Here's how our clients describe McCay Duff, what it's like working with us and how we help them succeed.

Pierre Vachon

AMS Imaging Inc.

They seem to be always looking for solutions for me ...

I’ve been using the services of McCay Duff for several years now. They don’t just offer advice when I need it—they seem to be always looking for solutions for me, sometimes even before I know I need them. This is incredibly valuable to my small business.

David Stevenson

Stevenson Trinka Dentistry

They don’t try to be what they are not ...

For quite a number of reasons, we have been McCay Duff clients for over two decades. One of the things we most like about the team is what they don’t do. They don’t try to be what they are not. When other professionals are needed—lawyers, financial planners and others—they don’t try to get involved beyond their areas of expertise. Because they want the very best for us, they know when to speak up and when to refer us to others. They probably don’t realize how much we appreciate that.

Linda Andrews

Erwin's Automotion Inc.

My experience with the team at McCay Duff can be summed up in one word:  professional ...

Everything they do is with our interests in mind. (Even when I used old-school bookkeeping practices, they’d just smile, graciously accept my bundle of documents and perform their magic.) My trust in them is complete because in more than 10 years, they have never let us down. If you need great advice and a great accountant, my advice to you is to call McCay Duff.

Dr. Alfred Sisto

Community Pediatrics
Children’s Hospital of Eastern Ottawa, Civic and QCH hospitals

They are highly responsive to my questions and needs ...

Since 1990, the accountants at McCay Duff have been providing me with expert advice on everything from taxes to investing. In my opinion, their experience, knowledge and skills are second to none. They are professional in all their dealings and highly responsive to my questions and needs. It’s my pleasure to recommend them.

Dr. Juan Bass

Chief , Department of Surgery
Children’s Hospital of Eastern Ontario

They relieve the stress of having to deal in areas that are beyond my expertise ...

I would highly recommend the accounting Firm of McCay Duff. I have been using the Firm’s services for almost 30 years and have always found the team to be responsive, professional and, as importantly, able to relieve the stress of having to deal in areas—notably taxes—that are beyond my areas of expertise. I truly appreciate the Firm's skills, knowledge and capabilities and often wonder where I would be without them.

John Southwell

Carlgate Development Ltd.

I’ve been fortunate to have found considerable success in my business ...

McCay Duff has been offering good advice almost since the beginning. From the early days of our relationship, we’ve always gotten along well. One of the main reasons, I think, is mutual respect. I would strongly recommend the Firm to anyone looking for highly professional accountants.

Michael G. Buckley

President & CEO

Without exception, I have always been satisfied ...

I would highly recommend McCay Duff, the accounting Firm I have been using for many years. As our company has grown, so too, have the services I’ve used from there. Without exception, I have always been satisfied and would not hesitate to recommend McCay Duff to anyone looking for knowledgeable, skillful accounting professionals.

Tom Brockett

Chief Accountant
Knights of Columbus

Always timely, thorough and efficient ...

The auditing work they do for our Canadian operations is second to none—always timely, thorough and efficient. More than that, however, the staff and partners at McCay Duff provided a high degree of insight and expertise when we adopted International Financial Reporting Standards. We are very happy with their work and highly recommend them to anyone in need of a chartered accountant, in particular, and financial advice, in general.

Chris Gillin

Gillin Engineering and Construction Ltd.

Advice comes quickly and is always right on the money ...

The relationship between my company and McCay Duff goes back decades. You expect professionalism, of course, and they deliver. But more than that, despite being a big Firm, they make us feel like we are their only clients. Advice comes quickly and is always right on the money. Literally.

Dr. D. Stephen Brown

Vascular Surgeon

The people there have proven to be very skilled at saving me money ...

When I first moved from Ontario to New Brunswick, I looked at several local accounting Firms for tax advice for both my personal and professional accounts. I knew McCay Duff was among the very best as my father, also a surgeon, had used the company for many years—I believe he had been one of Mr. Duff’s first clients. I wanted the same competence in my accountants so I chose to keep my business at McCay Duff. It was a good decision for me. Apart from the friendly yet professional demeanour of all the staff I have encountered over the past 25 years, I truly felt like they had my best interest at heart. When I incorporated my practice they were seamless in their integration with my legal team as well. The people there have proven to be very skilled at saving me money.

Mark Kovalsky

Voice Innovate Corporation

Sound and reasoned financial advice, the kind that lets me sleep well at night ...

McCay Duff has been at my side for more than 20 years, through good times and bad. Not only do they provide great accounting services, but I know I can count on them to give me sound and reasoned financial advice, the kind that lets me sleep well at night.

Michael Nolan

Friesen, Kaye and Associates

Extraordinary people who have been instrumental in our success ...

McCay Duff comprises a tremendous group of extraordinary people who have been, without question, instrumental in our success. They have been at my side since the day I purchased the company in the mid-80s and have been involved in every major financial decision since. I can’t imagine doing this without them.

Scroll to Top