Morrison & Foerster, LLP

Arceus is an AI-native law firm that builds the legal infrastructure layer for modern companies, combining experienced licensed attorneys with intelligent technology to serve late-stage B2B startups. Headquartered in San Francisco near Union Square, the company is reshaping a trillion-dollar market by transforming legal expertise into scalable workflows that address the needs of pre-Series B companies. Backed by Greatcroft following a Series A funding round, Arceus is rapidly expanding with a small, intimate team and recently moved into new office space with plans for additional locations. The company's mission centers on making legal services more accessible and efficient for the modern business landscape.

The company provides software solutions designed for law enforcement, legal professionals, and investigators. Its platform is built to help police departments, prosecutors, attorneys, and investigators quickly find the truth through streamlined access to critical information. By enabling faster and more efficient case management and evidence review, the company's software supports the legal system's core mission of delivering justice.

We’re building the first autonomous insurance group, starting with Morrow, our AI-native commercial insurance brokerage. We help businesses find, compare, and buy insurance across 100+ carriers. Every placement deepens our understanding of businesses, risk, and underwriting. We’re turning that knowledge into an insurance ontology that gives our AI agents the context to reason, apply judgment, and execute insurance workflows autonomously across calls, emails, and carrier portals. Our ambition is to build the most comprehensive intelligence layer in the industry. Over time, we’ll use this foundation to develop and underwrite our own insurance products. Insurance spending represents 12% of U.S. GDP, and we want to go after all of it. We’re backed by C-suite executives at some of the world’s largest insurers, first-check investors in Rippling and Twilio, and a Cloudflare board member.