Crosby is an AI-native law firm that delivers legal contract review as a service, blending proprietary artificial intelligence with licensed attorneys. Rather than selling software to existing law firms, Crosby operates as the law firm itself, an emerging model often described as 'services-as-software,' where AI compresses the cost and turnaround of legal work delivered under a professional services relationship.
The company's core workflow is Slack-native: a customer messages Crosby with an attached contract such as an NDA, MSA or other commercial agreement, and typically receives professional legal review and negotiation guidance within about an hour. This speed targets fast-growing technology companies whose sales and procurement cycles are bottlenecked by contract turnaround.
Crosby was founded in 2025 by Ryan Daniels, a lawyer turned founder who serves as CEO, alongside co-founder and CTO John Sarihan. Its early customer base includes high-profile startups such as Cursor, Clay and Listen Labs, reflecting traction among venture-backed companies with heavy contracting volume.
The company has scaled quickly: between its June 2025 seed round and a Series B in April 2026, the total negotiated contract volume handled grew from roughly $30 million to $1 billion. Crosby raised a $20 million Series A from Index Ventures and Bain Capital Ventures, followed by a $60 million Series B led by Lux Capital with Index participating, reaching a valuation of roughly $400 million.
Crosby operates within a rapidly expanding legal-AI market that also includes well-funded software players such as Harvey and Legora. Its differentiation is structural: by being the legal provider rather than a tool, it captures the full services workflow, though this model also exposes it to the operational and regulatory dynamics of running a law firm at scale.