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About Us

Our Ethos

We operate a professional practice offering accounting, taxation and advisory services to individuals, business start-ups, corporates, charities and small to medium-sized enterprises.

Our team of experts have over 50 years experience in accounting, taxation and business matters. We understand how business works and can help you navigate the choppy waters of taxation and financial accounting.

Meet the team


Colm Grogan


Over 35 years experience in accounting and finance with multiple specialist areas of expertise.

Colm qualified as a Certified Public Accountant in 1990 and spent seven years in a medium-sized accounting practice, before moving to United States and working in the turnaround and financial reorganisations business in Philadelphia and New York for two years.

Having returned to Ireland, I was involved in the steel fabrication and construction sub-contracting sector for three years. Grogan and Company was established in 1995. Between 2000 and 2010 Colm held a non-executive role within the software development business, partly as an investor and at director level. I have significant experience within the real estate area, having invested in property both in Ireland and across Europe.

My specialist areas of expertise include real estate investment, software development and technology, construction, manufacturing and service businesses.


Gavin Grogan


Gavin has over 20 years’ experience in accountancy, business and finance.

Having graduated from Trinity College with a BBS (Hons) in 1997 he qualified as a Certified Accountant in 2002. Gavin travelled and worked in Australia and New Zealand in 2002-2003, working in auditing and finance roles.

His specialist areas of expertise include financial accounting, auditing and taxation services to clients in the construction, manufacturing, retail and service industries.

General Questions

Isn’t it just larger businesses that need an accountant?
Of course not, even the smallest business can benefit from advice on ways to minimise tax and manage their accounts. If you prefer, we can handle all of your bookkeeping, regular management accounts and VAT returns on your behalf. The added benefit of us being involved is that having prepared the books it makes the final accounts much easier, saving time and keeping costs down.


Working with an accountant is an added cost to any business. However, the cost should be offset by the value they add. We work closely with our clients to achieve their goals. By getting to know you and your business well, we can tailor what we do specifically for your needs and your strategy, thereby adding value.


We aim to provide you with a fixed fee quote that will cover the areas we will work on together. This will be based on the complexity and volume of the tasks involved. Should any additional assignments come up during the year then we will provide a quote in advance, unless the matter is urgent and it is in your best interests to take action on your behalf. We offer you the chance to pay our fees monthly and avoid having a large invoice in one go, which helps your cashflow. One thing is for sure, if you telephone with a query you won’t get a bill. We want you to let us know how you are.

If you want to keep your own accounting records, then that is fine. If you need some help then we can give you some training. Ensuring that you understand the best way to prepare your accounting information makes it easier for us to complete your accounts or tax return. If we do this for you then you can concentrate on running your business.


Sometimes it helps to have a fresh pair of eyes look at your business. We will listen to you and firstly understand the history of the business and then how you want to develop it. We can carry out a “healthcheck” of the operating systems, management and financial reporting in place; advise on any matters arising and recommend any actions required. All designed to match up with your goals, which we established at the outset.


What our Clients Say

We at Lakeside Window Systems are greatly indebted to Grogan and Company for the highly professional manner in which they have satisfied our book-keeping, taxation, financial and accountancy requirements over the past 25 years. Colm and his staff have provided us with exceptional service and advice in all matters related to our business, ensuring that we are compliant with the most recent revenue regulations. We would highly recommend Grogan and Company to any business looking for a professional and reliable accountancy firm.

-Patrick Nolan, CEO, Lakeside Window Systems Limited, Blessington

We have been clients of Grogan and Company for over 20 years. During this time, we have developed an excellent working relationship with Colm and the team. We are very satisfied with the services provided and have benefited from their expertise in the
areas of auditing, accounting, tax and general business matters. We are very pleased to recommend them to potential clients.

-Gerard Craven, Managing Director, DANA SAC Ireland Limited, Power Transmission Solutions, Co. Kildare

We have been clients of Grogan and Company for over 20 years. During this time we have always found Colm and the team to be very professional, friendly and helpful in all our dealings. We would have no hesitation in recommending the firm to any potential client.

-Ben Duffy, Managing Director, Secure Power Systems Limited

We have been clients of Grogan and Company for over 15 years and would highly recommend them. We have found Colm to be both professional and approachable and he has always given us a great service coupled with sound advice. Colm's professional assistance and guidance has been invaluable to RYCDA CLG who are a voluntary organisation. We are pleased to recommend them to any business or potential clients.

-Jerry Crowley and Gerard Kavanagh, Directors Rathmore Youth and Community Dev. Assoc. C.L.G., Charitable Organisation, Naas

I have been working with Colm and Gavin for over four years now and would highly recommend Grogan and Company.
The team are very professional and are always happy to answer any questions with clear advice and guidance with our haulage business in the construction sector or our private accounts.

-Mairead Murphy, Director, David Boylan Ltd, Haulage Contractors, Blessington

Grogan and Company have been our auditors, accountants and taxation agents for over 20 years. During this time, we have developed an excellent working relationship with Colm and his team. We have benefited from their expertise in the fields of accounting, taxation and the general business advice they have offered. I am very pleased to give them my recommendation.

-Pat McGinn, Director, Huntberry Group, Construction, Naas