This high quality engineering firm will filter profits to investors

Porvair, a maker of high-tech filtration systems, is an excellent long-term pick for your investment portfolio.

Porvair's molten metals division accounts for more than a quarter of overall turnover © Getty
(Image credit: HadelProductions)

There is a select group of high-quality British engineering companies with leading positions in their market niches that make excellent long-term holdings for your portfolio. These include Halma, Rotork and Spirax Sarco.

Here, we add another: Porvair (LSE: PRV), a member of the FTSE Small Cap index with a market value of £340m. Porvair makes filters – bespoke high-tech filtration systems that, for example, extract impurities from molten metals.

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Porvair (LSE: PRV)
Investment measureRow 1 - Cell 1 Investment ratio
Market value£340mP/e (2021)24.4
Share price708pDebt/cashNet cash £4m
Results20182019Change
Turnover£128.8m£144.9m+12.5%
Pre-tax profit£12m£14m+16.7%
Earnings per share22.1p23.6p+6.8%
Dividend per share4.6p4.9p+6.5%
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Dr Mike Tubbs

Highly qualified (BSc PhD CPhys FInstP MIoD) expert in R&D management, business improvement and investment analysis, Dr Mike Tubbs worked for decades on the 'inside' of corporate giants such as Xerox, Battelle and Lucas. Working in the research and development departments, he learnt what became the key to his investing; knowledge which gave him a unique perspective on the stock markets.

Dr Tubbs went on to create the R&D Scorecard which was presented annually to the Department of Trade & Industry and the European Commission. It was a guide for European businesses on how to improve prospects using correctly applied research and development. He has been a contributor to MoneyWeek for many years, with a particular focus on R&D-driven growth companies.