factorialhr.com	HR Tech	Chatbot response debugging	Germany
LogicMonitor logicmonitor.com	IT Operations, Observability, AIOps	AI Model Tracing Observability & Audit	Germany
Mixpanel mixpanel.com	Analytics, AI/ML	Provides services supporting AI features in application services, analyzing AI interactions and system behavior to improve quality and safety of responses; processes Personal Information as necessary.	USA
Newcode newcode.ai	Legal Tech	Usage	United States
Orbio orbio.work	HR Tech	Engineering	EU
Outlit outlit.ai	Customer Data Management	AI observability, analytics, model monitoring	Germany
Phantombuster phantombuster.com	Sales Automation	LLM observability	United States
Select select.dev	Cloud Infrastructure	Tracing, evals and metrics for AI features	USA
Sendbird sendbird.com	Communication Infrastructure	Open Source LLM Engineering Platform for tracing, evaluation, prompt management, and metrics to debug and improve the LLM application	United States
TeamTeacher.ai teamteacher.ai	EdTech	LLM monitoring, governance, and quality assurance	EU region data centers
Typefully typefully.com	Social Media Management, AI Tools	AI telemetry/observability.	USA
Uberall uberall.com	Marketing	Observability, Prompt management and debugging for features of SaaS Product feature category/-ies “AI-powered Features” & “UB-I”	Germany
Zenlytic Docs zenlytic.com	Analytics	Process developer logs	United States

Frequently Asked Questions

How many companies use Langfuse as a sub-processor?

Langfuse is used by 18 companies as a third-party data processor (sub-processor) based on their public GDPR disclosures.

What industries use Langfuse?

Langfuse is most commonly used in Fintech, HR Tech, Customer Engagement Platform, AI/ML, Productivity, Web Development.

What is Langfuse used for?

Langfuse is primarily used for ai & machine learning, and also for engineering, analytics & monitoring.