Cosine
Agent43Agent Readiness: 43/100. Above median. Measured by StartupHub.ai. Median 41.Trust87Data Trust: 87/100. Top 25%. Measured by StartupHub.ai. Median 61.UK's sovereign AI coding platform for critical infrastructure.
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About
Cosine is a British AI company that develops and deploys sovereign AI coding platforms. Their platform is designed to support legacy codebases and operate entirely within a customer's own infrastructure, without internet connectivity or reliance on foreign-managed models. This makes it suitable for organizations in defense, nuclear infrastructure, and financial services that have strict data residency and security requirements.
Listed competitors
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Public companies
Cosine and GitHub Copilot both offer AI-powered code generation, but Cosine focuses on autonomous, end-to-end task completion and secure, air-gapped deployments for enterprises, while Copilot is primarily an IDE assistant for inline suggest
Competing product: GitHub Copilot
Cosine and Amazon CodeWhisperer both provide AI coding assistance, but Cosine emphasizes autonomous agents for complex tasks in secure environments, whereas CodeWhisperer focuses on AI-powered code suggestions.
Competing product: Amazon CodeWhisperer
Key facts
- Website
- cosine.sh
- Headquarters
- United Kingdom
- Founded
- 2022
- Employees
- 36
- Total funding
- $5M (Seed)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 19 Dec 2025 | Seed | $2M | |
| 12 Aug 2024 | Seed | $3M | Soma Capital |
| 1 Nov 2022 | Seed | $500K |
Tech stack
Detected on cosine.sh, last scanned 20 Oct 2026. Run your own scan
- Frontend
- Next.js, Tailwind CSS
- Payments
- Stripe
- CDN
- Cloudflare, Vercel
- Email provider
- Google Workspace
- Affiliate program
- Self-hosted affiliate
Cosine scores 64. Does yours?
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Frequently asked
Is Cosine trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Cosine is 87 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Cosine raised?
Cosine has raised a total of $5M in funding. The most recent round on record is Seed.
How many employees does Cosine have?
Cosine has approximately 36 people on record.
Does Cosine have an affiliate program?
Yes, Cosine has an affiliate program. The program runs on Self-hosted affiliate. Register here: cosine.sh/affiliates
Financial Services
British multinational telecommunications company providing fixed-line, broadband, and mobile services.
Telecommunications
Confirmed customers of Cosine.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Cosine
