Best Chartered Professional Accountants in Ajax, ON
15 firms listed · 4 in Ajax · 4 open weekends · 14 rated 4.5+
Data verified October 16, 2026
Anna Armata - Chartered Professional Accountant
Grant Johnston AND Associates Inc.
Kevin L. Derbyshire, CPA
Stratos Accounting & Consulting
Kssp Partners
The 15 firms listed for Ajax, 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: Ajax, ON
4 of the 15 firms we list are based in Ajax; the other 11 serve Ajax from towns including Pickering (5 km), Scarborough (18 km) and Markham (18 km). The firms on this page are rated from 4.2 to 5.0 across 1,095 reviews; 10 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the firms on this page are "communication", "attention to detail" and "knowledge". 4 are open on weekends. The services the firms on this page list most often on their websites are bookkeeping (2), payroll (2) and personal & corporate tax (2). Domain records put 3 websites of the firms on this page at ten or more years old; the oldest dates from 2004. 1 offers remote or virtual consultations; 1 offers payment plans; 6 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for all 15 of the firms on this page; all 15 publish a contact page; 11 list a public email and 4 take bookings online. 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.
Do any accounting firms listed for Ajax offer a free scoping call?
No charge for the first meeting is stated by 6 of the 15 firms. Expect it to cover what level of engagement you need, when the firm could schedule it, and what your records look like now. Bring whatever document created the requirement in the first place.