Vector Legal

The premier AI-native law firm & legal operating system for Startups.

Y CombinatorWinter 2026ActiveB2BLegalArtificial IntelligenceLegalLegalTechOperations

What they do

Problem

Startups need high-quality legal support for formation, fundraising, contracts, and corporate changes but Big Law is too slow and expensive.

Solution

An AI-native law firm and legal operating system combining experienced attorneys/paralegals with custom-built AI to deliver startup legal services more efficiently and at lower cost.

Who it's for

Venture-backed and high-growth startups needing ongoing corporate, financing, and commercial legal services.

Founders

Mitch Duncombe

Founder

Building Vector Legal, an AI-native law firm for startups. Former startup lawyer at Fenwick and YC's in-house legal team, and high school math curriculum director / basketball coach.

LinkedIn · X

Keenan Venuti

Founder/CTO

Founder/CTO @ Vector Legal, a hybrid AI law firm + legal tech platform for Startups Former Staff AI SWE @ Ironclad (S15) M.S. Northwestern, B.A. Harvard keenan.venuti.org