Husband and wife biotechnologists Nigel and Sue Plummer, 59 and 61 respectively, set up this Port Talbot dietary supplements manufacturer in 1994. It sells its products under its own brands — Proven Probiotics, Lab4 and Vega — as well as to retailers and other brands in four continents. Sales of its probiotic supplements helped overseas revenues hit £13.5m last year.

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Company details
Year2017
Rank189
CompanyCultech
ActivityDietary supplement manufacturer
LocationPort Talbot
2-yr av intl sales growth pa17.97%
International sales £000s*13,500
Total sales £000s*26,300
Staff249
Founded1994
Websitewww.cultech.co.uk

If applicable:

* Supplied by company † Annualised figure