From Python refactoring to full AI code review
Sourcery was founded in London in 2018 by Brendan Maginnis, Nicholas Thapen, and Tim Gilboy — years before the LLM wave. It began as an automated refactoring engine for Python that cleaned up code as developers wrote it, building a loyal following of hundreds of thousands of developers. As language models matured, Sourcery evolved into a general-purpose AI code review platform.
Platform
Today Sourcery reviews pull requests across 30+ programming languages, identifying bugs, security issues, and deviations from team code standards, with instant feedback that arrives before a human reviewer even opens the diff. Continuous security scanning watches repositories for vulnerabilities, and team analytics track review throughput and code health over time. It integrates with GitHub and GitLab, plus VS Code and JetBrains IDEs, and is designed to complement AI coding agents by reviewing the growing volume of machine-generated code. Enterprise controls include no training on customer code, SOC 2 certification, GDPR compliance, and custom LLM endpoints.
Funding
Sourcery raised a $1.75M seed round in January 2022 led by Forward Partners, with Runa Capital, Techstars, and Angel Invest Ventures participating — roughly $1.9M raised in total. Customers include developers at HelloFresh, Cisco, and Red Hat.