LONDON & PARIS–(BUSINESS WIRE)–CapVest Partners LLP (“CapVest”), a leading New York and London based investment firm, and HLD, the entrepreneurial European investment group, have entered exclusive discussions on CapVest’s proposed acquisition of a majority stake in TSG, a European leader in technical services for critical energy infrastructure. Headquartered in Paris, France, TSG is a European leader in technical services for the energy industry with a pan-European footprint in over 30 countr