Quadrant Private Equity-backed Probe Group, the consulting and digital enablement company, agreed to merge with Stellar, an Australian business process outsourcing company. Financial terms were not disclosed. “Stellar has enjoyed significant success and growth over its 22-year history and we see this merger as the natural next stage in our evolution. The Stellar shareholders are delighted to be continuing as investors in the combined group and we look forward to being a part of what will be an exciting journey for customers, employees and shareholders of both companies,” John Hollingsworth, Stellar Chair.