VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Gartner, Inc. vs Marsh & McLennan Companies, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Gartner, Inc.
IT · 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 Gartner, Inc.'s moat claims, evidence, and risks.
View IT 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: Gartner, Inc. leads (74 / 100 vs 65 / 100 for Marsh & McLennan Companies, Inc.).
- Segment focus: Gartner, Inc. has 3 segments (81.8% in Insights); 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: Gartner, Inc. has 4 moat types across 2 domains; Marsh & McLennan Companies, Inc. has 5 across 3.
Primary market context
Gartner, Inc.
Insights
IT research and executive advisory subscriptions (insights, benchmarks, and expert access)
Global
Enterprise executives and teams (technology leaders and business function leaders)
Subscription-based analyst and advisory provider
81.8%
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
Gartner, Inc. strengths
Marsh & McLennan Companies, Inc. strengths
Segment mix
Gartner, Inc. segments
Full profile >Insights
Oligopoly
Conferences
Competitive
Consulting
Competitive
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.