IGI Private Equity, a private equity firm, completed the acquisition of a majority stake in Matec Industries, a designer and manufacturer of wastewater treatment, filtration and aggregate washing plants. Unigestion co-invested in the business. Financial terms were not disclosed. “IGI Private Equity invested in Matec for two very good reasons: firstly, because the company is a leading player in the application of principles of sustainability and reuse of natural resources, through the recovery and reuse of waste materials and the recycling of water used in industrial processes; secondly, because of the ambitious growth and development project shared with Matteo Goich and Massimo Bertolucci,” Angelo Mastrandrea, IGI Private Equity Partner.