401(k) Audit Firms in Washington, D.C.

Last updated September 6, 2026 · Source data: plan year 2024 Form 5500 filings

Who audits the most 401(k) plans in Washington, D.C.?

Calibre CPA Group, PLLC audited 53 Washington, D.C. plans in plan year 2024, the most of any firm. Overall, 149 firms audited 682 plans sponsored in Washington, D.C.; the median audited plan had 300 participants.

Most active in Washington, D.C.

Calibre CPA Group, PLLC

53Washington, D.C. plans audited

Top audit firms for Washington, D.C. plans

Firms ranked by audited retirement plan filings sponsored in Washington, D.C., plan year 2024
#	Firm	DC plans audited
1	Calibre CPA Group, PLLC	53
2	BDO USA, P.C.	43
3	CliftonLarsonAllen LLP	40
4	Gelman Rosenberg & Freedman	34
5	Baker Tilly US, LLP	31
6	Aprio LLP	31
7	CBIZ CPAS P.C.	25
8	Caron & Bletzer, PLLC	24
9	CohnReznick LLP	24
10	RSM US LLP	23
11	Grant Thornton LLP	20
12	Forvis Mazars, LLP	15
13	WithumSmith+Brown, PC	14
14	SB & Company, LLC	13
15	UHY LLP	10
16	Ernst & Young LLP	10
17	Councilor, Buchanan & Mitchell, PC	9
18	JM&M	9
19	PKF O'Connor Davies, LLP	8
20	Smith & Howard, PC	8
21	Pickett, Chaney & McMullen LLP	7
22	Citrin Cooperman & Company, LLP	6
23	Crowe LLP	6
24	Johnson Lambert LLP	6
25	PBMares, LLP	6

Top 25 firms shown. Counts are retirement plan filings (401(k), 403(b), profit-sharing, and pension) whose sponsor address is in Washington, D.C..

Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.

Washington, D.C. plan audit market at a glance

Washington, D.C. employee benefit plan audits, plan year 2024
Measure	Value
Audited plans sponsored in Washington, D.C.	682
Audit firms with at least one DC engagement	149
Median audited plan size (participants)	300
Share of all U.S. audited plans	0.9%

Choosing an audit firm in Washington, D.C.

Engagement volume is the most objective public signal of employee benefit plan audit experience: the Department of Labor’s audit quality study found deficiency rates of 76% among CPAs performing one or two plan audits a year, versus 12% at the largest practices. The table above shows which firms do this work in Washington, D.C. at real volume.

Beyond volume, ask candidate firms about AICPA Employee Benefit Plan Audit Quality Center membership, who staffs the fieldwork, experience with your recordkeeper and payroll systems, and whether the fee assumes an ERISA Section 103(a)(3)(C) election. A Washington, D.C. address is not required — plan audits are performed remotely under the same national standards — but local presence can simplify scheduling and walkthroughs.