Ambrosi Donahue Congdon & Co., P.C.
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 Ambrosi Donahue Congdon & Co., P.C. audit?
Ambrosi Donahue Congdon & Co., P.C. was the independent auditor for 3 retirement plan filings in plan year 2024, with clients in 2 states and territories — the #1,647 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 20-5551179 |
| Retirement plan audits (401(k), 403(b), pension) | 3 |
| All audited filings (incl. welfare plans) | 3 |
| States and territories with clients | 2 |
| National rank by retirement plan volume | #1,647 of 3,956 |
| National rank, all audited filings (league-table basis) | #1,715 of 4,052 |
| Average client size (participants) | 707 |
| Largest client (participants) | 1,652 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Ambrosi Donahue Congdon & Co., P.C. audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Massachusetts | 2 | 66.7% |
| Florida | 1 | 33.3% |
Largest concentration: Massachusetts (2 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Ambrosi Donahue Congdon & Co., P.C. issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 3 | 100.0% |
| Qualified | 0 | 0.0% |
| Disclaimer | 0 | 0.0% |
| 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 Ambrosi Donahue Congdon & Co., P.C.
| Plan sponsor | State | Participants |
|---|---|---|
| Southworth-Milton Inc | MA | 1,652 |
| Fortress Biotech Inc | FL | 293 |
| Southworth-Milton, Inc. | MA | 176 |
About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Ambrosi Donahue Congdon & Co., P.C. (EIN 20-5551179) is named as the plan’s independent qualified public accountant. Ambrosi Donahue Congdon & Co., P.C. 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.