Employee Benefit Plan (401k) Auditors Directory

401(k) & Benefit Plan Audit Firms in Cook County, IL

The top-ranked benefit plan audit firms serving Cook County, IL are Plante & Moran, PLLC, Crowe LLP and Legacy Professionals LLP. We list 246 benefit plan audit firms serving Cook County, IL. 30 of the providers shown match an active record from U.S. Department of Labor, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.

401(k) & Benefit Plan Audit Firms serving Cook County, IL. 246 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked benefit plan audit firms for Cook County

20 more providers serving this area

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Frequently asked questions

How many benefit plan audit firms serve Cook County?

We list 246 benefit plan audit firms serving Cook County, IL: 34 based there and 212 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which benefit plan audit firms serve Cook County?

The top-ranked benefit plan audit firms serving Cook County, IL are Plante & Moran, PLLC, Crowe LLP, Legacy Professionals LLP, Miller Cooper & Co., Ltd and Baker Tilly US, LLP. The full ranked list, with the official records each provider matched, is on this page.

Which benefit plan audit firms serving Cook County are verified against official records?

10 of the top 10 match an active official record: Plante & Moran, PLLC (U.S. Department of Labor), Crowe LLP (U.S. Department of Labor), Legacy Professionals LLP (U.S. Department of Labor), Miller Cooper & Co., Ltd (U.S. Department of Labor) and Baker Tilly US, LLP (U.S. Department of Labor), and 5 more on this page. Each badge links to the official record it matched.

How are these companies ranked?

By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.

What does "Verified" mean on this page?

"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.

When does a 401(k) plan need an audit?

Generally when a plan has 100 or more participants with account balances at the start of the plan year; Form 5500 must then include an independent qualified public accountant's report. Confirm with your plan advisor.

"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .

Cities in Cook County

Communities served

Morton Grove, Melrose Park, Rolling Meadows, Elmwood Park, Maywood, Blue Island, Park Forest, South Holland, Dolton, Harvey, Evergreen Park, Brookfield, Homewood, Matteson, Alsip, Lemont, Bellwood, Franklin Park, Palos Hills, Bridgeview, Westchester, Country Club Hills, La Grange, Prospect Heights, Norridge, Hickory Hills, Chicago Ridge, Midlothian, Forest Park, Western Springs, La Grange Park, Lincolnwood, Hazel Crest, Richton Park, Winnetka, Northlake, Justice, Palos Heights, River Forest, Schiller Park, Markham, Summit, Worth, Barrington, Crestwood, Lyons, River Grove, Riverdale, Sauk Village, Steger, Flossmoor, Lynwood, Riverside, Harwood Heights, Glencoe, Glenwood, Hillside, Broadview, Inverness, North Riverside

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