VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Marsh & McLennan Companies, Inc. vs Rockwell Automation, Inc.

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

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

Rockwell Automation, Inc.

ROK · New York Stock Exchange

Market cap (USD)$44.3B
SectorIndustrials
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 Rockwell Automation, Inc.'s moat claims, evidence, and risks.

View ROK analysis

Comparison highlights

  • Moat score: both at 65 / 100.
  • Segment focus: Marsh & McLennan Companies, Inc. has 2 segments (62.8% in Risk and Insurance Services); Rockwell Automation, Inc. has 3 segments (45% in Intelligent Devices).
  • Moat breadth: Marsh & McLennan Companies, Inc. has 5 moat types across 3 domains; Rockwell Automation, Inc. has 8 across 3.

Primary market context

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%

Rockwell Automation, Inc.

Intelligent Devices

Market

Industrial automation hardware (drives, motion, safety/sensing, industrial components, micro PLCs & distributed I/O)

Geography

Global

Customer

Industrial OEMs/machine builders and end-user manufacturers (often via distributors)

Role

Automation equipment supplier (hardware OEM)

Revenue share

45%

Side-by-side metrics

Marsh & McLennan Companies, Inc.
Rockwell Automation, Inc.
Ticker / Exchange
MMC - New York Stock Exchange
ROK - New York Stock Exchange
Market cap (USD)
n/a
$44.3B
Sector
Financials
Industrials
HQ country
US
US
Primary segment
Risk and Insurance Services
Intelligent Devices
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
65 / 100
65 / 100
Moat domains
Supply, Demand, Legal
Demand, Network, Supply
Last update
2025-12-31
2025-12-31

Moat coverage

Shared moat types

Service Field NetworkBrand TrustSwitching Costs GeneralData Workflow Lockin

Marsh & McLennan Companies, Inc. strengths

Compliance Advantage

Rockwell Automation, Inc. strengths

Ecosystem ComplementsSuite BundlingTraining Org Change CostsProcurement Inertia

Segment mix

Marsh & McLennan Companies, Inc. segments

Full profile >

Risk and Insurance Services

Oligopoly

62.8%

Consulting

Competitive

37.2%

Rockwell Automation, Inc. segments

Full profile >

Intelligent Devices

Oligopoly

45%

Software & Control

Oligopoly

28.6%

Lifecycle Services

Competitive

26.4%

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.