Langfuse - About the company
Langfuse is a seed company based in Berlin (Germany), founded in 2022 by Max Deichmann, Clemens Rawert and Marc Klingen. It operates as an Open-source observability and analytics platform for LLM applications. Langfuse has raised $4.5M in funding from Lightspeed Venture Partners and La Famiglia. The company has 122 active competitors, including 14 funded and 6 that have exited. Its top competitors include companies like Arize AI, Fiddler Labs and Braintrust.
Company Details
Open-source observability and analytics platform for LLM applications. It supports developers trace and debug complex applications, allowing them to understand the impact of changes on the overall application. It offers features including tracing LLM chains and measuring the quality of outputs.
- Website
- langfuse.com
- Social
- Email ID
- *****@langfuse.com
Key Metrics
Founded Year
2022
Location
Berlin, Germany
Stage
Seed
Total Funding
$4.5M in 3 rounds
Latest Funding Round
Investors
Ranked
6th among 122 active competitors
Employee Count
32 as on Sep 30, 2026
Legal entities associated with Langfuse
Langfuse is associated with 1 legal entity given below:
Legal Entity Name | Date of Incorporation | Revenue | Latest Employee Count | Reports |
|---|---|---|---|---|
Finto Technologies GmbH CIN: HRB248821 , Germany, Active | Jan 10, 2023 | - | - |
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Langfuse's funding and investors
Langfuse has raised a total funding of $4.5M over 3 rounds. Its first funding round was on Jan 01, 2023. Its latest funding round was a Seed round on Nov 07, 2023 for $*****. 3 investors participated in its latest round. Langfuse has 4 institutional investors.
Here is the list of recent funding rounds of Langfuse:
Date of Funding | Funding Amount | Round Name | Post-Money Valuation | Revenue Multiple | Lead Investors | Other Investors |
|---|---|---|---|---|---|---|
Nov 07, 2023 | 6679197 | Seed | 5284457 | 1645852 | 7773505 | 7859680 |
2023 | 8808 | Seed | 7430 | 2380 | 8433 | |
Jan 01, 2023 | 4155509 | Seed | 3879825 | 3150123 | 7435796 |
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Langfuse's founders and board of directors
Founder? Claim ProfileThe founders of Langfuse are Max Deichmann, Clemens Rawert and Marc Klingen. Marc Klingen is the CEO of Langfuse.
Here are the details of Langfuse's key team members:
- Max Deichmann: Co-Founder of Langfuse and founder of 1 other company. Contact Info: 2 email addresses
- Clemens Rawert: Co-Founder of Langfuse and founder of 1 other company. Contact Info: 2 email addresses
- Marc Klingen: Co-Founder & CEO of Langfuse and founder of 1 other company.
View details of Langfuse's Founder profiles and Board Members
Langfuse's employee count trend
Langfuse has 32 employees as of Sep 26. Here is Langfuse's employee count trend over the years:
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Langfuse's Competitors and alternates
Top competitors of Langfuse include Arize AI, Fiddler Labs and Braintrust. Here is the list of Top 10 competitors of Langfuse, ranked by Tracxn score:
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Rank | Company Details | Short Description | Total Funding | Investors | Tracxn Score |
|---|---|---|---|---|---|
1st |  Arize AI 2020, San Francisco (United States), Acquired | Provider of AI and SaaS-based ML model observability platform | $131M | 68/100 | |
2nd | Fiddler Labs 2018, Palo Alto (United States), Series C | Developer of AI observability platform for monitoring, explainability, and responsible AI | $100M | 67/100 | |
3rd |  Braintrust 2023, San Francisco (United States), Series B | Provider of an AI observability platform for building quality AI products | $121M | 66/100 | |
4th |  Galileo AI 2021, Burlingame (United States), Acquired | Provider of an AI observability and evaluation platform for agent reliability | $68M | 64/100 | |
5th | Comet 2017, New York City (United States), Series B | AI and SaaS-based ML solutions | $63M | 63/100 | |
6th | Open-source observability and analytics platform for LLM applications | $4.5M | 61/100 | ||
7th |  Why Labs 2019, Seattle (United States), Acquired | Provider of an AI analysis platform for ML models | $14M | 53/100 | |
8th |  Galileo 2021, San Francisco (United States), Series B | Provider of AI observability and evaluation platform for AI systems | $68.1M | 53/100 | |
9th | Provider of a platform for developing, deploying, managing, and monitoring AI | $31M | 48/100 | ||
10th | BotGauge 2024, Dover (United States), Seed | BotGauge helps teams red-team, evaluate, monitor, and govern AI agents from development to production | $2M | 47/100 |
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Langfuse's Investments and acquisitions
Langfuse has made no investments or acquisitions yet.
Reports related to Langfuse
Here is the latest report on Langfuse's geography:
News related to Langfuse
Media has covered Langfuse for a total of 2 events in the last 1 year.
•
ClickHouse Raises $400M Series D Led by Dragoneer to Accelerate Expansion Across Analytics and AI InfrastructureFinancial Post•Jan 16, 2026•ClickHouse, Dragoneer Investment Group, Ubicloud, Langfuse and 10 others
•
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