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Leading chartered accountants in London and the Home Counties

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

We are an approachable firm and we take a great deal of pride in providing a personal, advisory service to you. We take the time to get to know you and to understand your financial affairs in order to present practical solutions for immediate concerns and also to enable planning for the future.

We have been helping clients since 1905, which is a testament to our long-standing reputation. However, our real focus is on the future, both for our clients’ businesses and for creating wealth for the next generation. We are placed in the UK market as a top 40 accountancy firm, one of the top accountancy firms for private client and as a top financial planning company. We are proud to be an independent UK firm with international reach. Through our founder membership of The International Accounting Group (TIAG), part of TAG Alliances, we are able to support our clients across the globe and to provide them with access to legal advice in many jurisdictions through their group of legal firms, TAGLaw.

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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.

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Meet our people


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.

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Our Purpose and Values

At Mercer & Hole, our people are our most valuable asset and we have 24 Partners and over 250 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!

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Our Purpose and Values

Our Locations


21 Lombard Street

Tel: +44 (0)20 7236 2601

St Albans

72 London Road
St Albans, Herts

Tel: +44 (0)1727 869141


Trinity Court,
Church Street,

Tel: +44 (0) 1923 771010

Milton Keynes

The Pinnacle
170 Midsummer Boulevard
Milton Keynes

Tel: +44 (0)1908 605552