Chartered Certified Accountants

Over 30 Years Experience

Chartered Accountants County Down

Whether you want to form a limited company or just need advice about tax returns, we can help you. At DSM (NI) Ltd we offer a range of services that will benefit your business. Our knowledge and experience allows us to provide you with useful information that will benefit you and you can rest easy that your financial affairs will be taken care of by professionals.

Our growing client base includes tradesmen, businesses in IT, marketing and publishing, doctors, property investors, retailers and even pensioners. If you need help with your financial situation please contact us today for a free quote.

self assessment tax return

Accounts preparation

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VAT Returns

Self-assessment tax return

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Accounts preparation

Management accounts

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book keeping


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VAT returns

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certified chartered accountants


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Eunice Corry  Partner

The Hat Shop, Lisburn 

Dave has been the accountant for The Hat Shop for approximately fifteen years, and I have always found him to be excellent in every aspect of his work, and personality. He organises the salaries each month and calls regularly every quarter to collect everything relating to VAT and sorts that out. Then he is always prompt at doing our end of year figures which is really helpful. Dave never makes you feel that you are a nuisance, asking him silly questions and is such a gentleman in every way. I can honestly say I don’t know how I would have managed without him all this time. 

Craig Anderson Director

HP Capital

"DSM (NI) Ltd provides an exceptional service, and Dave Martin has become an extended part of our team. He is responsive, thorough and shows excellent attention to detail – exactly what you want in accountant. He helps us to meet our statutory requirements, and offers first-class commercial advice whenever it's needed. I have worked with Dave for many years, and will continue to do so long into the future."


Sheila Smyth

Chief Executive, The Right Key (Lisburn) CIC

“I feel very fortunate to have found DSM (NI) Ltd. They provide an excellent, prompt and efficient service and their charges are very reasonable for the expertise that they provide. I have complete confidence in this company and have trusted them with my annual tax returns, annual accounts and various other pieces of work for the past seven years. My Company has enlarged and expanded over the period of time that I have been with DSM (NI) Ltd. I believe much of this is due to the good and sound financial advice and help that I have received from them over the years. I trust them completely and am happy to recommend them. They really are a cut above the rest.”


Vanessa Cook

CEO, Little Ones UK Ltd

I highly recommend DSM (NI) Ltd accounting. The attention to detail, level of service and response time is excellent. Most importantly as a client of DSM (NI) Ltd we always feel valued. Dave takes the time to learn about our company, what we do and how we work. 

William and Isobel Bingham


We have employed Dave as our accountant for over four years now and have found him so be extremely professional in all aspects of his work. He has given us good advice in relation to our business and has been able to answer any queries we have had. He has been both prompt and courteous on every occasion he has called at our house. In addition, he is up to speed with all current financial regulations and will keep confidentiality paramount at all times. We would be delighted to recommend Dave to anyone as he has become a good friend as well as a good accountant.

Whatever you do, we can help you. Call us today on

028 9269 3557 | 07702 063422