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Arceus raises $17M to build a better law firm

Mac, Founder & CEO2 min read
The Arceus wordmark and the line “A better law firm” over a dark aerial river delta

Today we’re introducing Arceus and announcing $17M in funding led by Greycroft, with participation from Craft Ventures, South Park Commons, and others.

The traditional law firm hasn’t changed in decades

A large number of businesses still depend on traditional law firms that haven’t meaningfully changed in decades. The work moves through layers of bureaucracy and manual process, and it’s billed by the hour, a model that rewards time spent rather than better outcomes. The longer the work takes, the more the firm earns. We built Arceus because we believe businesses deserve better than that.

A better law firm

Arceus is a law firm built for the speed of modern business. With AI agents and proprietary software behind them, our attorneys give clients a faster and better experience, and those clients are already seeing the difference. A contract sent in the morning comes back with redlines by the afternoon, at a flat price known upfront and with no surprise invoices.

Here’s what every client gets:

  • Contract reviews in 3–5 hours on average
  • More than 70% lower legal spend than traditional law firms
  • An 8 hour turnaround guarantee, or the review is free
  • Flat-fee pricing with no billable hours
  • A licensed attorney handles every request

And businesses are switching fast. We’ve already reviewed more than 12,000 contracts for some of the fastest growing companies in the world, every one handled by a licensed attorney, and in September alone our customer base quadrupled.

We’re an ambitious team working in person in San Francisco. Our attorneys bring experience from Cooley, Gunderson Dettmer, Wilson Sonsini, White & Case, Apple, Google, and Meta. Our engineers and AI researchers come from Google, Meta, Amazon, Anduril, Robinhood, Figma, GitLab, and LaunchDarkly. Together, we’re building the law firm we always wished we had.

When the incentives finally align

Once a law firm stops billing for time, everything about it can change. Every gain in how we work goes back to our clients as faster turnaround and lower prices. That freedom lets us rethink legal services from first principles, and we’re moving fast, growing from contract review into negotiation, drafting, employment, privacy, and ongoing counsel.

The billable hour built the legal industry, but it won’t build its future. The next great law firm won’t look like the last one. It will be faster, more transparent, and built around the client from day one. We’re building the law firm that will power every business in the world, and if we do our jobs right, the way companies work with their lawyers will look fundamentally different ten years from now.

This funding helps us get there faster, as we grow our team of attorneys, engineers, and AI researchers and expand our services.

We will be the law firm that powers every business in the world.

If you’re looking for a better law firm, you’ve found it. Talk to our team to get started.

And if you want to help build the future of legal, we’re hiring.

— Mac, Founder & CEO