401(k) TPAs & Recordkeepers in St. Charles County, MO

The top-ranked 401(k) TPAs and recordkeepers serving St. Charles County, MO are Byrne Software, Pension And Retirement Services, Ll and Dairy Employees Local 600. We list 17 401(k) TPAs and recordkeepers serving St. Charles County, MO. 17 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) TPAs & Recordkeepers serving St. Charles County, MO. 17 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked 401(k) TPAs and recordkeepers for St. Charles County

7 more providers serving this area

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Frequently asked questions

How many 401(k) TPAs and recordkeepers serve St. Charles County?

We list 17 401(k) TPAs and recordkeepers serving St. Charles County, MO: 0 based there and 17 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which 401(k) TPAs and recordkeepers serve St. Charles County?

The top-ranked 401(k) TPAs and recordkeepers serving St. Charles County, MO are Byrne Software, Pension And Retirement Services, Ll, Dairy Employees Local 600, Pension Administrators & Consultant and Marsh Mclennon. The full ranked list, with the official records each provider matched, is on this page.

Which 401(k) TPAs and recordkeepers serving St. Charles County are verified against official records?

10 of the top 10 match an active official record: Byrne Software (U.S. Department of Labor), Pension And Retirement Services, Ll (U.S. Department of Labor), Dairy Employees Local 600 (U.S. Department of Labor), Pension Administrators & Consultant (U.S. Department of Labor) and Marsh Mclennon (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.

What does a 401(k) TPA do?

A third-party administrator handles plan compliance: nondiscrimination testing, Form 5500 preparation, contribution limits and plan documents. Recordkeepers track participant accounts; some firms do both.

"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 St. Charles County

Communities served

Lake St. Louis, Dardenne Prairie, Cottleville, Weldon Spring, St. Paul, Foristell, Flint Hill, New Melle, Josephville, West Alton, Portage Des Sioux, Augusta, Defiance, Weldon Spring Heights

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