Welcome to Harnett Accountants Kingston

Harnett Accountants Kingston & Twickenham – Chartered Accountants – Finance Directors & Business Advisors  Specialists in IT, Legal and HR

Accountants West London - Damien

Harnett Accountants Kingston & Twickenham are an accountancy firm specialising in servicing the needs of growing small to medium sized businesses in West London and beyond.

The first thing we do for a new client is to see what we can do to add to their profits. We pride ourselves on our ability to increase our clients’ profitability – not add to their costs. Based at Kingston Upon Thames, Surrey, we are acutely attuned to the needs of the small and medium sized business. Our fees are always competitive and in most instances more than pay for themselves.

Good accountancy advice pays for itself.

Our practice is owned and managed by Damien Harnett. Damien has been a chartered accountant for over 25 years and founded Harnett Accountants Kingston & Twickenham in 2009. Prior to that he had spent 14 years in public practice, including 4 years as a Senior Manager with Deloitte in the City of London, servicing clients of all sizes and backgrounds.Damien spent 10 years running businesses directly, and because of his wide-ranging experience understands the needs of his clients and possesses the skills and knowledge needed to help move your business in the right direction.

Backed with a team of 4 staff that is experienced and dedicated. Harnett Accountants Kingston & Twickenham are ideally suited to provide book-keeping, year-end accounts, vat, corporation tax, income tax and payroll services to clients.
Authorised by the institute of Chartered Accountants in England and Wales (“ICAEW”) our network of specialists in IT, Legal and HR are on hand to provide the best advice and guidance for your business.

5 reasons to choose Harnett Accountants Kingston & Twickenham

Experience & expertise:

We’ve worked with businesses of all sizes across a wide range of sectors and offer a broad range of Accountancy services. Click here

Actual experience of running companies:

We have actually run companies so in addition to the normal range of accountancy services, provided by other chartered accountancy practices, we can offer you advice and guidance to help you run a more successful business.

A personal service:

All our client work is supervised and managed by our founder, Damien Harnett . Click here to learn more about our founder.


We deal with clients of all sizes in the Small and Medium Enterprise (SME) sector. So no client is too small for us.

Value for Money:

Finally, we offer our clients excellent value for money.