Private equity company Thompson Street Capital Partners has closed its latest private equity vehicle, named TSCP IV, with $640 million in commitments.  The firm, which specializes in investments in middle market founder-led businesses, said the fundraising began in September 2015 and closed in December. Total commitments of $640 million exceeded the fund’s target of $500 million and the original hard cap of $600 million. It is currently investing out of the new fund. Founded in 2000, Thompson Street has acquired more than 100 companies in the business services, healthcare services and engineered products sectors. The firm has managed more than...