Anstiss & 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 Anstiss & Co., P.C. audit?

Anstiss & Co., P.C. was the independent auditor for 12 retirement plan filings (14 audited filings including welfare plans) in plan year 2024, with clients in 3 states and territories — the #718 practice nationally by volume.

Practice at a glance

Anstiss & Co., P.C.: plan year 2024 Form 5500 audit engagements
MeasureValue
Firm EIN (as filed)04-2917204
Retirement plan audits (401(k), 403(b), pension)12
All audited filings (incl. welfare plans)14
States and territories with clients3
National rank by retirement plan volume#718 of 3,956
National rank, all audited filings (league-table basis)#674 of 4,052
Average client size (participants)317
Largest client (participants)865

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

Where does Anstiss & Co., P.C. audit plans?

Audited retirement plans by sponsor state, plan year 2024
StatePlans auditedShare of practice
Massachusetts1083.3%
California18.3%
New Hampshire18.3%

Largest concentration: Massachusetts (10 plans). State reflects the plan sponsor’s address, not the firm’s office locations.

What audit opinions does Anstiss & Co., P.C. issue?

Accountant’s opinions on retirement plan filings, plan year 2024
Opinion typeFilingsShare
Unmodified (clean)1083.3%
Qualified00.0%
Disclaimer216.7%
Adverse00.0%

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 Anstiss & Co., P.C.

Largest audited plans by participant count, plan year 2024 (as filed)
Plan sponsorStateParticipants
Community Teamwork Inc.MA865
Making Opportunity Count, Inc.MA612
Greater Lawrence Community Action Council Inc.MA477
Campus Child Care, Inc.MA280
Edison Energy Group, Inc.CA271

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Anstiss & Co., P.C.: ranked #674 for 401(k) plan audits by 401k Audit Scout, 2026

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About this profile

This page is generated from public U.S. Department of Labor Form 5500 filings in which Anstiss & Co., P.C. (EIN 04-2917204) is named as the plan’s independent qualified public accountant. Anstiss & 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.