VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Danaher Corporation vs Marsh & McLennan Companies, Inc.

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

Danaher Corporation

DHR · New York Stock Exchange

Market cap (USD)$158.8B
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
77/ 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 Danaher Corporation's moat claims, evidence, and risks.

View DHR 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: Danaher Corporation leads (77 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
  • Segment focus: Danaher Corporation has 3 segments (41% in Diagnostics); Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services).
  • Moat breadth: Danaher Corporation has 7 moat types across 3 domains; Marsh & McLennan Companies, Inc. has 5 across 3.

Primary market context

Danaher Corporation

Diagnostics

Market

In vitro diagnostics instruments, consumables, software and services (clinical lab, acute care/POC, pathology, molecular diagnostics)

Geography

Global

Customer

Hospitals, physician offices, reference laboratories, pathology labs, critical care settings

Role

IVD device manufacturer and reagent/test supplier + software/services

Revenue share

41%

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

Danaher Corporation
Marsh & McLennan Companies, Inc.
Ticker / Exchange
DHR - New York Stock Exchange
MMC - New York Stock Exchange
Market cap (USD)
$158.8B
n/a
Sector
Healthcare
Financials
HQ country
US
US
Primary segment
Diagnostics
Risk and Insurance Services
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
65 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand, Legal
Last update
2025-12-22
2025-12-31

Moat coverage

Shared moat types

Service Field Network

Danaher Corporation strengths

Installed Base ConsumablesDesign In QualificationOperational ExcellenceLearning Curve YieldRegulated Standards PipeSuite Bundling

Marsh & McLennan Companies, Inc. strengths

Brand TrustSwitching Costs GeneralCompliance AdvantageData Workflow Lockin

Segment mix

Danaher Corporation segments

Full profile >

Biotechnology

Oligopoly

28.3%

Life Sciences

Oligopoly

30.7%

Diagnostics

Oligopoly

41%

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?

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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.