PrimeStone was established in 2014 by three former partners from The Carlyle Group, specialising in buyouts, and who have worked and invested together across Europe for more than 20 years.
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Six new investments for PrimeStone


In 2016, PrimeStone completed six new investments. Among others, it invested in (i) Volution, a supplier of ventilation systems, and (ii) Johnson Services Group, a provider of textile-related services to corporates and consumers in the United Kingdom.


Investment of EUR 150 million in PrimeStone by Sienna Capital


In February 2015, EUR 150 million investment by Sienna Capital in PrimeStone, a new fund whose strategy consists in taking medium- to long-term positions in European mid-cap listed companies.