Black Box Consultancy Services
- Bookkeeping
2 of these firms are based in Owen Sound; the others serve Owen Sound from towns including Collingwood (57 km), Orangeville (97 km) and Markdale (36 km).
4 open weekends · 20 rated 4.5+
Data verified October 16, 2026
The 24 firms listed for Owen Sound, 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.

20 of the 24 firms on this page have a rating, from 4.7 to 5.0 across 548 reviews; 5 have 50 or more reviews. The topics that come up most in reviews of the firms on this page are "communication", "knowledge" and "patient". 4 are open on Saturdays and 1 on Sundays. Domain records put 6 websites of the firms on this page at ten or more years old; the oldest dates from 1999. 2 offer a free initial consultation; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 23 of the firms on this page; 20 publish a contact page; 20 list a public email and 2 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.
2 of the 24 firms are in Owen Sound itself, and the rest come from other towns within 135 km. What matters more than the drive is whether the firm knows your province and your sector. Distances are straight-line.