For startups & scaling businesses

Counsel for the moments you can’t take back.

Some decisions divide a company’s life into before and after. Rubicon is the law firm founders bring into the room for those moments: incorporation, first capital, the big partnership, the exit.

The crossings

Every founder knows the feeling. The decision that divides before from after.

  1. Incorporating the company

    The day your idea becomes a company, with founder agreements, equity splits, and a foundation that has to hold for the next decade.

  2. Taking your first outside capital

    The first SAFE, note, or priced round, where the terms you accept set precedents that follow you through every future raise.

  3. Making the hire you hope moves the needle

    Executive offers, equity packages, and the agreements that protect the company while attracting the person who changes its trajectory.

  4. Signing the transformative partnership

    The customer or partner contract big enough to reshape your roadmap, and your risk profile, in a single signature.

  5. Choosing whether to sell, merge, or double down

    The decision every founder eventually faces, where preparation made years earlier determines the options on the table.

We’ve sat in those rooms and on those late-night calls, both as counsel and as founders ourselves. These moments deserve preparation, clear thinking, and someone at your side who has helped other leaders make similarly high-consequence decisions.

Since 2007
In the founder’s corner

Counsel to founders across every market cycle.

0+
Clients served

Supporting high-growth companies at every stage.

100s
Financings and exits closed

From first SAFEs to a $93M Series B.

“Until one is committed, there is hesitancy, the chance to draw back, always ineffectiveness. Concerning all acts of initiative (and creation), there is one elementary truth, the ignorance of which kills countless ideas and splendid plans: that the moment one definitely commits oneself, then Providence moves too. All sorts of things occur to help one that would never otherwise have occurred. A whole stream of events issues from the decision, raising in one’s favour all manner of unforeseen incidents and meetings and material assistance, which no man could have dreamt would have come his way.”
W. H. Murray, The Scottish Himalayan Expedition, 1951

How we work

A modern, business-first way of practicing law.

Tech-native

We work the way your team works: fast, async-friendly, and fluent in the modern tools founders rely on.

Business-first advice

We turn legal complexity into clear commercial decisions instead of long memos or conservative defaults.

Transparent pricing

Clear scopes and candid estimates before work begins, flat fee or hourly, so legal spend never surprises you.

About

A boutique firm built for builders.

Rubicon partners with founders and leadership teams from the earliest days through complex fundraising, commercial scaling, and M&A. Our approach is practical, business-focused, and grounded in two decades of experience closing hundreds of deals across nearly every industry where ambitious companies get built.

About us

What we believe

  • Trust is the real currency.

    We optimize for long-term trust over short-term fees, so you feel safe looping us in early, before small issues become big ones.

  • Entrepreneurship makes the world better.

    Starting something from nothing is an act of courage and creativity. Our work protects and amplifies that effort.

  • Clarity beats complexity.

    Plain language, framed tradeoffs, and a recommendation. “It depends” is the beginning of the conversation, not the end.

  • Creativity within constraints.

    Great legal work isn’t about saying no. It’s about designing structures that let you build boldly while managing real risk.

Ready to cross?

Twenty minutes, no pitch, no clock running. Tell us where your company stands and we’ll tell you what we’d be thinking about if we were in your seat.

Book a free consultation