

From Zero to 35 employees: What It really takes to scale a modern accounting firm
A Talk by Jordan Vickery and Martin Brennan
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About this Talk
Most firms want to scale. Few do it without breaking something. Martin Brennan, Founder of Onside Accounting, takes you inside the first three years of building his firm—from leaving his job, hiring the first ops person, and pricing for sustainability, through to building a team of 35 people.
This is a brutally honest look at what worked, what didn’t, and what Martin would absolutely never do again. Expect candid insights on how to:
- Know when you're ready to make the leap and start your firm
- Hire key roles that don’t generate revenue (but keep the whole thing moving)
- Build culture, clarity, and communication as you grow fast
- Keep things simple, even as complexity creeps in
- Define values early—and actually stick to them
If you’re building, scaling, or even just thinking about growing your firm, this is one you won’t want to miss.