Crosby

Crosby

Crosby is an AI-native law firm that pairs custom legal agents with human lawyers to review contracts in hours rather than days. Crosby is a registered law firm carrying malpractice insurance, built around AI contract-review agents supervised by in-house attorneys. As of 2026 customers send agreements by Slack, email, or a contract-management integration and get redlines and risk flags back quickly at a fixed price per document instead of hourly billing. Crosby targets go-to-market and legal-ops teams that need fast turnaround on sales contracts.

Production credibility: New York-based, founded 2024 by Ryan Daniels and John Sarihan. Raised a $60M Series B in March 2026 co-led by Lux Capital and Index Ventures, with Sequoia, Bain Capital Ventures, and angel Elad Gil; total equity financing is roughly $86M across seed, Series A, and Series B. Named customers on its site include Cursor, Clay, Rogo, and Gumloop. It operates as a licensed law firm rather than software alone.

Key Features

• Custom AI contract-review agents that redline and flag risk
• Human lawyer review and sign-off on complex issues
• Fixed per-document pricing by document type, not hourly
• Intake via Slack, email, or contract-management integrations
• Fast, backlog-free turnaround positioned as around the clock
• Operates as a licensed law firm carrying malpractice insurance

Ideal Use Case

Go-to-market and legal-ops teams that need a steady volume of sales contracts and standard agreements reviewed quickly and predictably — handing off the document and getting back redlines, rather than running review software themselves.

How Crosby differentiates

Spellbook is software lawyers run themselves inside Word; Crosby is a full managed law firm — you hand off the contract and get a reviewed result, with attorneys accountable for the work and malpractice insurance behind it. Its agents draft the review and staff lawyers verify it, billed at a fixed price per document rather than by the hour. The trade-off is that it is a service engagement via contact sales, not a self-serve tool.

FAQ

Q: What does Crosby do? A: Crosby reviews contracts using AI agents backed by human lawyers, returning redlines and risk flags fast at a fixed price per document. It is a registered law firm, not just software.

Q: Crosby vs Spellbook? A: Spellbook is software lawyers run themselves inside Word; Crosby is a full managed law firm — you hand off the contract and get a reviewed result, with attorneys accountable for the work.

Q: Who is behind Crosby? A: Crosby was founded in 2024 by Ryan Daniels and John Sarihan and raised a $60M Series B in 2026 co-led by Lux Capital and Index Ventures. It is a licensed New York law firm.

Q: Is Crosby an actual law firm? A: Yes — Crosby is a registered law firm carrying malpractice insurance, where AI agents draft contract reviews and staff lawyers verify them.

tl;dr

Crosby is an AI-native law firm that pairs custom contract-review agents with human lawyers to redline contracts in hours at a fixed price per document. A registered firm with malpractice insurance; $60M Series B co-led by Lux and Index; clients include Cursor and Clay. A managed-firm alternative to Spellbook and Robin AI.