VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Aon plc vs Equifax Inc.

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Aon plc

AON · New York Stock Exchange

Market cap (USD)$76.6B
SectorFinancials
CountryIE
Data as of2025-12-31
Moat score
70/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Aon plc's moat claims, evidence, and risks.

View AON analysis

Equifax Inc.

EFX · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2025-12-26
Moat score
70/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Equifax Inc.'s moat claims, evidence, and risks.

View EFX analysis

Comparison highlights

  • Moat score: both at 70 / 100.
  • Segment focus: Aon plc has 2 segments (67% in Risk Capital); Equifax Inc. has 3 segments (42.8% in Workforce Solutions).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Aon plc has 6 moat types across 3 domains; Equifax Inc. has 3 across 3.

Primary market context

Aon plc

Risk Capital

Market

Large-account commercial insurance & reinsurance brokerage and risk advisory

Geography

Global

Customer

Enterprises, insurers, reinsurers

Role

Intermediary/advisor

Revenue share

67%

Equifax Inc.

Workforce Solutions

Market

Income & employment verification and employer HR compliance services

Geography

Primarily U.S. (with smaller international offerings)

Customer

Employers, lenders, government agencies, and credentialed verifiers

Role

Payroll-fed data & verification intermediary

Revenue share

42.8%

Side-by-side metrics

Aon plc
Equifax Inc.
Ticker / Exchange
AON - New York Stock Exchange
EFX - New York Stock Exchange
Market cap (USD)
$76.6B
n/a
Sector
Financials
Industrials
HQ country
IE
US
Primary segment
Risk Capital
Workforce Solutions
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
70 / 100
70 / 100
Moat domains
Demand, Supply, Legal
Network, Demand, Legal
Last update
2025-12-31
2025-12-26

Moat coverage

Shared moat types

Data Workflow LockinCompliance Advantage

Aon plc strengths

Switching Costs GeneralService Field NetworkBrand TrustScale Economies Unit Cost

Equifax Inc. strengths

Data Network Effects

Segment mix

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

Equifax Inc. segments

Full profile >

Workforce Solutions

Oligopoly

42.8%

U.S. Information Solutions

Oligopoly

33.3%

International

Competitive

23.8%

Want the full wide moat stocks list?

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Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.