Multiple plan years M sponsor index DOL Form 5500

Plans by Sponsor: M

ERISA Form 5500 plan record drawn from DOL EBSA, verify with linked source filings below.

1,003 retirement plans with sponsors starting with "M"

How can I browse retirement plans by sponsor?

This letter index groups 1,003 retirement plans whose sponsor name begins with the letter "M". The full browse index covers 16,325 plans across all 26 letters of the alphabet. Results are paginated 50 per page, and you are currently viewing page 10 of 21. Each listing links to a detail page with the plan's Form 5500 fields, plan type, total assets, participant count, sponsor EIN, state of record, and filing status for that plan's most recently filed plan year (listings on this index span multiple plan years, sortable below).

Sort controls above let you reorder the list by sponsor name (default alphabetical), participant count (largest first), or plan year. The participant column shows total covered workers, a mix of active employees, separated employees with remaining balances, and retirees receiving benefits. Sponsors are listed as they appear on the Form 5500 filing, which may differ from the public-facing corporate brand; a single holding company can sponsor multiple plans, and large employers may also appear under subsidiary names.

All data on this page comes from U.S. Department of Labor Form 5500 annual returns released through EFAST2. The dataset covers plans with 100+ participants plus smaller plans that file voluntarily. Figures reflect a single plan-year snapshot and fluctuate with market performance, contributions, and benefit payouts. This browse index is informational only, summarizing public regulatory filings for research and educational purposes, and is not retirement, tax, legal, or financial advice. Before relying on any figure to evaluate an employer's plan or make retirement decisions, verify the underlying filing directly on EFAST2 and consult a qualified professional.

Showing 451–500 of 1,003

Plan Participants
Medtronic Retirement Plan for Certain Participants and Beneficiaries
Medtronic, Inc.
7,184
Medtronic Retirement Plan
Medtronic, Inc.
990
Meduit, LLC 401(k) Retirement Plan
Meduit. LLC Ilk/a Receivables
1,439
Medvet, Inc. Employees Savings Trust
Medvet, Inc.
3,315
Mega International, LLC 401(k) Plan
Mega International, LLC
1,045
Non-Union Employees 401(k) Plan
Megalodon Midco, LLC
839
Mallinckrodt Pharmaceuticals Retirement Savings and Investment Plan
Meh, Inc.
2,480
Meharry Medical College Defined Contribution Plan
Meharry Medical College
1,883
Meherrin Agricultural & Chemical Company Retirement Savings Plan
Meherrin Agricultural & Chemical Company
1,750
Mei Rigging and Crating LLC 401(k) Profit Sharing Plan and Trust
Mei Rigging & Crating, LLC
1,124
Meijer Omp Pension Plan
Meijer, Inc.
4,331
Meijer 401(k) Retirement Plan I
Meijer, Inc.
31,705
Meijer 401(k) Retirement Plan II
Meijer, Inc.
41,621
Meijer Hourly Pension Plan
Meijer, Inc.
6,378
Melaleuca, Inc. 401(k) Savings Plan and Trust
Melaleuca, Inc.
2,232
Melgar Facility Maintenance, LLC D/B/a Mfm Industries Retirement Plan
Melgar Facility Maintenance LLC Dba Mfm Industries
1,281
Members 1st Federal Credit Union 401(k) Savings Plan
Members 1st Federal Credit Union
1,227
Members 401(k) Advantage
Members Benefit Corp.
2,914
Memorialcare 401(k) Plan
Memorial Health Services
7,188
Memorialcare Retirement Plan
Memorial Health Services
4,491
Memorial Health System Defined Contribution Retirement Savings Plan
Memorial Health System
7,526
Memorial Health System 403(b) Plan
Memorial Health System
1,499
Memorial Retirement Plan
Memorial Healthcare
1,464
Memorial Hermann Health System 401(k) Retirement Savings Plan and Trust
Memorial Hermann Health System
213
Memorial Hermann Health System Employees' Retirement Savings Plan
Memorial Hermann Health System
33,543
Memorial Hermann Pension Plan
Memorial Hermann Health System
5,554
Doherty Auto Group 401(k) Plan
Memorial Motors, Inc.
2,911
Memorial Sloan Kettering Cancer Center Pension Plan
Memorial Sloan Kettering Cancer Center
4,491
Memorial Sloan Kettering Cancer Center Retirement Savings Plan
Memorial Sloan Kettering Cancer Center
22,606
Memorialcare Medical Group Savings and Retirement Plan
Memorialcare Medical Group
339
Menard, Inc. 401(k) Plan
Menard, Inc.
48,994
Menasha Corporation 401(k) Retirement Savings Plan
Menasha Corporation
5,037
Menlo School Defined Contribution Retirement Plan
Menlo School
248
Menominee Indian Tribe of Wisconsin 401(k) Retirement Savings Plan
Menominee Indian Tribe of Wisconsin
1,318
Mental Health Center of Denver Retirement Plan
Mental Health Center of Denver Dba Wellpower
1,084
Menzies Aviation (USA), Inc. 401(k) Plan
Menzie's Aviation (USA), Inc.
6,070
Meow Wolf 401(k) Plan
Meow Wolf, Inc.
1,053
Merakey 403(b) Plan
Merakey USA
6,121
Merative US L.P. 401(k) Retirement Plan
Merative US L.P.
1,309
Mercalis Inc. 401(k) Profit Plan and Trust
Mercalis Inc
1,223
Mercantile Bank 401(k) Plan
Mercantile Bank
690
Mercedes-Benz U.S. International, Inc. Retirement and Savings Plan
Mercedes-Benz U.S. International, Inc.
6,167
Mercedes-Benz USA, LLC Employees' Retirement Savings Plan
Mercedes-Benz USA, LLC
3,563
Mercedes-Benz USA, LLC Pension Plan
Mercedes-Benz USA, LLC
702
Mercedes-Benz Vans, LLC 401(k) Plan
Mercedes-Benz Vans, LLC
1,686
Mercer Advisors Inc. 401(k) Plan
Mercer Advisors, Inc.
1,033
Mercer Wise Pooled Employer Plan
Mercer Investments, LLC
11,206
Mercer University Defined Contribution Retirement Plan
Mercer University
1,916
Merchant & Gould P.C. 401(k) Retirement Savings and Profit Sharing Plan
Merchant & Gould P.C.
213
Merck US Pension Plan
Merck & Co., Inc.
26,843
Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.

Why Form 5500 Data Matters for Retirement Planning

Form 5500 is the annual return that virtually every private-sector retirement plan in the United States files with the Department of Labor. The filing covers funding, participant counts, plan investments, fees, service providers, and corrective contributions. Because the data is collected for regulatory oversight rather than marketing, it is one of the most consistent windows into the retirement economy: the same questions are asked of plans across all industries and all states, year after year. That consistency makes it possible to compare plans, sponsors, and markets on equal footing, a kind of comparability that voluntary survey data and vendor brochures cannot provide.

PlainRetire reorganizes the Form 5500 universe so a participant, employer, or analyst can ask everyday questions of the dataset without reading thousands of pages of agency documentation. Browsing by state surfaces concentration patterns: where pension assets sit, which states host the largest 401(k) sponsors, where retirement coverage trails the national average. Browsing by industry reveals the structural difference between sectors that historically relied on defined-benefit pensions and sectors that adopted defined-contribution plans early. Browsing by plan size highlights both the largest sponsors, typically Fortune 500 employers and multi-employer Taft–Hartley funds, and the long tail of small plans that collectively cover millions of workers.

What This Hub Page Aggregates

Each hub page on PlainRetire is a navigable index into the underlying database. The page shows summary counts, the most recent Form 5500 vintage, and direct links to individual plan detail pages. Detail pages carry the canonical filings, schedules where applicable, and audit trail back to the DOL's EFAST2 disclosure portal. Where the underlying dataset supports it, hub pages also expose key aggregates: total participant counts, aggregate assets, plan-type breakdowns (401(k), pension, profit-sharing, ESOP), and changes over the most recent reporting period.

Plan data is updated as DOL releases new annual Form 5500 datasets. Filings have a roughly seven-month lag from plan year end, so the most recent vintage typically reflects the previous full calendar year. This lag is inherent to the disclosure regime, plans are given time to gather audit reports and service-provider statements, and PlainRetire reflects the timing transparently rather than backfilling estimates.

Reading the Data With Appropriate Caveats

Aggregate numbers are useful for trend-spotting and structural comparison; they are less useful for decisions about a specific plan. The participant count for a state, for instance, includes both very large plans (which dominate the total) and very small plans (which influence median but not mean). When evaluating a specific employer's plan, drill into the plan detail page and consider plan-type, asset-mix, fee structure, and audit history, these details are flattened in any hub-level aggregate. Where regulatory updates change the categorization of a plan, PlainRetire preserves the historical filing alongside the most recent one so longitudinal analyses remain valid.