Moss Adams LLP
Employee benefit plan audit practice profile, built from plan year 2024 Form 5500 filings.
Last updated · Source data: plan year 2024 Form 5500 filings
How many 401(k) plans does Moss Adams LLP audit?
Moss Adams LLP was the independent auditor for 83 retirement plan filings (89 audited filings including welfare plans) in plan year 2024, with clients in 16 states and territories — the #137 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 91-0189318 |
| Retirement plan audits (401(k), 403(b), pension) | 83 |
| All audited filings (incl. welfare plans) | 89 |
| States and territories with clients | 16 |
| National rank by retirement plan volume | #137 of 3,956 |
| National rank, all audited filings (league-table basis) | #136 of 4,052 |
| Average client size (participants) | 4,973 |
| Largest client (participants) | 111,954 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Moss Adams LLP audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| California | 42 | 50.6% |
| Washington | 8 | 9.6% |
| Oregon | 6 | 7.2% |
| Hawaii | 4 | 4.8% |
| Texas | 4 | 4.8% |
| Arizona | 3 | 3.6% |
| New York | 3 | 3.6% |
| Colorado | 2 | 2.4% |
| Idaho | 2 | 2.4% |
| New Mexico | 2 | 2.4% |
| Rhode Island | 2 | 2.4% |
| Illinois | 1 | 1.2% |
| Massachusetts | 1 | 1.2% |
| Missouri | 1 | 1.2% |
| New Jersey | 1 | 1.2% |
| Utah | 1 | 1.2% |
Largest concentration: California (42 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Moss Adams LLP issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 77 | 92.8% |
| Qualified | 2 | 2.4% |
| Disclaimer | 4 | 4.8% |
| Adverse | 0 | 0.0% |
As coded on Schedule H. A disclaimer here usually reflects the legacy limited-scope reporting convention (now the ERISA Section 103(a)(3)(C) election), not a failed audit — see the methodology.
Largest plans audited by Moss Adams LLP
| Plan sponsor | State | Participants |
|---|---|---|
| TWDC Enterprises 18 Corp. | CA | 111,954 |
| Uber Technologies, Inc. | CA | 17,233 |
| Gilead Sciences, Inc. | CA | 15,334 |
| Micron Technology, Inc. | ID | 14,277 |
| Servicenow, Inc. | CA | 13,937 |
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<a href="https://401kauditscout.com/firm/moss-adams-llp/"><img src="https://401kauditscout.com/badges/moss-adams-llp.svg" alt="Moss Adams LLP: ranked #136 for 401(k) plan audits by 401k Audit Scout, 2026" width="360" height="80" loading="lazy"></a>Please keep the badge unmodified and linked to this profile. Rank reflects engagement volume as filed, not audit quality — see the methodology.
About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Moss Adams LLP (EIN 91-0189318) is named as the plan’s independent qualified public accountant. Moss Adams LLP did not supply, review, or endorse this information, and inclusion is not a recommendation. Filing data can contain sponsor-entered errors; corrections are welcome via the about page.