401(k) · DOL Form 5500 · 2024

Mayer Brown LLP 401(k) Plan

Data updated 2026-08-25

$1.2B
Total assets Very large vs avg
2,154
Participants Near avg headcount
99th
Percentile by assets National rank
$572,128
Avg per participant High balance/head
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Official DOL plan name: Mayer Brown LLP USA Savings Plan · Sponsored by Mayer Brown LLP · Illinois · Professional & Technical Services

$1.2B in assets, 2,154 participants

Mayer Brown LLP's Mayer Brown LLP USA Savings Plan reported $1.2B in total assets and 2,154 participants in its 2024 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.

  • #20,001 in Professional & Technical Services (20,173 peers)

Coverage in Illinois

Mayer Brown LLP USA Savings Plan covers 2,154 participants in Illinois, 2.8x the typical Illinois plan (state average ~779 per filing). Assets: $1.2B.

#20,001
in Professional & Technical Services (20,173 peers)
+9.1%
assets growth YoY
12×
vs typical plan assets (national mean)

Mayer Brown LLP USA Savings Plan's outsized position by total assets

Mayer Brown LLP USA Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$1,232,363,463 Top 1% higher than 99% of 123,620 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Mayer Brown LLP USA Savings Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mayer Brown LLP USA Savings Plan lands in the large band (2,154 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mayer Brown LLP USA Savings Plan reported net income fell from $157M in the plan year 2023 filing to $103M in the plan year 2024 filing.
  • Mayer Brown LLP USA Savings Plan end-of-year assets rose from $1.1B in the plan year 2023 filing to $1.2B in the plan year 2024 filing.
  • Mayer Brown LLP USA Savings Plan reported participants rose from 2,124 in the plan year 2023 filing to 2,154 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 361447220 · Mayer Brown LLP PY 2024 · 401(k)

Mayer Brown LLP USA Savings Plan · $1.2B · 2,154 · 99th

  • ASSETS $1.2B
  • PCT 2,154
  • EIN 99th
  • RANK 401(k)
  • PHOTO near Coadvantage Corporation Retirement Savings Plan
  • IND ind #20001

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in Illinois →

Mayer Brown LLP USA Savings Plan in the asset neighbourhood

Block 401(k) Plan$1.2BMayer Brown LLP USA Savings PlanMayer Brown LLP USA Savings …$1.2BCoadvantage Corporation Retirement Savings PlanCoadvantage Corporation Reti…$1.2BMercedes-Benz U.S. International, Inc. Retirement and Savings PlanMercedes-Benz U.S. Internati…$1.2BPortland General Electric Company 401(k) PlanPortland General Electric Co…$1.2B
End-of-year total assets ($B) among Mayer Brown LLP USA Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Illinois filing particulars

Total Assets (Beginning of Year)$1.1B
Net Assets (End of Year)$1.2B
Net Income$103M
Employer EIN361447220
Plan Effective Date1985-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mayer Brown LLP)

Sponsor-wide plan assets over time

All Mayer Brown LLP plans reported in each filing year

Latest sponsor-wide plan assets
$1.5B 28.79757869793471% vs 2022
2024 filing year
$1.1B$1.2B$1.3B$1.4B$1.5B$1.6B 202220232024 $1.14B $1.47B ▲ +28.9%
Year Plans Participants Total Assets
2022 2 2,274 $1.1B
2023 2 2,417 $1.3B
2024 2 2,452 $1.5B

Nearby 401(k) Plans in Illinois

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

Mayer Brown LLP USA Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 0510152025 Total assets ($B) Participants Mayer Brown LLP USA Savings Plan, Total assets ($B): 1.232363463 · Participants: 2154Mayer Brown LLP USA Savings PlanAccenture United States 401(k) Match and Savings Plan, Total assets ($B): 21.302643276 · Participants: 66965Accenture United States 401(k) Match and Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 19.010099056 · Participants: 63297State Farm 401(k) Savings PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 16.835964452 · Participants: 16659United Airlines Pilot Retirement Account PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 15.755668 · Participants: 38229Abbott Laboratories Stock Retirement PlanWalgreens Retirement Savings Plan, Total assets ($B): 14.535873337 · Participants: 233635Walgreens Retirement Savings Plan
Mayer Brown LLP USA Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Mayer Brown LLP USA Savings Plan side-by-side with 3 peers →

Mayer Brown LLP USA Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Coadvantage Corporation Retirement Savings Plan in FL ($1.2B); by covered participants it is The Sycuan Band of the Kumeyaay Nation 401(k) Retirement Savings Plan in CA (2,154 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.2B here).

Similar participant headcount

Nearest other-state filings by covered participants (2,154 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Mayer Brown LLP USA Savings Plan assets move in 2024? ▼
Mayer Brown LLP USA Savings Plan grew at a solid clip - up 9.1% during 2024, from $1.1B to $1.2B. Reported net income was $103M.
How have Mayer Brown LLP plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mayer Brown LLP's sponsor-wide assets grew 28.8%, from $1.1B to $1.5B.
Where does Mayer Brown LLP USA Savings Plan rank by assets among Form 5500 filers? ▼
Mayer Brown LLP USA Savings Plan ranks in the 99th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Mayer Brown LLP USA Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Coadvantage Corporation Retirement Savings Plan in FL ($1.2B, 75,664 participants).
Which 401(k) plans cover a similar participant headcount to Mayer Brown LLP USA Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is The Sycuan Band of the Kumeyaay Nation 401(k) Retirement Savings Plan in CA (2,154 participants, $106M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 361447220.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.