The Team

Finance professionals who actually like operators.

The people behind Fellow have spent their careers in the books of growing businesses. They don’t just record your numbers — they own them, explain them, and pick up the phone.

Leadership

The faces you’ll actually see.

At Fellow your account isn’t handed off to whoever’s free. Senior people own the relationship from day one — these are the names you’ll know and the people you’ll talk to.

Lexi O’Dea
Senior-level attention

Lexi O’Dea

Founder & CEO

Lexi founded Fellow to rebuild the finance firm around the operators it serves — flat pricing, full-spectrum support, and numbers explained in plain language. She leads every client relationship personally and stays close to the work.

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Trisha Byrnes
Senior-level attention

Trisha Byrnes

Director of Operations

Trisha brings deep expertise in bookkeeping and accounting, and leads the team that does the day-to-day work on your books. She serves as the bridge between clients and the wider team — keeping work on track, communication clear, and making sure nothing falls through the cracks.

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The wider team

Behind every account, a full bench.

Lexi and Trisha are backed by a team of bookkeepers, accountants, and client-success specialists — so the senior attention you get is never a bottleneck. Every member of the team is rigorously vetted before they ever touch a client’s books, and we invest in ongoing training so our standards keep rising and our clients always receive the best service possible.

What we’re like to work with

The kind of finance team you’ll actually want to call.

We like operators

Finance people who actually enjoy the messy, fast-moving reality of running a business — not just the tidy version on the balance sheet.

We explain, not just record

Everyone on the team has the judgment to tell you what the numbers mean and what to do next — not only what happened last month.

We answer

No ticket queues, no disappearing for a week at close. When you reach out, a real person who knows your business replies.

Part of something bigger

The Marrow ecosystem.

Fellow is part of Marrow, a family of operator-first businesses. Fellow clients get access to the wider ecosystem: Workbench for leadership development, Matchstick for hiring, and Rebar for technology — so the finance team you trust can point you to people who work the same way.

Want to meet the team?

The best way to get to know us is a real conversation. Book a Finance Clarity Call and meet the people who’d own your numbers.