VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Saturday, January 3, 2026
Stock Comparison
Honeywell International Inc. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Honeywell International Inc.
HON · The Nasdaq Stock Market LLC
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Honeywell International Inc.'s moat claims, evidence, and risks.
View HON analysisMarsh & McLennan Companies, Inc.
MMC · New York Stock Exchange
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 analysisComparison highlights
- Moat score gap: Marsh & McLennan Companies, Inc. leads (65 / 100 vs 58 / 100 for Honeywell International Inc.).
- Segment focus: Honeywell International Inc. has 4 segments (40.2% in Aerospace Technologies); 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: Honeywell International Inc. has 9 moat types across 2 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
Honeywell International Inc.
Aerospace Technologies
Aerospace systems, avionics, propulsion & aftermarket MRO services
Global
Aircraft OEMs, airlines/operators, defense & space contractors
Tier-1 supplier + aftermarket service provider
40.2%
Marsh & McLennan Companies, Inc.
Risk and Insurance Services
Insurance brokerage, risk advisory, and reinsurance brokerage/services
Global
Enterprises, public entities, associations, and individuals (via broker/agent channels)
Intermediary + advisor (insurance/reinsurance market intermediary)
62.8%
Side-by-side metrics
Moat coverage
Shared moat types
Honeywell International Inc. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
Honeywell International Inc. segments
Full profile >Aerospace Technologies
Oligopoly
Industrial Automation
Competitive
Building Automation
Oligopoly
Energy and Sustainability Solutions
Oligopoly
Marsh & McLennan Companies, Inc. segments
Full profile >Risk and Insurance Services
Oligopoly
Consulting
Competitive
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View the moat stocks listCuration & 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.