VCCircle | GIC, Advent, Bain invest $350 million in engineering outsourcer QuEST Reuters UL] and private equity investors Advent International and Bain Capital have jointly bought a minority stake in engineering outsourcing firm QuEST Global Services for $350 million. QuEST, which provides services to companies in sectors including ... GIC, Advent, Bain Invest $350M In Engineering Outsourcer QuEST |