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Leading UK Chartered Accountants for Businesses, Individuals, Families, and Trustees

A forward-thinking chartered accountancy firm with our clients’ vision at the centre of everything we do.

Established in 1905, our firm has built a strong reputation for professional integrity, technical expertise and trusted advice. We are recognised as a top 50 UK accountancy firm, a leading adviser to private clients and a highly regarded financial planning practice.

As an independent UK firm with international reach, we support clients with both national and cross-border requirements. Through our founder membership of The International Accounting Group, part of TAG Alliances, we provide access to global accounting expertise and legal support in multiple jurisdictions.

Whether you require support with compliance, tax strategy, business growth or wealth planning, our experienced team delivers advice that is clear, considered and built for the future.

Insights

What makes Mercer & Hole special?

We believe it is our culture that sets us apart. But what does culture really mean to us?

It is reflected in our people, the way we work, the relationships we build with our clients and the environment we create within our offices. It shapes how we collaborate, how we advise and how we support one another.

Please click the link to watch our short film, where several of our partners share what our culture means to them and why they value their profession at Mercer & Hole.

Watch our video >

What makes Mercer & Hole special?

Meet our people

It is our people who make us what we are today and our team’s commitment to our clients is evident in everything we do. Our team has great technical expertise but we also possess the ability to explain even the most complex of issues in a practical way.

For any business related matters, tax advice or financial planning, you can directly get in touch with a member of our team.

Meet our people >
Meet our people

Careers

We advise the business community, as well as individuals and families, and they all expect a valued contribution from us.

So, whether you are considering an apprenticeship, a graduate trainee programme, are professionally qualified or are looking for an administrative, secretarial or operational role, if you want to make a difference, we want to hear from you.

Working with us > Find a position >
Careers

Top 100 Best Workplaces 2026

Mercer & Hole is proud to announce that we have been named in the UK’s Top 100 Best Workplaces 2026 list (201-1000 employees).

This prestigious accreditation is awarded by Great Place to Work, widely considered to be one of the most credible authorities on workplace cultures in the UK, whose rigorous methodology is based on confidential employee feedback and independent analysis of organisational culture.

The UK 2026 rankings recognise companies that foster exceptional environments where people feel supported, valued, and able to thrive.

Find out more here >

Top 100 Best Workplaces 2026

Good Business Charter

Mercer & Hole now has the accreditation from the Good Business Charter (GBC) which is an endorsement in recognition of responsible business practices. Accredited organisations include FTSE100 companies, partnerships, SMEs, and charities right through to sole traders. HR Director, Jo Foster said “I am extremely proud that we have received this recognition, it demonstrates our commitment to our team, our clients and our communities in which we all live and work in. We also recognise the need to keep striving to improve the quality of our service to our clients, employees and communities.”

Good Business Charter

Our purpose and values

At Mercer & Hole, our people are our most valuable asset and we have 28 Partners and almost 300 employees.

Our purpose is “to make a meaningful difference to our people, our clients and the world around us.” We believe in the TRUST we have for each other. Our values include Togetherness, Resilience, Understanding, Supportive, and providing an environment to Thrive!

Read More >
Our purpose and values

Our Locations

Chartered Accountants in Rickmansworth

Trinity Court
Church Street
Rickmansworth, Herts
WD3 1RT

Tel: +44 (0) 1923 771010

Chartered Accountants in Milton Keynes

The Pinnacle
170 Midsummer Boulevard
Milton Keynes
MK9 1BP

Tel: +44 (0)1908 605552

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