Companies similar to Aon plc (AON)

Financials · NYSE

Aon plc (AON)'s closest peers include Willis Towers Watson (WTW), Arthur J. Gallagher & Co. (AJG) and Brown & Brown (BRO). This peer set is drawn from AON's enriched company profile and is informational only — not financial advice.

Similar companies

• Willis Towers WatsonWTWFinancials

  A leading global advisory and insurance brokerage firm providing data-driven solutions for risk management, human capital, and financial capital.

  $288.82 (as of 2026-07-21) · market cap $27.7B

• Arthur J. Gallagher & Co.AJGFinancials

  Arthur J.

  $248.22 (as of 2026-07-21) · market cap $63.8B

• Brown & BrownBROFinancials

  An insurance brokerage and risk management firm that acquires and integrates regional brokers, captive insurance facilities, and finance-and-incentives dealer…

  $66.64 (as of 2026-07-21) · market cap $22.6B

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Peers are drawn from AON's enriched profile (the same similarity signal the chat uses for "companies like AON"). See the full profile: Aon plc (AON).

Last updated 2026-07-21.

Informational only — NOT financial advice. Company data is sourced from SEC EDGAR + Finnhub and shown with its as-of date.