401(k) · DOL Form 5500 · 2023

Marsh & Mclennan Companies, Inc. 401(k) Plan

Data updated 2026-08-11

$1.2B
Total assets
9,739
Participants
99th
Percentile by assets
$126,258
Avg per participant
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Official DOL plan name: Marsh & Mclennan Agency 401(k) Savings & Investment Plan · Sponsored by Marsh & Mclennan Companies, Inc. · New York · Finance & Insurance

$1.2B in assets, 9,739 participants

Marsh & Mclennan Companies, Inc.'s Marsh & Mclennan Agency 401(k) Savings & Investment Plan reported $1.2B in total assets and 9,739 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • 99th percentile by assets (of 127,072 plans)
  • #8,677 in Finance & Insurance (8,869 peers)

Coverage in New York

Marsh & Mclennan Agency 401(k) Savings & Investment Plan covers 9,739 participants in New York, 12x the typical New York plan (state average ~798 per filing). Assets: $1.2B.

$1.2B
total plan assets (2023 EOY)
9,739
covered participants
99th
percentile by assets (of 127,072 plans)
$126,258
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Marsh & Mclennan Agency 401(k) Savings & Investment Plan reported net income rose from -$118M in the plan year 2022 filing to $262M in the plan year 2023 filing.
  • Marsh & Mclennan Agency 401(k) Savings & Investment Plan end-of-year assets rose from $967M in the plan year 2022 filing to $1.2B in the plan year 2023 filing.
  • Marsh & Mclennan Agency 401(k) Savings & Investment Plan reported participants rose from 8,077 in the plan year 2022 filing to 9,739 in the plan year 2023 filing.

See the national 2023→2024 release diff →

State

Participants vs New York filers

In New York, the average filing covers about 798 participants across 9,061 plans. Marsh & Mclennan Agency 401(k) Savings & Investment Plan reports 9,739 participants - 12x that state average ($1.2B EOY assets).

New York filing particulars

Total Assets (Beginning of Year)$967M
Net Assets (End of Year)$1.2B
Net Income$262M
Employer EIN362668272
Plan Effective Date2010-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marsh & Mclennan Companies, Inc.)

$10B$11B$12B$13B$14B 202220232024 $11.1B $13.1B ▲ +18.2%
Total plan assets by year, all Marsh & Mclennan Companies, Inc. plans on file
Year Plans Participants Total Assets
2022 5 35,424 $11.1B
2023 5 35,658 $12.4B
2024 5 39,116 $13.1B

Nearby 401(k) Plans in New York

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Marsh & Mclennan Agency 401(k) Savings & Investment Plan vs. nearby 401(k) plans in New York, assets vs. participants

Marsh & Mclennan Agency 401(k) Savings & Investment Plan vs. nearby 401(k) plans in New York, assets vs. participants Scatter plot of 6 data points. 050000100000150000 -20020406080 Total assets ($B) Participants Marsh & Mclennan Age…IBM 401 (K) Plus PlanPfizer Savings PlanMorgan Stanley 401(k…The Pepsico Savings …The Goldman Sachs 40…
Marsh & Mclennan Agency 401(k) Savings & Investment Plan vs. nearby 401(k) plans in New York, assets vs. participants

Scale composition for Marsh & Mclennan Agency 401(k) Savings & Investment Plan

Marsh & Mclennan Agency 401(k) Savings & Investment Plan reports $1.2B in end-of-year assets across 9,739 participants (0.010% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.010% of 93,925,755 covered participants) - about $126,258 per participant (91% of the national average assets-per-participant) . Net income for plan year 2023 was $262M.

This plan identity (EIN 362668272, plan #006) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $967M to $1.5B (+56.9%) while covered participants moved from 8,077 to 11,530 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 8,077 $967M Open filing
2023 9,739 $1.2B This page
2024 · index core 11,530 $1.5B Open filing

The same sponsor also keeps 3 other index-core plans on PlainRetire:

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Marsh & Mclennan Agency 401(k) Savings & Investment Plan by total assets, not by location.

Frequently Asked Questions

How did Marsh & Mclennan Agency 401(k) Savings & Investment Plan assets move in 2023?
Marsh & Mclennan Agency 401(k) Savings & Investment Plan grew sharply - up 27.1% during 2023, from $967M to $1.2B. Reported net income was $262M.
How have Marsh & Mclennan Companies, Inc. plan assets changed over time?
Across 3 plan years on file (2022-2024), Marsh & Mclennan Companies, Inc.'s sponsor-wide assets grew 18.2%, from $11.1B to $13.1B.
Where does Marsh & Mclennan Agency 401(k) Savings & Investment Plan rank by assets among Form 5500 filers?
Marsh & Mclennan Agency 401(k) Savings & Investment Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Marsh & Mclennan Agency 401(k) Savings & Investment Plan?
Among 401(k) plans in other states, the closest by assets is Promedica Health System, Inc. 401(k) Plan in OH ($1.2B, 17,938 participants).

Next read for Marsh & Mclennan Agency 401(k) Savings &…

Filing takeaways

Ways to act on Marsh & Mclennan Agency 401(k) Savings & Investment Plan's numbers.

  • By total assets, Marsh & Mclennan Agency 401(k) Savings & Investment Plan ranks among the largest 1% of all filed plans. See the largest plans
  • Compare it side-by-side against 3 similar 401(k) plans in New York. Compare plans
  • Marsh & Mclennan Companies, Inc.'s sponsor-wide assets have grown 18.2% since 2022 across 3 plan years on file. More Finance & Insurance plans