- CodeRabbit has raised $143 million in Series C funding at a $1.5 billion valuation, co-led by Atomico and Smash Capital, less than a year after its $60 million Series B.
- The San Francisco startup is expanding from AI code review into Agentic Change Management, launching Triage, Change Stack and CodeRabbit Security.
- CodeRabbit now runs more than two million code reviews a week for over 17,000 customers, including NVIDIA, BMW and Adyen, with revenue up more than fivefold year over year.
Developers have spent years reviewing each other’s code by hand. Now a growing share of that code is written by AI agents, and nobody has fully worked out who checks their work. CodeRabbit, the AI code review startup, has raised $143 million to build that checkpoint.
The Series C was co-led by Atomico and Smash Capital, with new investors BMW i Ventures, Datadog, Hirtle Callaghan and Scenic Management, alongside returning backers CRV, Scale Venture Partners, Flex Capital, Pelion Venture Partners, Harmony Partners and Engineering Capital.
It follows a $16 million Series A in August 2024 and a $60 million Series B in September 2025, taking CodeRabbit’s total funding to roughly $231 million.
From code reviewer to governance layer
CodeRabbit was founded in 2023 by CEO Harjot Gill and COO Gur Singh. Gill previously served as senior director of technology at Nutanix, following its acquisition of his earlier startup, Netsil, in 2018. Singh led engineering teams at healthcare payments company Alegeus before co-founding CodeRabbit.
“We pioneered AI code review to give teams an independent system that validates the work before it ships. Agentic Change Management expands that layer to determine what deserves attention, explain each change’s impact, and continue monitoring the codebase after it ships,” said Gill, co-founder and CEO of CodeRabbit.
The company is headquartered in San Francisco and has recently opened a London office as it builds out its European team.
The startup works by automatically reviewing code with AI, catching bugs, security flaws and quality issues before they reach production. Its new Agentic Change Management push goes further. Triage decides which pull requests actually need a human’s attention, Change Stack explains what a given code change will affect across a codebase, and CodeRabbit Security scans production code on an ongoing basis for vulnerabilities.
For example, an engineering team fielding dozens of AI-agent-generated pull requests a day could use Triage to flag the handful that touch sensitive systems, rather than reviewing every change manually.
“Security now requires a continuous system that can reason across the repository, verify whether a threat is real, and move the fix back through the development workflow. CodeRabbit Security brings that capability into the same independent control layer teams use to review, understand, and govern software change,” said Brad Twohig, founding partner at Smash Capital.
A crowded field for AI’s quality-control layer
CodeRabbit competes with New York-based Qodo, which raised $70 million in a Series B led by Qumra Capital, as well as Greptile, which raised its Series A at a $180 million valuation, and CodeAnt AI, which closed a $2 million seed round.
Those rivals mostly focus on catching bugs and vulnerabilities inside generated code. CodeRabbit wants to be something bigger: a layer that also decides what deserves human attention and keeps tracking changes after they ship.
“CodeRabbit’s independent review system and deep contextual understanding position it as the control layer for agentic software development. The company’s growth and product depth convinced us that CodeRabbit is defining the new and critical field of Agentic Change Management,” said Luca Eisenstecken, partner at Atomico, who joins CodeRabbit’s board as part of the round.
“The digital ambitions of automotive companies depend on highly efficient engineering teams and consistently reliable software. CodeRabbit has become a key technology in helping developers improve code quality and work more effectively,” added Kasper Sage, managing partner at BMW i Ventures.
Europe is the next growth market
The global code review services market will be valued at $3.04 billion in 2026 and is projected to reach $4.79 billion by 2032, growing at a 7.67% CAGR, according to 360iResearch.
The company will use the new capital to expand further into Europe and Asia, including a push into Japan, and to fund research and product development. The startup is also committing more than $10 million over the next 12 months to keep its AI review tools free for open-source maintainers.
CodeRabbit’s $1.5 billion valuation only makes sense if code review stops looking like a niche developer tool and starts looking like infrastructure — the layer organizations lean on to trust and ship AI-written software at scale. A wave of well-funded rivals chasing the same narrow market says that the vision is far from settled.
