What is Braintrust?
Founded by Ankur Goyal, Braintrust operates as a specialized AI observability platform designed to meet the rigorous demands of engineering and product teams. The platform excels in capturing multi-step agent interactions and granular reasoning data, which are vital for maintaining model performance and reliability. Headquartered in San Francisco, the company has already established a robust client base, including industry leaders such as Notion, Replit, Cloudflare, Ramp, and Dropbox. By bridging the gap between experimental AI development and stable production deployment, Braintrust addresses a significant pain point in the current technological landscape, ensuring that AI-driven products remain performant and transparent at scale.
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 Databricks, Greylock Partners, Base Case Capital, and Datadog
Series B (2026): $80M supported by Andreessen Horowitz, Greylock Partners, Base Case Capital, and ICONIQ Capital
Key Investors in Braintrust
Andreessen Horowitz
A prominent venture capital firm that invests in both early-stage start-ups and established growth companies, known for its deep expertise in the technology sector.
Greylock Partners
One of the oldest U.S. venture capital firms, focusing on early-stage technology companies in sectors such as AI, enterprise software, and infrastructure.
Base Case Capital
An investment firm that provides initial funding to aspiring founders, emphasizing a hands-on approach and early-stage support for innovative builders.
What's next for Braintrust?
With this latest round of financing, Braintrust is well-positioned to accelerate its product roadmap and expand its market footprint. The company's focus remains on deepening its observability capabilities, allowing teams to gain even greater visibility into the intermediate reasoning processes of complex AI agents. As enterprises continue to integrate generative AI into their core workflows, the demand for Braintrust's reliability tools is expected to grow, potentially setting the stage for further expansion into new vertical markets and enhanced enterprise-grade features. The strategic backing from top-tier venture firms provides the necessary runway to maintain its competitive edge in the rapidly evolving AI infrastructure space.
See full Braintrust company page
