Aon Corporation 401(k) Plan

Form 5500 filing data for plan year 2024.

Plan Snapshot

  • Plan Sponsor: Aon Corporation
  • Sponsor EIN: 363051915
  • Sponsor Address: MSC# 17755, ATLANTA, GA, 30355
  • Plan Type: 401(k)
  • Total Participants: 13,470
  • Total Assets: $6.7B

Key Plan Design Features

  • Auto-Enrollment: Yes
  • Auto-Escalation: No
  • Allows Roth Contributions: Yes
  • Participant Loans: Yes
  • Participant-Directed Investments: Yes
  • ERISA Section 404(c) Fiduciary Safe Harbor: Yes

Plan Financials by Year

YearParticipantsTotal AssetsEmployer Contrib.Employee Contrib.
202413,470$6.7B$109.8M$170.1M
202313,974$6.2B$107.9M$165.8M
202214,010$5.4B$99.7M$154.0M

Service Providers (Schedule C)

Vendors paid $5,000 or more for services to the plan, ranked by total compensation (direct + indirect fees).

Provider Name Role Direct Compensation Indirect Compensation Total Fees
ERNST & YOUNG, LLPAuditor$0

Verified Provider Profiles

Direct links to verified profiles of matched retirement plan providers on PlanProvider.Pro:

Plan Fees & Expenses

Annual service provider fees and administrative expenses sourced from DOL Form 5500 filings.

  • Total Service Provider Fees: $0

Historical Administrative Expenses

Breakdown of administrative expense categories reported on Form 5500 filings.

Year Total Admin Expenses Investment Mgmt Fees Contract Admin Fees IQPA Audit Fees Professional Fees
2024$1,865,744$724,729$324,611
2023$2,411,000$4,787,180$109,017$43,950
2022$4,687,000$3,582,458$835,600$742,749

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