401(k) · DOL Form 5500 · 2023

Aon Consulting, Inc. 401(k) Plan

Data updated 2026-08-11

$1.7B
Total assets
25,018
Participants
99th
Percentile by assets
$67,428
Avg per participant
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Official DOL plan name: Aon Pooled Employer Plan · Sponsored by Aon Consulting, Inc. · Illinois · Finance & Insurance

$1.7B in assets, 25,018 participants

Aon Consulting, Inc.'s Aon Pooled Employer Plan reported $1.7B in total assets and 25,018 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)
  • #8,723 in Finance & Insurance (8,869 peers)

Coverage in Illinois

Aon Pooled Employer Plan covers 25,018 participants in Illinois, 32x the typical Illinois plan (state average ~779 per filing). Assets: $1.7B.

$1.7B
total plan assets (2023 EOY)
25,018
covered participants
99th
percentile by assets (of 127,072 plans)
$67,428
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Aon Pooled Employer Plan reported net income rose from -$33M in the plan year 2022 filing to $262M in the plan year 2023 filing.
  • Aon Pooled Employer Plan end-of-year assets rose from $665M in the plan year 2022 filing to $1.7B in the plan year 2023 filing.
  • Aon Pooled Employer Plan reported participants rose from 15,916 in the plan year 2022 filing to 25,018 in the plan year 2023 filing.

See the national 2023→2024 release diff →

State

Participants vs Illinois filers

In Illinois, the average filing covers about 779 participants across 5,745 plans. Aon Pooled Employer Plan reports 25,018 participants - 32x that state average ($1.7B EOY assets).

Illinois filing particulars

Total Assets (Beginning of Year)$665M
Net Assets (End of Year)$1.7B
Net Income$262M
Employer EIN222232264
Plan Effective Date2021-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Aon Consulting, Inc.)

$0B$1B$2B$3B$4B 202220232024 $0.66B $3.14B ▲ +375.8%
Total plan assets by year, all Aon Consulting, Inc. plans on file
Year Plans Participants Total Assets
2022 1 15,916 $665M
2023 1 25,018 $1.7B
2024 1 48,473 $3.1B

Nearby 401(k) Plans in Illinois

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

Aon Pooled Employer Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Aon Pooled Employer Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 05101520 Total assets ($B) Participants Aon Pooled Employer …Accenture United Sta…State Farm 401(k) Sa…Abbott Laboratories …United Airlines Pilo…Walgreens Retirement…
Aon Pooled Employer Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Scale composition for Aon Pooled Employer Plan

Aon Pooled Employer Plan reports $1.7B in end-of-year assets across 25,018 participants (0.014% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.027% of 93,925,755 covered participants) - about $67,428 per participant (49% of the national average assets-per-participant) . Net income for plan year 2023 was $262M.

This plan identity (EIN 222232264, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $665M to $3.1B (+372.3%) while covered participants moved from 15,916 to 48,473 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 15,916 $665M Open filing
2023 25,018 $1.7B This page
2024 · index core 48,473 $3.1B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Aon Pooled Employer Plan by total assets, not by location.

Frequently Asked Questions

How did Aon Pooled Employer Plan assets move in 2023?
Aon Pooled Employer Plan surged - up 153.8% during 2023, from $665M to $1.7B. Reported net income was $262M.
How have Aon Consulting, Inc. plan assets changed over time?
Across 3 plan years on file (2022-2024), Aon Consulting, Inc.'s sponsor-wide assets grew 372.3%, from $665M to $3.1B.
Where does Aon Pooled Employer Plan rank by assets among Form 5500 filers?
Aon Pooled Employer 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 Aon Pooled Employer Plan?
Among 401(k) plans in other states, the closest by assets is Arcadis U.S., Inc. Retirement Savings Plan in CO ($1.7B, 5,491 participants).

Filing takeaways

Ways to act on Aon Pooled Employer Plan's numbers.