VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Equifax Inc. vs Marsh & McLennan Companies, Inc.

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

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

Marsh & McLennan Companies, Inc.

MMC · New York Stock Exchange

Market cap (USD)
SectorFinancials
CountryUS
Data as of2025-12-31
Moat score
65/ 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 Marsh & McLennan Companies, Inc.'s moat claims, evidence, and risks.

View MMC analysis

Comparison highlights

  • Moat score gap: Equifax Inc. leads (70 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
  • Segment focus: Equifax Inc. has 3 segments (42.8% in Workforce Solutions); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Equifax Inc. has 3 moat types across 3 domains; Marsh & McLennan Companies, Inc. has 5 across 3.

Primary market context

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%

Marsh & McLennan Companies, Inc.

Risk and Insurance Services

Market

Insurance brokerage, risk advisory, and reinsurance brokerage/services

Geography

Global

Customer

Enterprises, public entities, associations, and individuals (via broker/agent channels)

Role

Intermediary + advisor (insurance/reinsurance market intermediary)

Revenue share

62.8%

Side-by-side metrics

Equifax Inc.
Marsh & McLennan Companies, Inc.
Ticker / Exchange
EFX - New York Stock Exchange
MMC - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Industrials
Financials
HQ country
US
US
Primary segment
Workforce Solutions
Risk and Insurance Services
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
70 / 100
65 / 100
Moat domains
Network, Demand, Legal
Supply, Demand, Legal
Last update
2025-12-26
2025-12-31

Moat coverage

Shared moat types

Data Workflow LockinCompliance Advantage

Equifax Inc. strengths

Data Network Effects

Marsh & McLennan Companies, Inc. strengths

Service Field NetworkBrand TrustSwitching Costs General

Segment mix

Equifax Inc. segments

Full profile >

Workforce Solutions

Oligopoly

42.8%

U.S. Information Solutions

Oligopoly

33.3%

International

Competitive

23.8%

Marsh & McLennan Companies, Inc. segments

Full profile >

Risk and Insurance Services

Oligopoly

62.8%

Consulting

Competitive

37.2%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.