Porvair plc (PRV) Fair Value & Analysis

Industrials · GB · Market cap 386M GBX

A solid business, but screening 14% overvalued on our models.

What matters now

• Solid but not exceptional quality (65/100) and above fair value, neither a clear bargain nor a standout compounder.
• A fairly wide model range (£4.78 to £10.34) leaves room in how you read the outcome.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.

How to read this chart

60‑month range £4.81 – £9.00 · fair‑value band £4.78 – £10.34 · the £8.78 price screens above the £7.51 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Aug 13, 2026.

Full chart & analysis →

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Analysis

Porvair plc (PRV) currently trades at £8.78, while our model-based Fair Value estimate is £7.51, implying the stock looks roughly 14.5% overvalued today. The Quality Score stands at 65/100 (solid quality), in the Industrials 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).

Over the trailing twelve months, Porvair plc generated revenue of £194M at a net margin of 9.4%. Revenue declined 1.8% year over year. It earns a return on equity of 11.3%. Net debt stands at £3.5M. Fundamentals as of Aug 13, 2026

Our scenario range runs from £4.78 (bear case) to £10.34 (bull case); at £8.78, the current price sits within that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. For context, the median of 10 Industrials peers we cover trades at -31% fair-value upside, at -14%, PRV screens cheaper than that median.

Fair Value models

Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.

Widest divergence: Growth Earnings (£7.53) versus Dividend Discount (£0.8000). Highest evidence: Growth DCF (80).

Key figures & financial health

Quality Score breakdown

About the company

Porvair plc engages in the filtration, laboratory, and environmental technology business. It operates through three segments: Aerospace & Industrial, Laboratory, and Metal Melt Quality. The Aerospace & Industrial segment designs and manufactures a range of specialist filtration equipment for aerospace, energy, and industrial applications.

Full company description

Porvair plc engages in the filtration, laboratory, and environmental technology business. It operates through three segments: Aerospace & Industrial, Laboratory, and Metal Melt Quality. The Aerospace & Industrial segment designs and manufactures a range of specialist filtration equipment for aerospace, energy, and industrial applications. The Laboratory segment is involved in the design and manufacture of instruments and consumables for use in environmental and bioscience laboratories with a focus on water analysis instruments, diagnostics, and sample preparation equipment. This segment also produces a range of laboratory microplates, filters, tubing, pipette tips, and associated consumables for use in diagnostics, sample preparation and chromatography applications. The Metal Melt Quality segment designs and manufactures porous ceramic filters for the filtration of molten metals. This segment also provides patent protected filters for the aluminum cast house industry; and the filtration of gray and ductile iron, as well as filtration of superalloys used in the manufacture of turbine blades. The company is also involved in trading activities. It operates in the United Kingdom, Continental Europe, South America, the United States, Asia, and Africa, as well as other North American Free Trade Agreement countries. Porvair plc was incorporated in 1982 and is based in King's Lynn, the United Kingdom.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Porvair plc reported revenue of £194M in FY2025 versus £146M in FY2021, a compound +7.3%/yr. Reported net income was £18.1M in FY2025, compounding +11.0%/yr from FY2021.

PRV screens 14% overvalued. Compare with Veralto Corporation →

Peer Group

Pollution & Treatment Controls · 91 stocks

How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.

Valuation Multiples vs Pollution & Treatment Controls median · lower = cheaper

Snowflake

Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

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Frequently asked questions

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.