Private equity firm Thoma Bravo LLC is buying Sparta Systems Inc. for an undisclosed amount.

Sparta, headquartered in Hamilton, New Jersey, provides enterprise quality management services to pharmaceutical, medical device, consumer products and manufacturing companies. The company has a service called TrackWise that aims to help manufacturers handle challenges, including regulatory oversight, public scrutiny and supply chain complexity.

Sparta is being sold by private equity firms Summit Partners and Altaris Capital Partners, which invested in Sparta in 2006.

Thoma Bravo plans to build Sparta organically and through additional acquisitions. The San Francisco-based firm has made several deals this year, including the $930 million purchase of TravelClick in March, and acquisition of Global Healthcare Exchange LLC in February. In May, the firm closed a $3.65 billion fund.  

Kirkland & Ellis LLP provided legal advice to Thoma Bravo. Lazard was Sparta's financial adviser, and Proskauer acted as legal counsel for the deal.