About us

Hillier Hopkins LLP

Chartered Accountants & Tax Advisers

Call +44 (0)330 024 3200 and discover how we can help you.

From our roots in Beds and Herts, we have expanded across the region and now have offices in London, Milton Keynes and Watford. Our clients include individuals and businesses ranging from small family enterprises to large international companies.

Hillier Hopkins began life in 1933 as Lewis Hillier & Co accountants in Luton, expanding into Hemel Hempstead soon after. Founder John Hillier was joined by Len Hopkins and the firm became Hillier Hopkins & Co. Since then, we have continued to expand thanks to the wonderful people throughout our firm’s history who have shaped its growth and development.

Over the years Hillier Hopkins has trained hundreds of qualified accountants and advised many thousands of individuals, sole traders, partnerships and companies including PLCs and financial institutions. We have a long history of supporting local causes and dedicating time and expertise to local community bodies and professional associations.

Although the firm’s founders have sadly passed away, their legacy lives on in our “friendly expertise” ethos and our commitment to remaining independent and maintaining the highest possible technical, ethical and professional standards.

Find out more about our history

Alex Bottom - Managing Prinicipal for Hillier Hopkins

Alex Bottom, Managing Principal

“Over the years, Hillier Hopkins has expanded steadily in size and geographic reach to become one of the region’s leading independent firms. We are very fortunate  in that throughout our growth we have been able to attract a hugely talented team who continue to deliver our ethos of “friendly expertise”. Our focus is on preserving this ethos and working hard to ensure that our clients prosper above all else.

It’s important to us to support the communities we work in and the world we live in. We have a growing commitment to the UNs Sustainable Development Goals and are working on an environmental policy and initiative to reduce our environmental impact on the world.”

"Nothing is too much trouble"

"I have the best relationship I have ever had with an auditing company - the team are professional but they are incredibly friendly and approachable. Nothing is too much trouble and they are so supportive. Wayne Arrowsmith is superb, he works relentlessly to ensure the audit goes smoothly, and he offers a calming and reassuring voice."
Rich King

"Conscientious and dedicated"

"Hillier Hopkins provide an excellent service. I have always found them to be responsive, conscientious and extremely dedicated."
Javid Khan

"A genuine friend of the business."

"They maintain a very high level of client service which, at a professional level, have made them a trusted adviser and on a personal level, a genuine friend of the business."
RPM London

"Invaluable practical advice"

"We have worked with Meeten Nathwani at Hillier Hopkins for over seven years and, as a small business, have found his responsiveness and good, practical advice invaluable. The experience has been in marked contrast to other professional advisers who tended rather to 'sit on the fence' and outline alternatives rather than then advising on the right course of action."
Keith Evans

"Open and reactive relationship"

"The compliance and reporting support is built around an open and reactive relationship with the directors and accounting team."
Antal International

90 years looking after our world

We have a long tradition of supporting our communities and the world we all inhabit. We continue to implement new measures to decrease our environmental impact. The Principals have adopted an Environmental Policy and our sustainability team of volunteers across the firm have been working hard to implement its recommendations.

To find out more about our environmental activities visit our CSR age

We are proud to support local charities and causes through a number of different events. For the past few years we have been supporting The Pepper Foundation, a small charity which aims to alleviate the suffering of children diagnosed with life-limiting and life-threatening illnesses by funding children’s hospice at home nursing care in Bucks and Herts, and have raised over £17,000 for the charity.

We also held a Lands End to John o’Groats challenge to raise £12,231 for the Cancer Care & Haematology Fund.

We take part in charity days such as Macmillan Coffee Morning and Christmas Jumper Day.


Through sponsorship and donations we support a number of local sports clubs and initiatives.

These include Tabard Rugby Club, Aylesbury Dynamos youth football, Hemel Hempstead Cricket Club, The Lord’s Taverners Ouse Valley Christmas Lunch, Willen Hospice,  The Hospice of St Francis and more.

To find out more about the organisations we support visit our CSR page

The firm supports staff undertaking voluntary work and has organised a number of volunteering teams to help local causes. Teams of staff have been involved in litter picks, tree planting and other activities to support local organisations.

Our volunteering policy allows all of our staff one day per year to participate in volunteering opportunities of their choice.

To find out more about our volunteering activities visit our CSR page

Accountancy Age Mid-Tier Power Index 2022 - Hillier Hopkins Ranked 19

Hillier Hopkins named top 20 firm

The inaugural Accountancy Age Mid-Tier Power Index celebrates excellence in the accountancy profession in four categories – strategic planning, profitability and growth, professional excellence, and people and community.

To be recognised in the top 20 is thanks to the hard work and commitment of the whole Hillier Hopkins team.


Office locations

Watford office

Radius House
51 Clarendon Road
Herts WD17 1HP

T +44 (0)1923 232938
F +44 (0)330 024 3300

140 staff members

London office

45 Pall Mall

T +44 (0)20 7930 7797
F +44 (0)330 024 3300

50 staff members

Milton Keynes office

249 Silbury Boulevard
Milton Keynes

T + 44 (0)1908 232 020
F + 44 (0)330 024 3300

40 staff members

Memberships and associations

The Institute of Chartered Accountants England & Wales

The Institute of Chartered Accountants England & Wales

We are fully subscribed to the training and technical requirements as set down by the Institute of Chartered Accountants in England and Wales (ICAEW) and subject to their periodic QAD quality checks.



In 2020, Hillier Hopkins was the first UK firm to join TGS, a young, dynamic and rapidly growing community of professional firms. Membership of TGS connects us to 68 firms and 4,300 accountants, lawyers and professional staff in 57 countries worldwide.

Investors in People

Investors in People

Hillier Hopkins invests heavily in staff training and has held the “Investor in People” (IIP) accreditation since 1996. We were one of the first accountancy firms in Hertfordshire to be awarded the IIP accreditation and now hold the Gold Accreditation. We also feature on page 33 of the IIP brochure of sustainable success.



We are members of AISMA, the Association of Independent Specialist Medical Accountants, which is a national network of over 75 firms providing expert advice to medical practices, sessional GPs and hospital doctors.

The following brands are part of the Hillier Hopkins family

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