VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Nabtesco Corporation vs Aon plc

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

Nabtesco Corporation

6268 · Tokyo Stock Exchange

Market cap (USD)
SectorIndustrials
CountryJP
Data as of2025-12-30
Moat score
91/ 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 Nabtesco Corporation's moat claims, evidence, and risks.

View 6268 analysis

Aon plc

AON · New York Stock Exchange

Market cap (USD)$76.6B
SectorFinancials
CountryIE
Data as of2025-12-31
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 Aon plc's moat claims, evidence, and risks.

View AON analysis

Comparison highlights

  • Moat score gap: Nabtesco Corporation leads (91 / 100 vs 70 / 100 for Aon plc).
  • Segment focus: Nabtesco Corporation has 4 segments (34.2% in Component Solutions Business); Aon plc has 2 segments (67% in Risk Capital).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Nabtesco Corporation has 5 moat types across 3 domains; Aon plc has 6 across 3.

Primary market context

Nabtesco Corporation

Component Solutions Business

Market

Precision reduction gears (RV reducers) for industrial robot joints

Geography

Global

Customer

Industrial robot manufacturers (OEMs)

Role

Precision motion-control component supplier

Revenue share

34.2%

Aon plc

Risk Capital

Market

Large-account commercial insurance & reinsurance brokerage and risk advisory

Geography

Global

Customer

Enterprises, insurers, reinsurers

Role

Intermediary/advisor

Revenue share

67%

Side-by-side metrics

Nabtesco Corporation
Aon plc
Ticker / Exchange
6268 - Tokyo Stock Exchange
AON - New York Stock Exchange
Market cap (USD)
n/a
$76.6B
Sector
Industrials
Financials
HQ country
JP
IE
Primary segment
Component Solutions Business
Risk Capital
Market structure
Quasi-Monopoly
Oligopoly
Market share
55%-65% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
91 / 100
70 / 100
Moat domains
Supply, Demand, Legal
Demand, Supply, Legal
Last update
2025-12-30
2025-12-31

Moat coverage

Shared moat types

Compliance AdvantageService Field NetworkBrand Trust

Nabtesco Corporation strengths

Learning Curve YieldDesign In Qualification

Aon plc strengths

Data Workflow LockinSwitching Costs GeneralScale Economies Unit Cost

Segment mix

Nabtesco Corporation segments

Full profile >

Component Solutions Business

Quasi-Monopoly

34.2%

Transport Solutions Business

Oligopoly

27.4%

Accessibility Solutions Business

Quasi-Monopoly

33%

Other Businesses

Quasi-Monopoly

5.4%

Aon plc segments

Full profile >

Risk Capital

Oligopoly

67%

Human Capital

Oligopoly

33.2%

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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.