Defined Benefit (Pension) · DOL Form 5500 · 2024

Aon Corporation Pension Plan

Data updated 2026-08-25

$1.5B
Total assets Very large vs avg
1,646
Participants Near avg headcount
99th
Percentile by assets National rank
$891,304
Avg per participant High balance/head
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Official DOL plan name: Aon Retirement Pension Plan · Sponsored by Aon Corporation · Georgia · Finance & Insurance

$1.5B in assets, 1,646 participants

Aon Corporation's Aon Retirement Pension Plan reported $1.5B in total assets and 1,646 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.

  • #8,374 in Finance & Insurance (8,549 peers)

Where Aon Retirement Pension Plan sits by assets

Aon Retirement Pension Plan sits among the largest 1% of all filed plans, $1.5B for 1,646 participants (~$891,304/participant), down 5.5% in 2024.

#8,374
in Finance & Insurance (8,549 peers)
-5.5%
assets change YoY
15×
vs typical plan assets (national mean)

The plan reported a net loss of $74M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Aon Retirement Pension Plan's outsized position by total assets

Aon Retirement Pension Plan vs every filed plan by assets

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

$1,467,086,555 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

Aon Retirement Pension 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. Aon Retirement Pension Plan lands in the large band (1,646 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Aon Retirement Pension Plan reported net income fell from $34M in the plan year 2023 filing to -$74M in the plan year 2024 filing.
  • Aon Retirement Pension Plan reported participants fell from 1,806 in the plan year 2023 filing to 1,646 in the plan year 2024 filing.
  • Aon Retirement Pension Plan end-of-year assets fell from $1.6B in the plan year 2023 filing to $1.5B in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 363051915 · Aon Corporation PY 2024 · Defined Benefit (Pension)

Aon Retirement Pension Plan · $1.5B · 1,646 · 99th

  • SCH $1.5B
  • SCH 1,646
  • SCH 99th
  • SCH Defined Benefit (Pension)
  • SCH near Nyu Langone Hospitals Retirement Plan
  • SCH ind #8374

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 Finance & Insurance retirement plans → · Plans in Georgia →

Aon Retirement Pension Plan in the asset neighbourhood

Aon Retirement Pension Plan$1.5BNyu Langone Hospitals Retirement PlanNyu Langone Hospitals Retire…$1.5BPrincipal Cash Balance Plan$1.5BWestern Washington Laborers-Employers Pension PlanWestern Washington Laborers-…$1.5BCleveland-Cliffs Combined Pension PlanCleveland-Cliffs Combined Pe…$1.5B
End-of-year total assets ($B) among Aon Retirement Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$1.6B
Net Assets (End of Year)$1.4B
Net Income-$74M
Employer EIN363051915
Plan Effective Date2020-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Aon Corporation)

Sponsor-wide plan assets over time

All Aon Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$8.2B 17.932500979716092% vs 2022
2024 filing year
$6.5B$7B$7.5B$8B$8.5B 202220232024 $6.93B $8.17B ▲ +17.9%
Year Plans Participants Total Assets
2022 3 14,536 $6.9B
2023 2 15,754 $7.8B
2024 2 15,620 $8.2B

Nearby Defined Benefit (Pension) Plans in Georgia

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Aon Retirement Pension Plan vs. nearby Defined Benefit (Pension) plans in Georgia, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000 0510152025 Total assets ($B) Participants Aon Retirement Pension Plan, Total assets ($B): 1.467086555 · Participants: 1646Aon Retirement Pension PlanUPS Retirement Plan, Total assets ($B): 21.2364871 · Participants: 43465UPS Retirement PlanThe Southern Company Pension Plan, Total assets ($B): 15.319238036 · Participants: 25843The Southern Company Pension PlanUPS/Ibt Full-Time Employee Pension Plan, Total assets ($B): 12.219463258 · Participants: 69627UPS/Ibt Full-Time Employee Pension PlanUPS Pension Plan, Total assets ($B): 9.280234765 · Participants: 157587UPS Pension PlanDelta Retirement Plan, Total assets ($B): 7.253434311 · Participants: 15222Delta Retirement Plan
Aon Retirement Pension Plan vs. nearby Defined Benefit (Pension) plans in Georgia, assets vs. participants
Compare Aon Retirement Pension Plan side-by-side with 3 peers →

Aon Retirement Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Georgia, the nearest Defined Benefit (Pension) by assets is Nyu Langone Hospitals Retirement Plan in NY ($1.5B); by covered participants it is The Rite Aid Pension Plan in PA (1,647 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.5B here).

Similar participant headcount

Nearest other-state filings by covered participants (1,646 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 Aon Retirement Pension Plan assets move in 2024? ▼
Aon Retirement Pension Plan pulled back noticeably - down 5.5% during 2024, from $1.6B to $1.5B. Reported net income was -$74M.
How have Aon Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Aon Corporation's sponsor-wide assets grew 17.9%, from $6.9B to $8.2B.
Where does Aon Retirement Pension Plan rank by assets among Form 5500 filers? ▼
Aon Retirement Pension 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 Defined Benefit (Pension) plans are similar in size to Aon Retirement Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Nyu Langone Hospitals Retirement Plan in NY ($1.5B, 2,774 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Aon Retirement Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is The Rite Aid Pension Plan in PA (1,647 participants, $117M 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 363051915.

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.