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Tristel plc (TSTL) Fair Value & Analysis

Healthcare · GB · Market cap 183M GBX

Pricep3.90
Fair Valuep3.04
Upside-22.1%
Quality95/100
Evidence: High Range p2.28 – p3.81

Fair value as of: Jun 24, 2026

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Analysis

Tristel plc (TSTL) currently trades at p3.90, while our model-based Fair Value estimate is p3.04 — implying the stock looks roughly 22.1% overvalued today. We read business quality at 95/100 (high quality), in the Healthcare sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium — the entry price still matters most (evidence: high).

About the company

Tristel plc develops, manufactures, and sells infection prevention products in the United Kingdom, Australia, Germany, Western Europe, and internationally. The company operates through three segments: Hospital Medical Device Decontamination, Hospital Environmental Surface Disinfection, and Other. It offers device decontamination products, including wipes system, ULT, OPH, Stella system, fuse for Stella, rinse assure, clean, EVE, medistel, EVA system, daisygrip, fuse for surfaces, dosing system, airstel, enzystel, DOK, pre-clean wipes, rinse wipes, sporicidal wipes, clean for Stella, protect, and wipes; surface disinfection products, such as FUSE, JET, JET LUX, JET PRO, TANK 10 CLO2, TANK 5 CLO2, and TILT 5 CLO2; as well as operates 3T, a cloud-based platform alternative to paper-based traceability systems. The company provides its medical disinfection products, including airway management, cardiology, ear, nose and throat, endoscopy, gastrointestinal physiology, laboratory, ophthalm…

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Frequently asked questions

Is Tristel plc (TSTL) undervalued?
As of Jun 24, 2026, our model estimates a fair value of p3.04 versus a price of p3.90 — about −22% (overvalued). Model-based estimate, not financial advice.
What is the fair value of TSTL?
Our 21-model fair value for Tristel plc is p3.04 (as of Jun 24, 2026), built from audited fundamentals. The current price is p3.90.
What is the quality score of TSTL?
Tristel plc has a Quality Score of 95/100, measuring profitability, growth and balance-sheet strength from non-valuation factors.

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data — nothing guessed.

Educational research only · not financial advice · no buy/sell recommendation. Model-based estimates are not certainties; their reliability depends on data quality and assumptions.