Highlands Ventures, a Chicago-based private equity firm, has acquired Sonoma Consulting, an IT consulting and executive search firm founded in 2011 with offices in Chicago and India. Sonoma Consulting will be merged with Highlands Ventures' existing portfolio company, Halo Group, increasing Halo Group's global presence and enabling it to better serve its international customers. Under the terms of the agreement, the President and CEO of Sonoma Consulting will assume the same roles at Halo Group and join Highlands Ventures' board.