Greptile, a company building AI-based tools for code validation, has announced the closing of a $25 million Series A funding round. The investment was led by Benchmark Capital, with continued support from Cory Levy, Y Combinator, and Initialized Capital. The funding will be used to accelerate the development of Greptile’s universal code validation platform and expand its reach across software organizations.
As software development becomes increasingly collaborative—often involving both human engineers and AI coding agents like Devin, Claude Code, and Cursor—the volume of code being written has surged. However, traditional systems for validating code before deployment have struggled to keep pace with the evolving nature of code. Greptile aims to solve this problem by offering an independent layer of code validation that works across teams and platforms.
Greptile’s core product is an AI code review agent that automatically checks pull requests for bugs and enforces coding standards. In just the past month, the platform reviewed over 500 million lines of code for companies including Brex, Substack, PostHog, Bilt, and Y Combinator’s internal software team. These reviews helped prevent more than 180,000 bugs from reaching production.
Coinciding with the funding announcement, Greptile has introduced Greptile v3, a significant upgrade to its agent architecture. The new version is capable of identifying three times more critical bugs than its predecessor and has already outperformed other code reviewers in internal testing. Early access customers, including Brex, have reported significant improvements in bug detection.
Greptile v3 introduces several new features designed to enhance code quality and team productivity. The platform now learns an organization’s coding standards and best practices by analyzing engineer comments in GitHub and GitLab. These learnings are kept private and tailored to each organization. Examples include improved handling of database transactions, better logging and error reporting, enhanced type safety in TypeScript, and more secure validation patterns.
Additional upgrades include the Greptile MCP Server, which allows coding agents and IDEs to access Greptile’s feedback and organizational rules automatically. The platform also integrates with tools like Jira and Notion to provide context-aware code reviews, and it can detect documentation files such as CLAUDE.md and .cursorrules to personalize its analysis. Each Greptile comment now includes a copyable prompt that developers can use with their coding agents to resolve issues quickly.
Greptile’s mission is to build a scalable, intelligent layer of code validation that keeps pace with modern development workflows. With the launch of Greptile v3 and fresh funding, the company is positioned to help teams ship better software faster and with fewer bugs.
