Henderson Global Investors has acquired a 10 per cent stake in Gloucestershire-based Versarian.
The investment management group has acquired 8.6 million ordinary shares in the advanced engineering materials company from Elektron Technology.
This represents a total of 10.31 per cent of the issued share capital of the Cinderford-headquartered business.
Neill Ricketts, chief executive of Versarien, said: "Henderson Global Investors are one of the UK's best recognised fund managers and by acquiring a significant stake in Versarien it clearly demonstrates their commitment and shared vision in the potential of the company.
"We welcome them as a new investor and the board looks forward to working with them, as well as all our shareholders, in the future."