Brand Intelligence Graph
Company Overview
About Graphite
Graphite is a San Francisco-based developer tools company founded in 2020 by Greg Foster and Tomas Reimers that builds a stacked pull request and code review workflow platform on top of GitHub. The company raised a $52 million Series B in 2023 from Andreessen Horowitz and Index Ventures, with notable engineering team customers including Notion, Linear, Ramp, and Vercel. Graphite introduces "stacked diffs" — a code review methodology popularized by companies like Facebook, Google, and Uber internally — to the broader software engineering community through a Git CLI and GitHub integration.
Business Model & Competitive Advantage
The core problem Graphite solves is the slowdown caused by large, monolithic pull requests that take days to review and block developer productivity. Graphite's workflow encourages engineers to break work into small, focused branches that stack on top of each other, each submitted as a separate PR. The Graphite CLI synchronizes and manages the entire stack, handling rebasing and branch updates automatically when dependencies change. The companion dashboard provides a streamlined code review interface that shows stacked PRs in context, with inline commenting, reviewer assignment, and merge queue management.
Competitive Landscape 2025–2026
Graphite also offers an AI-powered code review feature — Graphite Diamond — that generates review suggestions and catches bugs automatically before human review. This positions Graphite at the intersection of git workflow tooling and AI-assisted code quality. The company competes with GitHub's native PR workflow, GitLab, and Phabricator in the code review space, and with Aviator and Trunk.io in the merge queue and stacked PR niche, differentiating through its polished developer experience, deep GitHub integration, and fast adoption among high-velocity engineering teams.
Open Positions
Reddit Discussions
Frequently Asked Questions
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