# Crimson

Legal AI · London · Seed

Crimson is an AI-native case intelligence platform for litigation and arbitration lawyers, organising case files and answering questions with citations across pleadings, hearing transcripts, letters and other documents. Lawyers can ask natural-language questions such as what the opposing party has said about a given issue and receive cited answers drawn from the case record. Founded in 2025 by former Clifford Chance and WilmerHale litigator Mark Feldner and CTO David Stromback, the London-based company went through Y Combinator's spring 2025 batch. It raised a $2.5M seed round led by Y Combinator, opened a New York office, and says its platform has been used on disputes worth more than $40B.

- Website: https://crimson.law
- Careers: https://crimson.law/careers
- Sector: [Legal AI](https://aistartupslist.co.uk/sector/legal-ai.md)

## Facts

- Funding stage: Seed
- Total raised: $2.5M
- Founded: 2025
- Headquarters: London, UK
- Team size: 1-10

## Notable investors

Y Combinator, Symphony Ventures, Twenty Two Ventures, Amino Capital, Eight Capital, Scale Asia Ventures

## Open UK & remote roles

- [Security Engineer](https://aistartupslist.co.uk/company/crimson/security-engineer-1gthdi.md) · London, GB (posted 2026-08-08)
- [Founding Marketer](https://aistartupslist.co.uk/company/crimson/founding-marketer-1a8div.md) · London, GB (posted 2026-08-08)
- [Litigation Specialist](https://aistartupslist.co.uk/company/crimson/litigation-specialist-hoadue.md) · London, GB (posted 2026-08-08)