Welcome to Quantus Advisory

Quantus Advisory is a Dublin based firm of Accountants who have been advising clients and their businesses for over 30 years

The firm prides itself on offering clients, both small and medium, from all sectors of business. Our clients are nationwide. The firm has a reputation as specialists in the hotel, tourism and leisure sector and is known as a market leader in providing advice to the Licensed Trade. It has unrivalled expertise and experience in this area, and acts for many landmark premises in Dublin and countrywide.

The firm was previously known as L'Estrange & Company until it was rebranded as Quantus Advisory.


It is registered with the Association of Chartered Certified Accountants.

Our offices are conveniently located at College House, 71-73 Rock Road, Blackrock, Co Dublin. We are available outside office hours.

Our Services

Our firm provides a number of various services to all our clients. 

Thinking Of A Change?

Your Accountant plays a vital role in advising you and your business.  The service of any Accountant can vary enormously and there will be occasions when a business owner will have to consider whether a change of Accountant

Starting your own Business

It is essential to get the right advice in advance of setting up a new business. If mistakes are made, it can be difficult, or sometimes impossible to rectify these later. 


All business owners have a legal responsibility to ensure that they keep proper books and records. Many owners do not have either the time or the knowledge to ensure that this important function is maintained

Company Secretarial

Compliance with Company Law legislation is becoming increasingly onerous, and it is an area that company directors rely heavily on their advisors to ensure that they remain compliant. 


Are you ready for PAYE Modernisation?

Employment Law and payroll services have become increasingly difficult, and calculation of payroll deductions is becoming increasingly complex. The arrival of PAYE Modernisation will make this even more time consuming and difficult.


Compliance with Company Law legislation is becoming increasingly onerous, and it is an area that company directors rely heavily on their advisors to ensure that they remain compliant. 

Licensed Trade

Quantus Advisory are specialists in the Licensed Trade and have been providing advice to the trade for over thirty years. We offer a “one-stop shop” for anyone seeking entry into the business

Audit & Accountancy

We are registered with the Institute of Chartered Certified Accountants in Ireland to carry out Audits of Companies. Some Companies may be able to avail of Audit Exemption

Wealth Managment & Retirement Planning

It is quite true that “money makes money” and once the hard work of initially generating a profit has been done, many clients seek our opinion on how and where they can invest their profits. 

Business News

Home prices equal 2007 peak for first time in June – CSO

Residential property prices returned in June to levels not seen since the credit-fuelled peak of 2007, after rising 14.1% on an annual basis, new Central ...
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Households could save €13,000 by switching, changing habits

Households could save over €13,000 a year by switching service providers and changing their spending habits. That’s according to new figures from Irish personal finance ...
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Gardaí warn of increased ransomware attacks on SMEs

The National Cyber Security Centre and the Garda National Cyber Crime Bureau are warning small and medium business owners of an increased threat of ransomware ...
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Practice News

Is your business attracting the right talent?

The Quantus Advisory team believe that when people talk about ‘brand’ they often think solely from a customer perspective. However, a strong 'employer brand' is ...
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Managing change in your business

The Quantus Advisory team are aware that more than 70% of change projects within a business fail. Research findings show that employee engagement is the ...
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Keeping your business cash liquid – the difference between cashflow and profit

The Quantus Advisory team knows that to really understand the difference between generating a profit and managing cash flow, we need to look at what ...
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