David Reinus CPA
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24 firms listed · 14 in Westlake Village · 4 open weekends · 22 rated 4.5+
Data verified October 18, 2026
The 24 firms listed for Westlake Village, CA set up, repair and teach accounting software for businesses. What each says about certifications and supported platforms comes from its own website; ratings and quotes come from public reviews.

Of the 24 firms we list here, 14 are in Westlake Village itself and 10 come from towns including Thousand Oaks (3, 5 mi), Calabasas (2, 11 mi) and Simi Valley (1, 10 mi). 22 of the firms on this page have a rating, from 4.6 to 5.0 across 311 reviews; 2 have 50 or more reviews. When clients rate these firms on specific qualities, they most often praise professionalism (100%), responsiveness (86%) and quality (84%). 4 are open on Saturdays. The services the firms on this page list most often on their websites are tax preparation (6), tax planning (5), new business formation (4), back taxes owed (3) and business services (3). 4 have a BBB rating of A or A+. Domain records put 14 websites of the firms on this page at ten or more years old; the oldest dates from 1999. 7 offer payment plans and 8 offer a free initial consultation. We have a website on file for 22 of the firms on this page; 20 publish a contact page; 19 list a public email and 3 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.
8 of the 24 firms state that a first consultation costs nothing. For software work that normally means a short call about what you run and what is broken, not access to your file. A genuine diagnostic takes hours and is usually billed.