Louis Plung & Company, 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 Louis Plung & Company, LLP audit?
Louis Plung & Company, LLP was the independent auditor for 29 retirement plan filings in plan year 2024, with clients in 7 states and territories — the #382 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 25-1637458 |
| Retirement plan audits (401(k), 403(b), pension) | 29 |
| All audited filings (incl. welfare plans) | 29 |
| States and territories with clients | 7 |
| National rank by retirement plan volume | #382 of 3,956 |
| National rank, all audited filings (league-table basis) | #393 of 4,052 |
| Average client size (participants) | 501 |
| Largest client (participants) | 1,863 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Louis Plung & Company, LLP audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Pennsylvania | 21 | 72.4% |
| Texas | 2 | 6.9% |
| California | 1 | 3.4% |
| Florida | 1 | 3.4% |
| New York | 1 | 3.4% |
| Ohio | 1 | 3.4% |
| West Virginia | 1 | 3.4% |
Largest concentration: Pennsylvania (21 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Louis Plung & Company, LLP issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 28 | 96.6% |
| Qualified | 1 | 3.4% |
| 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 Louis Plung & Company, LLP
| Plan sponsor | State | Participants |
|---|---|---|
| Dedicated Nursing Associates, Inc | PA | 1,863 |
| Aaa East Central | PA | 1,653 |
| Scott Electric Company | PA | 1,093 |
| Hillandale Gettysburg, LP | PA | 1,011 |
| Duolingo, Inc. | PA | 844 |
Are you Louis Plung & Company, LLP? Add your ranking badge
Firms in this directory may display their standing on their own site. The badge reads “Ranked #393” — Louis Plung & Company, LLP’s position among 4,052 U.S. firms by audited Form 5500 filings in plan year 2024, the same ordering as the national rankings. It is a static SVG served from this domain, links back to this profile, and is regenerated with every data refresh, so the number stays current without any change on your end.
Copy this HTML into your website:
<a href="https://401kauditscout.com/firm/louis-plung-and-company-llp/"><img src="https://401kauditscout.com/badges/louis-plung-and-company-llp.svg" alt="Louis Plung & Company, LLP: ranked #393 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 Louis Plung & Company, LLP (EIN 25-1637458) is named as the plan’s independent qualified public accountant. Louis Plung & Company, 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.