The Pulse
Arceus Raises $17 Million to Build an AI-Enabled Law Firm
Arceus says it raised $17 million in funding led by Greycroft, with Craft Ventures, South Park Commons and other investors participating. The company plans to grow its team and expand beyond contract review while keeping licensed attorneys
AI.info Team · Written with AI ·
Arceus puts $17 million behind its law-firm model
Arceus announced on October 1, 2026, that it had raised $17 million in funding led by Greycroft, with participation from Craft Ventures, South Park Commons and other investors. The company describes itself as a law firm built for the speed of modern business, using AI agents and proprietary software to support its attorneys. It says the funding will help it grow its team of attorneys, engineers and AI researchers and expand the services it offers.
The company’s argument for its model starts with how it sees traditional law firms operating: through layers of bureaucracy and manual processes, with hourly billing that it says rewards time spent rather than better outcomes. Arceus says its attorneys, supported by its software and AI agents, are intended to provide a faster client experience. Contract review is its current starting point, and the company says the work is billed at a flat fee rather than by the hour.
“A contract sent in the morning comes back with redlines by the afternoon, at a flat price known upfront and with no surprise invoices.”
Mac, Founder & CEO of Arceus
Contract reviews are the first measure
Arceus lists contract reviews as taking three to five hours on average and says it guarantees an eight-hour turnaround, with the review free if it misses that deadline. It also claims clients spend more than 70% less on legal services than they would at traditional law firms. The company presents these figures as part of what every client gets, alongside flat-fee pricing, no billable hours and a licensed attorney handling every request.
Arceus says it has reviewed more than 12,000 contracts, each handled by a licensed attorney, and that its customer base quadrupled in September. Its announcement describes those customers as some of the fastest-growing companies in the world but does not name them. The company also says it is working in person in San Francisco. Its attorneys, it says, have experience at Cooley, Gunderson Dettmer, Wilson Sonsini, White & Case, Apple, Google and Meta.
The company says its engineers and AI researchers have come from Google, Meta, Amazon, Anduril, Robinhood, Figma, GitLab and LaunchDarkly. Arceus describes the team as combining legal and technical experience to build its law-firm model; its announcement does not provide individual team-member names or a breakdown of the funding.
From redlines to broader legal work
Arceus says it is moving from contract review into negotiation and drafting, as well as employment, privacy and ongoing counsel. It does not give a timetable for those services. The company’s stated plan is to grow its attorney, engineering and AI research teams as it expands its offerings, while continuing to make faster turnaround and lower prices central to its approach.
The announcement frames the shift away from hourly billing as a way to change how the firm works: Arceus says improvements in its processes can go back to clients as faster service and lower prices. Its current offer is more specifically defined around contract reviews, including the turnaround guarantee, flat-fee pricing and attorney handling. The company says it wants to build a law firm that serves businesses broadly, but the announcement focuses on its existing review service, reported contract volume and customer growth as evidence of its early progress.