Companies that use Cursor in a Open Source Repo

Source: Analysis of Linkedin bios of 3,538 companies that use Cursor in a Open Source Repo

I noticed these companies span an incredibly diverse range of what they actually build and sell. There's a strong presence of software development shops and IT consultancies building custom solutions for clients (7Span, Acueducto, Boldare), blockchain and Web3 infrastructure providers (1inch Network, Berachain, Akash Network), developer tooling and platforms (Activepieces, Attio, Apollo.io), and AI-focused companies (AiTech, Bahasa.ai, Bayseian). Many are creating technical infrastructure, whether that's data platforms, automation tools, or specialized vertical software.

These are predominantly early to mid-stage companies. The majority have small to medium team sizes (11-50 or 51-200 employees), and many explicitly mention funding rounds (Seed, Series A-D). I saw multiple Y Combinator companies and pre-seed startups alongside a few larger enterprises like Amadeus with 10,000+ employees. The funding stages range from bootstrapped to Series D, but most cluster in the Seed to Series B range, suggesting growth-stage companies actively scaling.

Source: Analysis of tech stacks from 3,538 companies that use Cursor in a Open Source Repo

I noticed that companies using Cursor in open source repositories are distinctly engineering-first organizations that have embraced AI-assisted development as a core competency. The presence of Claude Code appearing 3,129 times more frequently tells me these are teams that have gone all-in on AI coding tools, not just dabbling. Combined with incident management and operational tools, this suggests venture-backed startups building technical products where engineering velocity is a competitive advantage.

The pairing of Cursor with Incident.io (685 times more likely) is particularly revealing. These companies are shipping code fast enough that they need sophisticated incident management, which means they're running production systems at scale with real users. The appearance of Pylon, a customer support tool for technical products, reinforces this. They're building for developers or technical audiences who expect both rapid iteration and high reliability. Golinks showing up 401 times more frequently suggests these teams have reached a size where internal knowledge management matters, typically 30-50 people or more, but they're using lightweight tools that don't slow them down.

The full stack reveals product-led growth companies in the Series A to Series B range. They're not using heavy enterprise sales tools. Instead, they're investing in engineering productivity (Cursor, Claude Code), operational excellence (Incident.io, Panther for security monitoring), and developer experience. These companies likely offer API-first products or developer tools themselves, which explains why they maintain active open source repositories. They understand their buyers are technical and will evaluate their engineering practices.