DDL & Co. Chartered Professional Accountants
“Not often you look forward to tax time but when you work with professionals such as Tony & Eric, year end is a breeze!”
Best Chartered Professional Accountants in St. Catharines, ON
14 firms listed · 8 in St. Catharines · 8 rated 4.5+
Data verified October 16, 2026
Darren Bruce, Cpa, Professional Corporation
“I have been a client of Darren's for 10 years, and have found his service and professional advice to be honest, thorough, and well organized.”
SMR CPA
“Shahzad and his staff paying good attention on our tax concerns, discussing with us nicely without any rush and they all know exactly what they doing.”
Wormald Masse Keen Lopinski
“Steve Sakes is a great choice at WMKL.”
Schoenhals Mike
“He is very accurate , his rates are reasonable and he is just an all around great person to deal with .”
A Cabansay CPA Professional Corporation
“Very happy with her services for personal and business.”
The 14 firms listed for St. Catharines, ON provide designated accounting and assurance services. What each says about its designation and engagement types comes from its own website; ratings and quotes come from public reviews.
Area overview: St. Catharines, ON
8 of the 14 firms we list are based in St. Catharines; the other 6 serve St. Catharines from towns including Niagara Falls (17 km), Thorold (7 km) and Fonthill (15 km). 10 of the firms on this page have a rating, from 3.7 to 5.0 across 221 reviews; 1 has 50 or more reviews and 8 are rated 4.5 or higher. 5 have ten or more years of experience, the longest 25 years. 1 offers remote or virtual consultations; 2 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 13 of the firms on this page; 11 publish a contact page and 10 list a public email. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Why are accounting practices outside St. Catharines shown here?
8 of the 14 firms sit in St. Catharines itself. The others come from other towns within 25 km. For assurance engagements the relevant questions are licensing and industry rather than distance. Distances are straight-line.
McFarland Associates
Gary van Eyk Cma
Wilton White Hill
“Been dealing with them for many years”
Lucy Popoli Professional Corporation CPA
“This is a group of talented number crunches who can advise and support both the individual and small business owner with efficacy!”
Leap ACT – Accounting
“The process was nice and easy, our returns were discussed in detail and understandable.”
Henry Salomons , CPA Professional Corporation
Marina Lebedev
Derly Valencia, CPA - Tax and Accounting Services
Why these companies made our list
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