Aon Corporation
Lincolnshire, IL, 60069
- Plans
- 10
- Total participants
- 297,871
- Filing years
- 2024, 2025, 2023, 2022, 2021, 2020
- NAICS
- 524290
Benefit plans on file
| Year | Form | Plan # | Plan name | Participants |
|---|---|---|---|---|
| 2025 | Form 5500 | 501 | Aon Benefit Plan | 12,743 |
| 2025 | Form 5500 | 501 | Aon Benefit Plan | 13,403 |
| 2025 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2025 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2025 | Form 5500 | 513 | Alexander & Alexander Services INC. Post-Retirement Death Benefit Plan | 0 |
| 2025 | Form 5500 | 513 | Alexander & Alexander Services INC. Post-Retirement Death Benefit Plan | 0 |
| 2024 | Form 5500 | 001 | Alexander & Alexander Services INC. 501c9 Trust | — |
| 2024 | Form 5500 | 020 | Aon Savings Plan | 13,470 |
| 2024 | Form 5500 | 090 | Aon Retirement Pension Plan | 1,477 |
| 2024 | Form 5500 | 501 | Aon Benefit Plan | 13,112 |
| 2024 | Form 5500 | 504 | Alexander & Alexander Services, INC. Disability Benefits Plan | 0 |
| 2024 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2024 | Form 5500 | 513 | Alexander & Alexander Services INC. Post-Retirement Death Benefit Plan | 0 |
| 2024 | Form 5500 | 517 | Asa Post Retirement Health Plan | 0 |
| 2024 | Form 5500 | 599 | Aon Health Reimbursement Arrangement Plan | 0 |
| 2023 | Form 5500 | 001 | Alexander & Alexander Services INC. 501c9 Trust | — |
| 2023 | Form 5500 | 020 | Aon Savings Plan | 13,974 |
| 2023 | Form 5500 | 090 | Aon Retirement Pension Plan | 1,646 |
| 2023 | Form 5500 | 501 | Aon Benefit Plan | 13,264 |
| 2023 | Form 5500 | 504 | Alexander & Alexander Services, INC. Disability Benefits Plan | 0 |
| 2023 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2023 | Form 5500 | 513 | Alexander & Alexander Services INC. Post-Retirement Death Benefit Plan | 0 |
| 2023 | Form 5500 | 517 | Asa Post Retirement Health Plan | 0 |
| 2023 | Form 5500 | 599 | Aon Health Reimbursement Arrangement Plan | 0 |
| 2022 | Form 5500 | 001 | Alexander & Alexander Services INC. 501c9 Trust | — |
| 2022 | Form 5500 | 010 | Aon Pension Plan | 0 |
| 2022 | Form 5500 | 020 | Aon Savings Plan | 14,010 |
| 2022 | Form 5500 | 090 | Aon Retirement Pension Plan | 1,806 |
| 2022 | Form 5500 | 504 | Alexander & Alexander Services, INC. Disability Benefits Plan | 0 |
| 2022 | Form 5500 | 517 | Asa Post Retirement Health Plan | 0 |
| 2022 | Form 5500 | 599 | Aon Health Reimbursement Arrangement Plan | 0 |
| 2021 | Form 5500 | 001 | Alexander & Alexander Services INC. 501c9 Trust | — |
| 2021 | Form 5500 | 010 | Aon Pension Plan | 0 |
| 2021 | Form 5500 | 020 | Aon Savings Plan | 12,675 |
| 2021 | Form 5500 | 090 | Aon Retirement Pension Plan | 1,928 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 22,852 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 22,198 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 24,977 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 24,633 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 24,541 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 23,597 |
| 2021 | Form 5500 | 501 | Aon Benefit Plan | 13,720 |
| 2021 | Form 5500 | 504 | Alexander & Alexander Services, INC. Disability Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 513 | Alexander & Alexander Services, INC. Post Retirement Life Insurance Plan | 0 |
| 2021 | Form 5500 | 517 | Asa Post Retirement Health Plan | 0 |
| 2021 | Form 5500 | 599 | Aon Health Reimbursement Arrangement Plan | 0 |
| 2020 | Form 5500 | 010 | Aon Pension Plan | 0 |
| 2020 | Form 5500 | 020 | Aon Savings Plan | 12,874 |
| 2020 | Form 5500 | 090 | Aon Retirement Pension Plan | 2,081 |
| 2020 | Form 5500 | 501 | Aon Benefit Plan | 12,890 |
| 2020 | Form 5500 | 504 | Alexander & Alexander Services, INC. Disability Benefits Plan | 0 |
| 2020 | Form 5500 | 506 | Ahcs Retiree Benefits Plan | 0 |
| 2020 | Form 5500 | 513 | Alexander & Alexander Services INC. Post-Retirement Death Benefit Plan | 0 |
| 2020 | Form 5500 | 517 | Asa Post Retirement Health Plan | 0 |
| 2020 | Form 5500 | 599 | Aon Health Reimbursement Arrangement Plan | 0 |
Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.
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