401(k) · DOL Form 5500 · 2024
Aon Corporation 401(k) Plan
Data updated 2026-07-24
- $6.7B
- Total assets
- 13,974
- Participants
- 100th
- Percentile by assets
- $479,868
- Avg per participant
Official DOL plan name: Aon Savings Plan · Sponsored by Aon Corporation · Georgia · Finance & Insurance
$6.7B in assets, 13,974 participants
Aon Corporation's Aon Savings Plan reported $6.7B in total assets and 13,974 participants in its 2024 DOL Form 5500 filing, ranking in the 100th 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.
- 100th percentile by assets (of 116,472 plans)
Coverage in Georgia
Aon Savings Plan covers 13,974 participants in Georgia, 12x the typical Georgia plan (state average ~1,126 per filing). Assets: $6.7B.
- $6.7B
- total plan assets (2024 EOY)
- 13,974
- covered participants
- 100th
- percentile by assets (of 116,472 plans)
- $479,868
- avg assets per participant
What changed between DOL Form 5500 filings
plan year 2023 → plan year 2024
- Aon Savings Plan reported net income fell from $808M in the plan year 2023 filing to $462M in the plan year 2024 filing.
- Aon Savings Plan end-of-year assets rose from $6.2B in the plan year 2023 filing to $6.7B in the plan year 2024 filing.
- Aon Savings Plan reported participants rose from 13,948 in the plan year 2023 filing to 13,974 in the plan year 2024 filing.
Participants vs Georgia filers
In Georgia, the average filing covers about 1,126 participants across 3,470 plans. Aon Savings Plan reports 13,974 participants - 12x that state average ($6.7B EOY assets).
Georgia filing particulars
| Total Assets (Beginning of Year) | $6.2B |
|---|---|
| Net Assets (End of Year) | $6.6B |
| Net Income | $462M |
| Employer EIN | 363051915 |
| Plan Effective Date | 1984-07-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Aon Corporation)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 3 | 14,536 | $6.9B |
| 2023 | 2 | 15,754 | $7.8B |
| 2024 | 2 | 15,620 | $8.2B |
Nearby 401(k) Plans in Georgia
Peer 401(k) plans, same state, same plan type, ranked by total assets.
Aon Savings Plan vs. nearby 401(k) plans in Georgia, assets vs. participants
- The Teamster - UPS National 401(k) Tax Deferred Savings Plan $19.3B · 452,126
- Delta 401(k) Retirement Plan $19.0B · 89,836
- Delta 401(k) Retirement Plan for Pilots $15.9B · 14,473
- UPS 401(k) Savings Plan $14.2B · 95,250
- The Home Depot Futurebuilder $14.1B · 398,464
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to Aon Savings Plan by total assets, not by location.
- Conocophillips Savings Plan (TX) $6.7B · 6,596
- Boston Scientific Corporation 401(k) Retirement Savings Plan (MA) $6.8B · 20,639
- Aecom Retirement & Savings Plan (TX) $6.8B · 17,785
- Intermountain Health 401(k) Plan (UT) $6.8B · 68,360
Frequently Asked Questions
How did Aon Savings Plan assets move in 2024? ▼
How have Aon Corporation plan assets changed over time? ▼
Where does Aon Savings Plan rank by assets among Form 5500 filers? ▼
Which 401(k) plans are similar in size to Aon Savings Plan? ▼
Next read for Aon Savings Plan
Filing takeaways
Ways to act on Aon Savings Plan's numbers.
- By total assets, Aon Savings 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 Georgia. Compare plans
- Aon Corporation's sponsor-wide assets have grown 17.9% since 2022 across 3 plan years on file. More Finance & Insurance plans
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 363051915.
Read our methodology - how this data is sourced, computed, and verified.