Employer · plans filed under one EIN
Marsh & McLennan Companies, Inc.
New York, NY · Finance and insurance
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
3 retirement plans with 100 or more participants file Form 5500 under Marsh & McLennan Companies, Inc.'s employer identification number (New York, New York). Their latest filings total 86,009 participant records and $13.0B in net assets.
The largest is Marsh & McLennan Companies Retirement Plan, a defined benefit pension plan with 35,450 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $186M and participant contributions $349M in the latest plan years; benefits paid were $1.05B. Schedule C compensation reported to service provider organisations totalled $10.7M.
Combined net assets moved from $5.41B in 2009 to $13.0B in 2024 (up 140%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| Marsh & McLennan Companies Retirement Plan | defined benefit pension plan | 2024 | 35,450 | $4.06B | $114,395 | — | $10.7M |
| Marsh & McLennan Companies 401(k) Savings and Investment Plan | ESOP with a 401(k) feature | 2024 | 32,965 | $7.40B | $224,607 | $8,635 | $0 |
| Marsh & McLennan Agency 401(k) Savings & Investment Plan | ESOP with a 401(k) feature | 2024 | 17,594 | $1.52B | $86,286 | $2,158 | $0 |
| US median, plan year 2024: DC plans $53,102 per participant, $2,175 employer contribution per active participant; DB plans $86,221 and $10,244. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2024 | 3 | 86,009 | $13.0B | $186M | $349M |
| 2023 | 3 | 84,773 | $12.1B | $171M | $322M |
| 2022 | 3 | 84,053 | $10.9B | $153M | $290M |
| 2021 | 3 | 81,803 | $13.3B | $149M | $264M |
| 2020 | 3 | 79,674 | $11.8B | $160M | $241M |
| 2019 | 3 | 79,848 | $10.5B | $155M | $225M |
| 2018 | 3 | 79,412 | $8.80B | $131M | $209M |
| 2017 | 3 | 79,919 | $9.78B | $176M | $200M |
| 2016 | 3 | 87,320 | $8.56B | $58.3M | $187M |
| 2015 | 3 | 70,130 | $6.94B | $49.5M | $179M |
| 2014 | 3 | 83,427 | $8.30B | $45.7M | $164M |
| 2013 | 3 | 81,647 | $7.79B | $43.5M | $153M |
| 2012 | 3 | 79,979 | $6.83B | $41.8M | $145M |
| 2011 | 3 | 79,108 | $6.24B | $141M | $142M |
| 2010 | 3 | 79,455 | $6.02B | $64.4M | $136M |
| 2009 | 2 | 78,398 | $5.41B | $241M | $138M |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| Northern Trust Company | Trustee (bank, trust company, or similar financial institution) | 1 | $2,745,383 |
| Telus Health (US) Ltd. | Consulting (general) | 1 | $2,289,891 |
| Hamilton Lane Advisors LLC | Investment management | 1 | $1,550,000 |
| Prudential Bank & Trust Company | Investment management | 1 | $900,702 |
| Pacific Investment Management Co. | Investment management | 1 | $607,401 |
| Loomis Sayles | Investment management | 1 | $484,850 |
| Aqr Capital Management LLC | Investment management | 1 | $391,457 |
| Nisa Investment Advisors L.L.C. | Investment management | 1 | $343,593 |
| Logan Circle Partners, LP | Investment management | 1 | $300,033 |
| Jacobs Levy Equity Management Inc. | Investment management | 1 | $264,449 |
| William Blair Investment Management | Investment management | 1 | $203,938 |
| Deloitte Tax LLP | Accounting (including auditing) | 1 | $171,256 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does Marsh & McLennan Companies, Inc. have?
3 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: Marsh & McLennan Companies Retirement Plan, Marsh & McLennan Companies 401(k) Savings and Investment Plan and Marsh & McLennan Agency 401(k) Savings & Investment Plan. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does Marsh & McLennan Companies, Inc. contribute to its plans?
$185,730,460 in employer contributions across these plans in their latest plan years, about $4,705 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name Northern Trust Company, Telus Health (US) Ltd., Hamilton Lane Advisors LLC and Prudential Bank & Trust Company and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Aug 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.