Macroscope

Macroscope is an AI-powered code review platform founded in 2023 by Kayvon Beykpour (former Twitter head of product and Periscope co-founder), Joseph Bernstein, and Rob Bishop. The platform uses Abstract Syntax Trees (AST) to build a graph-based representation of a codebase, enabling it to detect hard-to-find bugs in pull requests while minimizing false positives through self-learning from developer feedback. Macroscope integrates with GitHub for code review and pulls context from project management tools like Linear and Jira to evaluate PRs against their linked tickets. The company raised a $30 million Series A led by Lightspeed Venture Partners in 2025.