VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, January 7, 2026
Stock Comparison
Judges Scientific plc vs Spirax Group plc
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Judges Scientific plc
JDG · London Stock Exchange - AIM
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Judges Scientific plc's moat claims, evidence, and risks.
View JDG analysisSpirax Group plc
SPX · London 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 Spirax Group plc's moat claims, evidence, and risks.
View SPX analysisComparison highlights
- Moat score gap: Spirax Group plc leads (71 / 100 vs 63 / 100 for Judges Scientific plc).
- Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); Spirax Group plc has 3 segments (52.1% in Steam Thermal Solutions).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
- Moat breadth: Judges Scientific plc has 3 moat types across 1 domains; Spirax Group plc has 6 across 2.
Primary market context
Judges Scientific plc
Vacuum
Vacuum and surface-science related instrumentation (e.g., UHV/vacuum components and systems, thin-film/surface engineering adjacent tools)
Global
Research labs and high-tech manufacturing
Equipment manufacturer
51.7%
Spirax Group plc
Steam Thermal Solutions
Industrial and commercial steam systems (condensate management, controls, thermal energy management products and solutions)
Global
Industrial process operators and commercial facility operators
OEM / solutions provider
52.1%
Side-by-side metrics
Moat coverage
Shared moat types
Judges Scientific plc strengths
Spirax Group plc strengths
Segment mix
Judges Scientific plc segments
Full profile >Materials Sciences
Competitive
Vacuum
Competitive
Spirax Group plc segments
Full profile >Steam Thermal Solutions
Oligopoly
Electric Thermal Solutions
Competitive
Watson-Marlow Fluid Technology Solutions
Oligopoly
Want the full wide moat stocks list?
Browse the full ranking of wide moat stocks, updated with moat scores and segment context.
View the moat stocks listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.