CIS
“I have been coming here for some time now and I have to say the staff are wonderful.”
Best Accountants near Port Colborne, ON
None of these firms is based in Port Colborne; they work from towns including St. Catharines, Fonthill and Niagara Falls.
24 firms listed · 3 open weekends · 19 rated 4.5+
Data verified October 18, 2026
Michael J. Carroll, CPA Professional Corporation
“He has always been very professional, courteous and patient helping to assist with all of my questions during the year.”
HQ Accounting
“Customer service is outstanding and they're always a great help with my corporate taxes and bookkeeping.”
A2Z Accounting
“We are so impressed by this woman's knowledge and get-to-it to get-it-done attitude!”
R M Bookkeeping & Accounting Services
“Highly recommend if you want someone that knows what they're doing.”
Nuvest Management Services
The 24 firms listed for Port Colborne, ON handle year-end statements, corporate filings and personal returns. Details about sectors and software come from each firm's own website; ratings and quotes come from public reviews.
Area overview: Port Colborne, ON
21 of the 24 firms on this page have a rating, from 3.7 to 5.0 across 822 reviews; 5 have 50 or more reviews and 19 are rated 4.5 or higher. The topics that come up most in reviews of the firms on this page are "communication", "efficient" and "expertise". 3 are open on Saturdays. The services the firms on this page list most often on their websites are accounting services (4), accounting (2), bookkeeping (2) and bookkeeping services (2). 10 have ten or more years of experience, the longest 31 years. 3 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 23 of the firms on this page; 20 publish a contact page; 14 list a public email and 2 take bookings online. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book a consultation.
Which accounting firms listed for Port Colborne describe their services online?
23 of the 24 firms listed here have a website on file. Most set out the sectors they work in and the software they support. Read that first, and remember it is the firm's own account rather than anything checked by someone else.
Leap ACT – Accounting
“They truly have assembled a team of professionals that are solely focussed on ensuring my business grows.”
Niagara Bookkeeping & Tax Services
“She was very courteous and explained everything in detail so that I could understand.”
Marina Lebedev
Derly Valencia, CPA - Tax and Accounting Services
Karnertax - B.D. Karner Professional Corporation
DDL & Co. Chartered Professional Accountants
“I have Tony and Mike doing my accounting for years and certainly I can not recommend them enough!”
Lepore & Co Chartered Professional Accountants
“I have been working with the John and his staff for many years and have come to count on them and have not been disappointed”
Darren Bruce, Cpa, Professional Corporation
“Anytime we have a question or concern, they take the time to discuss and help in any way possible”
FR Professional Accounting Services
“Her mobile bookkeeping and tax services make the entire process easy and efficient.”
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Kingsman Associates
“Best services in the region in tax filling all team members are very cooperative for handling queries.”
Integrated Bookkeeping, Accounting & Tax Services
“They took the time to understand my business and its unique accounting requirements, and developed a tailored plan to ensure that my finances are always in order.”
Dickson Accounting & Tax Services
“They make what can be a stressful process feel simple and manageable, always taking the time to explain everything clearly and ensuring nothing is overlooked”
Book onlineBook
Derry Accounting & Taxation
“I recently had the pleasure of working with Derry Accounting for my small business taxes as well as my personal taxes, and I was very impressed with their services.”
Taylor Roberts Tax & Accounting
“His professionalism is on point and he is such a pleasure to deal with!”
Crawford Smith & Swallow
“If you find yourself in financial despair with no where to turn, ease your mind and book a meeting with these professionals”
SMR CPA
“Shahzad is the most experience chartered accountant we have dealt with in 25 years of my company.”
Geet Tax and Accounting Services
“She is legit and you can trust her and she is really good on what she does.”
LB Accountants
“They are a first class operation.”
Why these companies made our list
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