NEWPORT BEACH, Calif., Jan. 11, 2021 /PRNewswire/ -- Think, LLP ("Think") announced today that it has acquired Black Line Group, a specialty tax services firm based in Minneapolis, MN which provides Research & Development ("R&D") Tax Credit Services in the United States. With this transaction, Black Line Group joins Think's family of companies. The Black Line Group name, leadership team, and all employees will continue to operate business as normal.