Supporting ambitious companies with strategic and operational finance, accounting and HR


It is very reassuring to have the Isosceles HR team on hand with knowledge and resources to help us with any HR issues at any time in the UK and beyond.

Clive Bellmore, CEO, Europe & Africa, Back Office Associates

Isosceles feel like part of our team. They got the HR service up and running very quickly and it’s a real support to have their expertise.

Neil Clark, CEO, PrimeVigilance

Expansion into Europe is a key strategic goal for our company.  With so many decisions to make it is great to have an experienced partner like Isosceles to take the compliance headaches away allowing us to focus on the big commercial decisions

Tim Sherwood, Managing Director of International Business, Lightning Hybrids

Mike and the Isosceles team have been helping us with the decision to exit and preparation over many years so that when the time came we knew it was right. The Isosceles team were with us every step of the way and were a critical part of our successful transaction.

Piers Lea, CEO, LINE Communications

We wanted an experienced partner with a win/win negotiation style. Isosceles managed the seller’s expectation so a mutually realistic valuation could be agreed. They kept the transaction simple and straightforward and are easy to work with.

David McLeman, CEO, Ancoris

I have found the HR team at Isosceles to be extremely reliable.  Their consultants are very knowledgeable and pragmatic in their advice.

Lauren Nagel-Krosney, VP of Human Resources/ Real Capital Analytics Inc.

We have used Isosceles for 12 years. They provide an excellent, critical eye on potential investments. They are commercial and pragmatic and support these investments through non-executive directorships and outsourced accounting.

Jack Murphy, Principal, Cotterford Investments

Isosceles have supported us all the way from our MBO. They offer a rare blend of pragmatic business skills and first-rate finance and accounting expertise.

Robert Dent, CEO, 1st Touch

We have achieved remarkable results in a short period of time. Outsourcing to Isosceles has allowed us to focus on what we do best. We already had a high expectation of them and Isosceles have delivered to this and more.

Kevin Arthur, CEO, Quantasol


Mike O’Connell

CEO and Founder

Mike is responsible for our strategic vision as well as overseeing all aspects of the company’s operation. He is also non-executive director on four client boards (including two tech track 100 companies).

Caroline Aubrey

Account Director

Caroline plays a key role in leading service delivery across the Isosceles’ clients portfolio. She is responsible for strategic finance director support, working with a skilled team of account managers to ensure that our clients’ finance, accounting and HR service needs are always met.

Denise Thorn

Head of HR Services

Denise is responsible for HR service delivery across our complete portfolio of clients. She delivers a day-to-day HR service to our clients and works with their senior teams and executives to support strategic HR planning/people related issues.