VOL. XCIV, NO. 247

* MOAT STOCKS COMPARISON *

NO ADVICE

Friday, December 26, 2025

Stock Comparison

Thermo Fisher Scientific Inc. vs West Pharmaceutical Services, Inc.

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

Thermo Fisher Scientific Inc.

TMO · New York Stock Exchange

Market cap (USD)$213.3B
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
64/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

View full moat analysis >

West Pharmaceutical Services, Inc.

WST · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
85/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

View full moat analysis >

Side-by-side metrics

Thermo Fisher Scientific Inc.
West Pharmaceutical Services, Inc.
Ticker / Exchange
TMO - New York Stock Exchange
WST - New York Stock Exchange
Market cap (USD)
$213.3B
n/a
Sector
Healthcare
Healthcare
HQ country
US
US
Primary segment
Laboratory Products and Biopharma Services
Proprietary Products
Market structure
Competitive
Quasi-Monopoly
Market share
n/a
70%-75% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
64 / 100
85 / 100
Moat domains
Demand, Supply, Legal
Demand, Legal, Supply
Last update
2025-12-22
2025-12-22

Moat coverage

Shared moat types

Brand Trust

Thermo Fisher Scientific Inc. strengths

Installed Base ConsumablesFormat Lock InService Field NetworkRegulated Standards PipeDistribution ControlProcurement InertiaCapacity Moat

West Pharmaceutical Services, Inc. strengths

Design In QualificationCompliance AdvantageCapex Knowhow ScaleOperational Excellence

Segment mix

Thermo Fisher Scientific Inc. segments

Full profile >

Life Sciences Solutions

Oligopoly

19%

Analytical Instruments

Oligopoly

17%

Specialty Diagnostics

Oligopoly

10.4%

Laboratory Products and Biopharma Services

Competitive

53.6%

West Pharmaceutical Services, Inc. segments

Full profile >

Proprietary Products

Quasi-Monopoly

80.7%

Contract-Manufactured Products

Competitive

19.3%

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.