Braintrust

Braintrust is the AI observability platform helping teams measure, evaluate, and improve AI in production. By connecting evals and observability in one workflow, teams at Notion, Stripe, Zapier, Vercel, and Ramp ship quality AI products at scale.

braintrust.dev

Braintrust

braintrust.dev

HQUS

Team Size117

Open Jobs42

Total Funding-

Latest FundraiseUnknown

TL;DR

What they do: AI observability and evaluation platform for production AI

Notable product pieces: SDKs (multiple languages), Brainstore (AI traces DB), automated eval tooling

Customers / users: Used by teams at Notion, Stripe, Zapier, Vercel, and Ramp

Team size (evidence): 116 employees

Recent funding: Series B $80M led by ICONIQ (Feb 2026)

Company Overview

Problem Domain

AI observability, evaluation, and production quality for AI systems

Industry

AI infrastructure / observability

Tech Stack

Python

TypeScript

Ruby

Brainstore (proprietary AI traces database)

Funding Track Record

Series A- 2024-10-08

$36M

Series B- 2026-02-17

$80M

Investor Signal

“Includes investors such as Greylock, Andreessen Horowitz, ICONIQ, Elad Gil, Basecase Capital, Datadog, Databricks Ventures, Greg Brockman, Guillermo Rauch”

Founders

What we do

TL;DR

Company Overview

Funding Track Record

Founders

What we do

Braintrust

braintrust.dev

Braintrust

braintrust.dev

HQUS

Team Size117

Open Jobs42

Total Funding-

Latest FundraiseUnknown

TL;DR

What they do: AI observability and evaluation platform for production AI

Notable product pieces: SDKs (multiple languages), Brainstore (AI traces DB), automated eval tooling

Customers / users: Used by teams at Notion, Stripe, Zapier, Vercel, and Ramp

Team size (evidence): 116 employees

Recent funding: Series B $80M led by ICONIQ (Feb 2026)

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Company Overview

Problem Domain

AI observability, evaluation, and production quality for AI systems

Industry

AI infrastructure / observability

Tech Stack

Python

TypeScript

Ruby

Brainstore (proprietary AI traces database)

Funding Track Record

Series A- 2024-10-08

$36M

Series B- 2026-02-17

$80M

Investor Signal

“Includes investors such as Greylock, Andreessen Horowitz, ICONIQ, Elad Gil, Basecase Capital, Datadog, Databricks Ventures, Greg Brockman, Guillermo Rauch”

Founders

What we do

Join the Team

Teeming tracks opportunities at over 24,000 AI startups, then works with you to find (and land) the one you'll love.

DevOps Engineer

InternshipRotterdam, NL

Internship • Rotterdam, NL

Technical Writer

ContractNovi Sad, RS

Contract • Novi Sad, RS

AI Researcher

Part-timeJerusalem

Part-time • Jerusalem

Backend Developer

Part-timeCambridge, GB

Part-time • Cambridge, GB

Data Scientist

Part-timeMunich, DE

Part-time • Munich, DE

Product Designer

InternshipHaifa

Internship • Haifa