Wisconsin 401(k) plans

Name: Wisconsin 401(k) plans: assets, participants and plan-paid fees
Creator: 401(k) Monitor
License: https://401kmonitor.com/licence/

1,572

Large 401(k) plans headquartered in Wisconsin are in 401(k) Monitor’s published set, holding $159.4B in total, led on headcount by Advocate Aurora Health 401(k) Plan with 83,445 active participants. Computed from DOL Form 5500 filings, plan years 2021–2025.

State means the sponsor’s address on the filing, not where employees work. Our published set covers 57,824 of the 57,824 large plans in the form-year-2024 DOL EFAST2 bulk data, so this is the largest-plan end of Wisconsin, not a census of it.

42 of the biggest 401(k) plans headquartered in Wisconsin

The plans this site submits to search engines come first, then the rest; each group is ranked by active participants, the people still building up a balance. plan years 2021–2025, DOL EFAST2 bulk data. Assets in USD. Every plan links to its full fact page.
#	Plan	City	Active participants	Assets
1	Advocate Aurora Health 401(k) Plan	Milwaukee	83,445	$10.5B
2	Menard, Inc. 401(k) Plan	Eau Claire	53,467	$283.1M
3	Kohl's Inc. Savings Plan	Menomonee Falls	51,956	$2.3B
4	Johnson Controls Retirement Savings And Investment Plan	Green Bay	34,487	$7.2B
5	Kwik Trip Profit Sharing 401(k) Plan	La Crosse	27,129	$1.1B
6	Fiserv 401(k) Savings Plan	Milwaukee	22,809	$5.1B
7	ABC Supply Company Employees' Savings & Retirement Plan	Beloit	19,397	$1.3B
8	Manpowergroup 401(k) Savings Plan	Milwaukee	17,044	$686.1M
9	Schneider National, Inc. 401(k) Savings And Retirement Plan	Green Bay	15,808	$893.4M
10	Ashley Furniture Industries, LLC Profit Sharing 401(k) Plan	Arcadia	15,474	$527.9M
11	Epic Systems Corporation 401(k) Plan	Verona	13,997	$2.9B
12	Oshkosh Corporation And Affiliates Tax-Deferred Investment Plan	Oshkosh	13,938	$2.0B
13	Kimberly-Clark Corporation 401(k) & Profit Sharing Plan	Neenah	11,273	$5.0B
14	American Family 401(k) Plan	Madison	11,004	$2.2B
15	Gundersen Lutheran Employees' Retirement Plan	La Crosse	9,660	$2.9B
16	Cnh Industrial U.S. Retirement Savings Plan	Racine	9,601	$2.3B
17	Marshfield Clinic Salary Reduction Plan	Marshfield	9,444	$1.8B
18	Quad/Graphics Diversified Plan	Sussex	8,513	$2.1B
19	Uline, Inc. Profit Sharing Plan And Trust	Pleasant Prairie	8,509	$968.3M
20	The Northwestern Mutual Employee Savings Plan	Milwaukee	8,160	$2.9B
21	Telephone And Data Systems, Inc. Tax-Deferred Savings Plan	Madison	8,123	$1.8B
22	Rockwell Automation Retirement Savings Plan	Milwaukee	8,097	$3.8B
23	Saputo USA 401(k) Plan	Milwaukee	7,523	$649.9M
24	The Pssi 401(k) Plan & Trust	Kieler	7,067	$30.9M
25	Schreiber Foods, Inc. 401(k) Retirement Savings Plan	Green Bay	6,874	$672.0M
26	Exact Sciences Corporation 401(k) Plan	Madison	6,706	$748.8M
27	Snap-On Incorporated 401(k) Savings Plan	Kenosha	6,599	$983.3M
28	Amcor 401(k) Plan	Oshkosh	6,523	$1.2B
29	Generac Power Systems, Inc. Employees 401(k) Savings Plan	Waukesha	6,175	$343.6M
30	Menasha Corporation 401(k) Retirement Savings Plan	Neenah	5,756	$692.6M
31	Molson Coors Employees' Retirement And Savings Plan	Milwaukee	5,637	$2.1B
32	Rev Group, Inc. 401(k) Retirement Plan	Brookfield	5,529	$349.6M
33	Bellin Health 401(k) Retirement Plan	Green Bay	5,513	$861.9M
34	Baird Profit Sharing & Savings Plan	Milwaukee	5,264	$2.2B
35	Regal Rexnord Retirement Savings Plan	Milwaukee	4,996	$656.4M
36	Kerry Inc. Savings Plan	Beloit	4,981	$604.2M
37	The Marcus Corp 401(k) Retirement Savings Plan	Milwaukee	4,961	$108.7M
38	Fleet Farm 401(k) Plan	Appleton	4,937	$144.4M
39	U.S. Venture 401(k) Retirement Savings Plan	Appleton	4,910	$398.9M
40	A O Smith Retirement Security Plan	Milwaukee	4,854	$617.7M
41	Kohler Co. 401(k) Savings Plan	Kohler	4,707	$263.9M
42	Sentry 401(k) Plan	Stevens Point	4,702	$1.9B

Every Wisconsin plan, by size

The table above is the top of the list. These 8 pages hold all 1,572 plans on file from Wisconsin, split by how many people are in them, each ranked by active participants.

100 to 499 participants · 1,071 plans
Pages1 2 3 4 5
500 to 999 participants · 243 plans
1,000 to 4,999 participants · 203 plans
5,000 or more participants · 55 plans

401(k) fees in Wisconsin vs the national median

Plan-paid administrative cost per participant, plan years 2021–2025 Form 5500 filings. Medians over our published set, not the full universe.
Wisconsin medianAcross the 1,508 Wisconsin plans in our set with usable fee data.	$168.24 per participant
National medianAcross 54,783 published plans with usable fee data.	$122.17 per participant
Difference	$46.07 above the national median

Plan-paid means fees the plan itself reports on Schedule H; many employers pay providers directly, which a filing reports as $0. How to judge your own plan: are your 401(k) fees high?

Wisconsin employers with a match dossier

These Wisconsin-headquartered plans also file an SEC Form 11-K, so the employer’s match formula, vesting and eligibility are extracted on a company page.

Badger Meter, Inc. 401(k) match
Badger Meter Employee Savings And Stock Ownership Plan
Kimberly-Clark Corporation 401(k) match
Kimberly-Clark Corporation 401(k) & Profit Sharing Plan

Useful links

All states
Plan counts, fees and largest plans, state by state.
The largest 401(k) plans in the US
The national ranking these state tables are drawn from.
Average 401(k) fees by plan size
Fees depend on plan size more than on state.

Cite: 401(k) Monitor, “Wisconsin 401(k) plans: largest plans and fees”, computed from DOL EFAST2 Form 5500 bulk data, plan years 2021–2025, published set of 57,824 plans, data as of July 28, 2026.