Sigma Accountants
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24 companies listed · 9 in Columbia · 6 open weekends · 19 rated 4.5+ · 1 shows a license
Data verified October 21, 2026
The 24 companies listed for Columbia, MD keep books, reconcile accounts and close the month for businesses. What each says about its packages and software comes from its own website; ratings and quotes come from public reviews.

9 of the 24 companies we list are based in Columbia; the other 15 serve Columbia from towns including Baltimore (15 mi), Laurel (7 mi) and Greenbelt (13 mi). 21 of the companies on this page have a rating, from 4.1 to 5.0 across 1,093 reviews; 5 have 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these companies on specific qualities, they most often praise professionalism (96%), responsiveness (91%) and quality (87%). The topics that come up most in reviews of the companies on this page are "knowledge", "patient" and "efficient". 6 are open on Saturdays and 1 on Sundays. The services the companies on this page list most often on their websites are bookkeeping services (3), bookkeeping (2), business tax preparation (2), individual tax preparation (2) and irs representation (2). 1 shows a license on its website and 9 have a BBB rating of A or A+. Domain records put 18 websites of the companies on this page at ten or more years old; the oldest dates from 1998. 6 offer a free initial consultation. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
7 of the 24 companies take inquiries or appointment requests through their own website. A company without that option works by phone or email. Whichever you use, say what software you run and roughly how many transactions a month you have. It is what decides the price.