13 September 2026 Developer tools Issue 8
CodeRabbit bet that the bottleneck would move to code review
Founded in early 2023 to review pull requests that AI was starting to write faster than people could read them. Two and a half years and a Series B later, it says it sits on six million repositories.
What it does
CodeRabbit connects to a GitHub or GitLab organization and reviews every pull request automatically as it arrives.3 The company describes the job as a quality gate for code that agents write: catching problems before they merge, with unit tests and docstrings generated along the way.2
In September 2025 it added a command-line version, so the review can happen in the terminal, alongside coding agents, before a pull request exists.2 The homepage now sells a security product next to the reviewer, pitched as reasoning about code rather than matching patterns.3
We saw that adoption happen, and it was very clear to me that as a second-order effect, it's going to cause bottlenecks in the code review.
Harjot Gill, CodeRabbit chief executive, to TechCrunch, September 2025 1
Who is building it
Harjot Gill is the chief executive. Before this he was running FluxNinja, an observability startup he co-founded, and before that he sold his first startup, Netsil, to Nutanix in 2018.1 He started CodeRabbit in early 2023.1
The Series B announcement on the company's blog carries two names, Gill's and Gur Singh's.2 Its investors, per that post, are Scale Venture Partners, which led, NVentures, CRV, Harmony Partners, Flex Capital, Engineering Capital and Pelion Venture Partners.2
Where they are
The dated numbers come from September 2025. TechCrunch reported a $60 million Series B at a $550 million valuation, $88 million raised in total, annual recurring revenue above $15 million, growth of about 20 percent a month, and more than 8,000 businesses using it, Chegg, Groupon and Mercury among them.1
The company's own post from the same day gave the product numbers: installed on 2 million repositories, 13 million pull requests reviewed, revenue up tenfold, the team doubled, and 100,000 open-source projects using it.2
As of 12 September 2026 the homepage says 17K customers, 6 million repositories and $143 million raised, and calls CodeRabbit the most installed AI app on GitHub.3 Those are the company's figures, undated on the page, and we record them as claims rather than as verified metrics.
Why it is on AXIS Launch
Two reasons. The first is the thesis: that once machines write code faster than people can read it, the scarce thing is judgment, and a reviewer is where the value moves. Anyone building with AI tools is living inside that argument whether they have noticed or not.
The second is the way the growth story is told: with dated figures, in the founders' own words, and in the press. That is the shape of the revenue history this directory is built to help makers accumulate, and it is a useful reminder that a number without a date is not a metric.
The listing is unclaimed. If you work at CodeRabbit and want to add to it or correct it, the listing page says how.
Sources
- CodeRabbit raises $60M, valuing the 2-year-old AI code review startup at $550M TechCrunch, Marina Temkin, 16 September 2025. Accessed 12 September 2026.
- Our $60M Series B and Quality Gates for AI Coding CodeRabbit blog, Harjot Gill and Gur Singh, 16 September 2025. Accessed 12 September 2026.
- CodeRabbit homepage coderabbit.ai. Accessed 12 September 2026.