What is Braintrust?
Founded by Ankur Goyal, Braintrust operates as a specialized AI observability platform tailored for engineering and product teams. The company addresses the critical challenge of model reliability by providing granular visibility into multi-step agent workflows and intermediate reasoning data. By enabling teams to monitor and debug AI products at scale, Braintrust has established itself as an essential utility for high-growth organizations such as Notion, Replit, and Cloudflare. The platform serves as a foundational layer for enterprises transitioning from experimental AI prototypes to stable, production-grade applications.
How much funding has Braintrust raised?
Braintrust has raised a total of $121.1M across 3 funding rounds:
Angel/Seed
$5.1M
Series A
$36M
Series B
$80M
Angel/Seed (2023): $5.1M with participation from Greylock Partners
Series A (2024): $36M led by Base Case Capital, Databricks, Greylock Partners, and Datadog
Series B (2026): $80M supported by Greylock Partners, Andreessen Horowitz, ICONIQ Capital, and Base Case Capital
Key Investors in Braintrust
Greylock Partners
A veteran venture capital firm established in 1965, Greylock focuses on early-stage technology investments across AI, enterprise software, and infrastructure, with a history of backing market-defining companies.
Andreessen Horowitz
A prominent private venture capital firm that provides strategic backing to both early-stage startups and established growth-stage companies across the technology sector.
ICONIQ Capital
A privately-held investment firm that manages direct investments with a specific focus on technology growth equity, venture capital, and middle-market buyouts.
What's next for Braintrust?
The recent capital injection positions Braintrust to accelerate its product roadmap and expand its footprint within the enterprise AI ecosystem. As the industry shifts toward more autonomous agentic workflows, the requirement for sophisticated monitoring tools becomes paramount. Braintrust is expected to leverage this funding to enhance its diagnostic capabilities, deepen its integration with existing cloud infrastructure, and scale its go-to-market operations. By maintaining a focus on developer experience and operational transparency, the company is well-positioned to capture a larger share of the burgeoning AI infrastructure market, ensuring that businesses can deploy intelligent systems with confidence and precision.
See full Braintrust company page
