Langfuse users list

Email list of companies using Langfuse

Q: What is included in the Data InfoMetrix Langfuse customers list?

The Data InfoMetrix Langfuse customer list delivers verified direct contact details for decision-makers (C-Suite, VPs, Directors, and System Owners) at companies actively operating Langfuse. Every dataset includes 60+ data fields such as direct email, phone dials, company size, revenue, and deployment details.

Q: How does Data InfoMetrix detect and verify active Langfuse software usage?

Data InfoMetrix uses a multi-layered verification approach: live web technology footprint scanning, job requisition requirement signals, partner ecosystem directories, and 5-stage SMTP handshake validation combined with manual human audits. Data InfoMetrix does not sell static or pre-packaged database dumps.

Q: How does Data InfoMetrix guarantee email deliverability for Langfuse contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Langfuse datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Q: Can Data InfoMetrix filter Langfuse accounts by specific edition, region, or company size?

Yes. Data InfoMetrix builds custom audiences according to your exact Ideal Customer Profile (ICP). You can segment Langfuse users by product edition, department headcount, annual revenue, industry vertical, and 180+ geographic regions.

Q: Why choose Data InfoMetrix over generic database brokers for Langfuse intelligence?

Generic database brokers sell access to frozen, static catalogs that decay at over 2% per month. Data InfoMetrix builds every Langfuse contact list fresh-to-spec upon request, ensuring your outreach reaches active platform owners with verified direct contact channels.

Q: Can Data InfoMetrix deliver a free sample Langfuse contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Langfuse criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

Connect with Heads of AI Engineering, VP Machine Learning, and LLMOps Leads building production GenAI applications with Langfuse. You can filter by inference scale and token budget.

4,200+Companies

21,500+Contacts

Updated Oct 7, 2026GDPR · CCPA99% accuracy

See sample data

Free Langfuse count + 10 sample records

4,200+ companies · 21,500+ contacts available

✓Exact count for your titles, regions and company size
✓10 verified sample records to check quality
✓Price quote within 1 business day

Trusted by B2B and enterprise revenue teams

How many companies use Langfuse?

Data InfoMetrix tracks 4,200+ companies running Langfuse as of October 2026, with 21,500+ verified contacts at those accounts. The largest groups are Generative AI Startups & Labs, Enterprise Applied AI Divisions and FinTech AI & Fraud Modeling. Buying decisions usually sit with the Chief AI Officer (CAIO), VP of Machine Learning and Head of AI Engineering. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count

Tracked accounts4,200+

Organizations detected running Langfuse.

Verified contacts21,500+

Direct emails and phone dials for decision-makers.

Primary personasHead of AI Engineering, VP of Applied Machine Learning, Chief AI Officer (CAIO)

Full buying committee mapped.

Deliverability SLA99%

SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.

Data specification · Updated Q4 2026

Technology category	AI Infrastructure & LLM Ops
Tracked organizations	4,200+ verified accounts worldwide
Decision-maker contacts	21,500+ records with emails, mobile and direct dials
Key roles	Head of AI Engineering, VP of Applied Machine Learning, Chief AI Officer (CAIO), platform administrators, IT directors, procurement
Geography	180+ countries · country-by-country counts on request
Verification	DNS and script telemetry, 5-stage SMTP handshake, manual research
Refresh cadence	Continuous, 30–45 day maximum record age at delivery
Compliance	GDPR, CAN-SPAM, CCPA and CASL
Delivery	24–48 hours as CSV, XLSX or CRM API

Editorial & verification

Researched by the Data InfoMetrix research team. Counts updated October 2026.

How we count and verify data

Size your Langfuse audience

Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.

Region

Company size

Buying role

Estimated segment✓ 99% SLA

4,200+Target accounts

21,500+Direct contacts

Decision-makers35%

Influencers45%

End users20%

Estimates from our current Langfuse dataset. Exact counts come with your quote.

Reach the whole buying committee

A Langfuse account is not one contact. We map the people who evaluate, buy, run and use it across AI Engineering, Applied Machine Learning & LLMOps Leadership.

Decision-makersC-suite & sponsors

Chief AI Officer (CAIO)VP of Machine LearningHead of AI EngineeringChief Technology Officer (CTO)

Influencers & adminsEvaluate & configure

Lead LLMOps EngineerPrincipal AI ArchitectSenior ML EngineerData Science Lead

End usersRun it every day

AI EngineersMachine Learning ScientistsPrompt EngineersBackend GenAI Developers

These are examples. We build records for any department, seniority or custom title.

See exactly what you get

Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, Langfuse edition, coexisting stack and intent.

Contact	Buying role	Work email	Direct dial	Company phone	Fax	LinkedIn profile	Company	LinkedIn company page	Industry	Address 1	Address 2	City	State	ZIP code	Country	Langfuse footprint	Intent	Status
ATDr. Aris ThorneChief AI Officer (CAIO)	Decision Maker	a.th**@cogniti*****.io	+1 (415) 55*-**	+1 (415) 55*-**	+1 (415) 55*-**	linkedin.com/in/a*s-th******	CognitiveScale Enterprise AI Systems Inc.	linkedin.com/company/cognitivescale-ai	Applied AI & Autonomous Agent Platforms	100 Pine St	Ste 2400	San Francisco	CA	94111	United States	Langfuse Enterprise AI Infrastructure & Cloud Cluster	High	✓ Verified 2026
NSNaveen SwaminathanVP of AI Engineering & LLMOps Architecture	Decision Maker	n.swa***@synapse*****.com	+1 (617) 55*-**	+1 (617) 55*-**	+1 (617) 55*-**	linkedin.com/in/n*en-swa*******	Synapse Biotech AI Discovery Inc.	linkedin.com/company/synapse-biotech-ai	Biotechnology & Computational Drug Discovery	500 Technology Square	—	Cambridge	MA	02139	United States	Langfuse LLM Observability, Evaluation & Prompt Tracing	High	✓ Verified 2026
HLHannah LindqvistHead of Semantic Search & Vector Retrieval	Decision Maker	h.lin**@stockh***.se	+46 (8) 55*-**	+46 (8) 55*-**	+46 (8) 55*-**	linkedin.com/in/h*ah-li*******	Stockholm Neural Search Solutions AB	linkedin.com/company/stockholm-neural-search	E-Commerce Semantic Search & Discovery	Sveavägen 44	—	Stockholm	Stockholm County	111 34	Sweden	Langfuse Vector Database & Approximate Nearest Neighbor Indexing	High	✓ Verified 2026
CVCameron VanceLead Machine Learning Infrastructure Architect	Influencer	c.va**@apexfin****.com	+1 (212) 55*-**	+1 (212) 55*-**	+1 (212) 55*-**	linkedin.com/in/c*ron-v*******	Apex FinTech Neural Analytics LLC	linkedin.com/company/apex-fintech-neural	Financial Market Prediction & Fraud Telemetry	1301 Ave of the Americas	—	New York	NY	10019	United States	Langfuse High-Throughput Inference & Speculative Decoding	High	✓ Verified 2026
ERDr. Evelyn RousseauDirector of Applied NLP & RAG Systems	Influencer	e.rou**@parishe****.fr	+33 (1) 45*-**	+33 (1) 45*-**	+33 (1) 45*-**	linkedin.com/in/e*yn-ro*******	Paris Clinical Intelligence Labs SAS	linkedin.com/company/paris-clinical-ai	Clinical Decision Support & Biomedical NLP	15 Boulevard Saint-Germain	—	Paris	Île-de-France	75005	France	Langfuse Enterprise RAG Pipeline & Semantic Knowledge Search	Medium	✓ Verified 2026
DCDarren CrossHead of Developer Experience & AI Tooling	Decision Maker	d.cr**@acceler*****.com	+1 (206) 55*-**	+1 (206) 55*-**	+1 (206) 55*-**	linkedin.com/in/d*en-cr******	Accelerate Cloud Engineering Corp	linkedin.com/company/accelerate-cloud-eng	Enterprise Cloud Systems & Developer Platforms	1201 3rd Ave	Ste 2200	Seattle	WA	98101	United States	Langfuse AI Code Generation & Developer Productivity Platform	High	✓ Verified 2026
AMAlistair MontgomeryLead AI Safety & Guardrails Engineer	Practitioner	a.mon**@edinburghf*******.uk	+44 (131) 55*-**	+44 (131) 55*-**	+44 (131) 55*-**	linkedin.com/in/a*air-mo*******	Edinburgh Quantitative Systems Ltd	linkedin.com/company/edinburgh-quant-sys	Automated Financial Advisory & Wealth Management	1 Lochside Ave	—	Edinburgh	Midlothian	EH12 9DJ	United Kingdom	Langfuse Agentic Workflow Execution & Guardrail Enforcement	Medium	✓ Verified 2026
KMKenichi MurataSenior Distributed AI Platform Engineer	Practitioner	k.mu**@kyotone*****.jp	+81 (75) 55*-**	+81 (75) 55*-**	+81 (75) 55*-**	linkedin.com/in/k*chi-m*******	Kyoto Neural Robotics Systems KK	linkedin.com/company/kyoto-neural-robotics	Robotics & Autonomous Machine Vision	Kyoto Research Park	Bldg 4	Kyoto	Kyoto Prefecture	600-8815	Japan	Langfuse Model Training & Distributed GPU Optimization	High	✓ Verified 2026

Illustrative rows showing 20 of 60+ fields. Full records are unmasked.

We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.

Also available:Seniority & departmentJob functionTenure in roleEmployee countAnnual revenueSIC & NAICS codesParent companyWebsite & domainProduct editionContract & renewal timingIntent topics & scoreEmail verification date

How we prove an account runs Langfuse

No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol

Pillar 1 · Telemetry

Live DNS & script signals

We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running Langfuse instance.

DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure

Pillar 2 · Operational intent

90-day hiring signals

We track job requisitions that ask for Langfuse skills, which shows ongoing budget and headcount.

Now hiringLangfuse Administrator

Now hiringLangfuse Architect

Now hiringLangfuse Engineer

Pillar 3 · Human & mailbox QA

Pre-delivery SMTP handshake

Each email is tested against the destination mail server, and titles are checked against current company rosters.

SMTP check ✓LinkedIn match ✓Title verified ✓

✓ Deliverable inbox and current role

Deliverability SLA

<3%

Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.

1:1 hard bounce replacement

Every email that hard-bounces within 30 days of delivery is replaced free, record for record.

24-hour pre-delivery ping

Live SMTP and MX checks right before we send your file.

Instant CRM import

Clean CSV or XLSX, ready for one-click import.

Ready for your outbound stack

Imports straight into the tools you use.

What are you trying to do?

Each campaign needs a different data strategy. Pick your goal to see how we build the audience.

Find companies on rival platforms and reach the people evaluating a move to, or away from, Langfuse.

Conquesting playbook

Pitch integrations, add-ons and complementary tools to companies already running Langfuse.

Ecosystem playbook

Build account lists around Langfuse deployment scale and engage the full committee across departments.

ABM playbook

Conquesting audienceSample

LangSmith

Weights & Biases

Arize AI

→

Langfuse

Know the stack around every account

Langfuse rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.

NVIDIA CUDA

AWS SageMaker

Weights & Biases

Open the coexistence matrix

What Langfuse customers look like

Anonymised profiles of companies in our Langfuse dataset of 4,200+ accounts. Named accounts are shared in your free sample, never on a public page.

Langfuse account profiles · anonymised

Company size	Industry	Country	Employees	Revenue
Mid-market	FinTech AI & Fraud Modeling	United Kingdom	200–999	$50M–$250M
Enterprise	HealthTech Clinical AI	United States	5,000+	$1B+
Upper mid-market	LegalTech & Intelligence Platforms	Canada	1,000–4,999	$250M–$1B
SMB	Generative AI Startups & Labs	Germany	50–199	$10M–$50M
Enterprise	Enterprise Applied AI Divisions	United States	10,000+	$5B+
Mid-market	FinTech AI & Fraud Modeling	Australia	500–999	$100M–$250M
Mid-market	HealthTech Clinical AI	United States	200–999	$50M–$250M
Enterprise	LegalTech & Intelligence Platforms	United States	5,000+	$1B+

Markets we cover

United States

India

United Kingdom

Canada

Germany

Australia

Singapore

France

New Zealand

Netherlands

Plus 170 more countries. Ask for a country-by-country count of Langfuse accounts and we'll include it with your free sample.

Build the list your way

Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.

Editions & modules

Filter by what they actually run.

+Langfuse Enterprise LLM Observability+Langfuse Prompt Playground & Versioning Engine+Langfuse Automated RAG Evaluation & Benchmarking+Langfuse Production Guardrails & Cost Tracking

Firmographics

Match revenue, size and industry.

+Industry+$1M–$10B+ revenue+Headcount+Ownership & funding+HQ & branches

Geography

Target any territory.

+US & Canada+US states+UK, DACH, Nordics+APAC & ANZ+Metro clusters

Need multi-attribute segments? Open the Audience Builder

What Langfuse teams are struggling with

Know the friction before you reach out, and position your product where it matters.

Friction 1

GPU Allocation Latency & Runaway Cluster Compute Inefficiencies in Langfuse

ImpactAI engineering teams face massive cloud GPU spend while clusters sit underutilized during off-peak inference cycles.

OpportunityGPU orchestration platforms, dynamic batching engines, model quantization, and serverless AI infrastructure.

Friction 2

Vector Database Latency Spikes & RAG Retrieval Hallucinations

ImpactEnterprise LLM applications suffer from slow response times and inaccurate context embeddings in production.

OpportunityHigh-throughput vector indexing, hybrid keyword-semantic search, and automated RAG evaluation frameworks.

Friction 3

Data Quality, Annotation Bottlenecks & Drift in Fine-Tuning Pipelines

ImpactModels degrade in production accuracy as input telemetry shifts, risking incorrect enterprise outputs.

OpportunityAutomated data labeling, synthetic dataset generation, and continuous model observability monitoring.

Intent triggers we track

✓Scaling distributed LLM inference clusters on Langfuse

✓Migrating model training workloads to cost-optimized cloud GPUs

✓Deploying production RAG vector search pipelines and embeddings

✓Implementing model evaluation, guardrails, and telemetry observability

“When you talk to companies who already use Snowflake and AWS about a native integration, the conversion rate skyrockets. Data InfoMetrix gave us the exact user list we needed.”

Director of Growth, a data integration companyName withheld at the client's request

Read the 6.8% Response case study

Langfuse list questions, answered

What is included in the Data InfoMetrix Langfuse customers list?

The Data InfoMetrix Langfuse customer list delivers verified direct contact details for decision-makers (C-Suite, VPs, Directors, and System Owners) at companies actively operating Langfuse. Every dataset includes 60+ data fields such as direct email, phone dials, company size, revenue, and deployment details.

How does Data InfoMetrix detect and verify active Langfuse software usage?

Data InfoMetrix uses a multi-layered verification approach: live web technology footprint scanning, job requisition requirement signals, partner ecosystem directories, and 5-stage SMTP handshake validation combined with manual human audits. Data InfoMetrix does not sell static or pre-packaged database dumps.

How does Data InfoMetrix guarantee email deliverability for Langfuse contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Langfuse datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Can Data InfoMetrix filter Langfuse accounts by specific edition, region, or company size?

Yes. Data InfoMetrix builds custom audiences according to your exact Ideal Customer Profile (ICP). You can segment Langfuse users by product edition, department headcount, annual revenue, industry vertical, and 180+ geographic regions.

Why choose Data InfoMetrix over generic database brokers for Langfuse intelligence?

Generic database brokers sell access to frozen, static catalogs that decay at over 2% per month. Data InfoMetrix builds every Langfuse contact list fresh-to-spec upon request, ensuring your outreach reaches active platform owners with verified direct contact channels.

Can Data InfoMetrix deliver a free sample Langfuse contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Langfuse criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data