Onside Accounting and Onside Tax donate a share of profit to charities chosen by their employees
Onside Accounting

Meet the people behind Onside

We’re a collaborative team of startup-focused accountants, tax specialists and finance experts who partner with ambitious founders through every stage of their growth journey.

From incorporation to running payroll, managing funding rounds, share options, global expansion and exit strategies, our team scales with your business in ways most accountants can’t.

We combine deep technical expertise with a flexible, remote-first approach, delivering advice when you need it from people who genuinely care about your business and its success.

Financial expertise that grows with you every step of the way.

Our Management Team

Martin Brennan

Founder & CEO

Ryan Snape

Managing Director,
Onside Tax

Laura Smith

Accounting Partner

Mike Scott

Commercial Director

Molly Jenkins

Head of Finance and Operations

Linda Lipkova

Head of Accounting

Nicole Third

Head of Tax

Sam McMillen

Marketing Manager

Our Accountants

Hannah Gillan

Senior Client Director

Sophie Hanks

Client Director

Will Taylor

Client Director

Alisha Parker

Senior Finance Manager

Seamus Duffy

Senior Finance Manager

Alisha Patel

Finance Manager

Audrone Urbonaite-Melas

Finance Manager

Sophie Stansbie

Finance Manager

Stefanie Porter

Finance Manager

Connor Atkins

Senior Finance Associate

Noor Choudhury

Senior Finance Associate

Olivia Harris

Senior Finance Associate

William Grabham

Senior Finance Associate

Lyden Masella

Finance Associate

Our Tax Advisors

Robert Hadden

Personal Tax Manager

Jemma Mason

R&D Tax Associate

Lygia Bird

R&D Tax Associate

Jess Grief

R&D Tax Associate

CFO Services

Imran Chagpar

Fractional CFO

Marcin Tendera

Fractional Finance Manager
Onside Accounting is a trading name of Onside Accounting Limited which is registered in England & Wales under Company Registration No. 13428300