401(k) & Benefit Plan Audit Firms in Contra Costa County, CA

The top-ranked benefit plan audit firms serving Contra Costa County, CA are Baker Tilly US, LLP, Withumsmith+brown, PC and Armanino LLP. We list 92 benefit plan audit firms serving Contra Costa County, CA. 30 of the providers shown match an active record from U.S. Department of Labor, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.

401(k) & Benefit Plan Audit Firms serving Contra Costa County, CA. 92 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked benefit plan audit firms for Contra Costa County

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Frequently asked questions

How many benefit plan audit firms serve Contra Costa County?

We list 92 benefit plan audit firms serving Contra Costa County, CA: 11 based there and 81 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which benefit plan audit firms serve Contra Costa County?

The top-ranked benefit plan audit firms serving Contra Costa County, CA are Baker Tilly US, LLP, Withumsmith+brown, PC, Armanino LLP, Bpm LLP and Eide Bailly LLP. The full ranked list, with the official records each provider matched, is on this page.

Which benefit plan audit firms serving Contra Costa County are verified against official records?

10 of the top 10 match an active official record: Baker Tilly US, LLP (U.S. Department of Labor), Withumsmith+brown, PC (U.S. Department of Labor), Armanino LLP (U.S. Department of Labor), Bpm LLP (U.S. Department of Labor) and Eide Bailly LLP (U.S. Department of Labor), and 5 more on this page. Each badge links to the official record it matched.

How are these companies ranked?

By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.

What does "Verified" mean on this page?

"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.

When does a 401(k) plan need an audit?

Generally when a plan has 100 or more participants with account balances at the start of the plan year; Form 5500 must then include an independent qualified public accountant's report. Confirm with your plan advisor.

"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .

Cities in Contra Costa County

Communities served

Bay Point, Orinda, Pinole, Moraga, El Sobrante, Discovery Bay, Alamo, Clayton, Rodeo, Blackhawk, Contra Costa Centre, Saranap, Kensington, Tara Hills, Camino Tassajara, Vine Hill, Pacheco, North Richmond, San Miguel, East Richmond Heights, Reliez Valley, Crockett, Montalvin Manor, Rollingwood, Mountain View, Bethel Island, Bayview, Knightsen, Norris Canyon, Acalanes Ridge, Castle Hill, Diablo, Byron, Shell Ridge, Alhambra Valley, Clyde, North Gate, Port Costa

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