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24 firms listed · all 24 in Thornhill · 1 open 24/7 · 11 open weekends · 22 rated 4.5+
Data verified October 21, 2026
The 24 firms listed for Thornhill, 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.
All 24 firms we list here are in Thornhill itself. We have 41 firms in Thornhill on file; this page shows the highest-rated 24. The firms on this page are rated from 4.0 to 5.0 across 817 reviews; 7 have 50 or more reviews and 22 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (100%), responsiveness (66%) and value (58%). The topics that come up most in reviews of the firms on this page are "efficient", "patient" and "attention to detail". 1 is open around the clock; 11 are open on Saturdays and 5 on Sundays. The services the firms on this page list most often on their websites are accounting and bookkeeping (2), corporate tax (2) and personal tax (2). 1 lists staff certifications (CDFA). 14 have ten or more years of experience, the longest 26 years. 1 offers urgent consultations; 2 offer a free initial consultation and 2 are family- or locally-owned. We have a website on file for all 24 of the firms on this page; 23 publish a contact page; 23 list a public email and 3 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.
All 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.
- “I highly recommend Toranj Accounting. The service is second to none and the quality of work is consistently outstanding, exceeding my expectations every time.” — client of Toranj Accounting Services
- “We feel confident and secure knowing that we have such a knowledgeable and dependable professional taking care of our accounting and tax needs.” — client of Master Accounting & Tax Services
- “Despite having some unique accounting needs, the team at Accounting Plus has consistently delivered excellent, professional service and at a very reasonable cost.” — client of Accounting Plus Financial Services
- “I can't recommend Azmon accounting enough! Their expertise is unmatched, and their proactive approach has been a game-changer for my business.” — client of Azmon Accounting
- “Professional service with fair pricing. Will definitely go back for all personal and business accounting needs.” — client of Harmonic Accounting
Excerpts from public reviews of the firms listed on this page.
