Thompson Street Partners Acquires Microbiology Research Associates, Inc.

ST. LOUIS (May 13, 2015) – Thompson Street Capital Partners (TSCP), a private equity firm based in St. Louis, and Steve Sullivan, founder and Managing Partner of CRO Advisors, a specialty consulting firm focused on the Contract Research Organization industry, announced today that they have partnered with management to acquire Microbiology Research Associates, Inc. (MRA) of Acton, Massachusetts. MRA is a provider of microbiology testing services to the pharmaceutical, cosmetic, medical device, biotechnology, and healthcare industries. Terms of the transaction were not disclosed.

Founded in 1993, Microbiology Research Associates ( is a microbiology lab, serving compounding pharmacies, hospitals and cosmetic makers. Its tests include: microbiological examination; sterility; batch release testing; preservative effectiveness; and environmental.

Said Jim Cooper, Managing Partner, “Thompson Street and CRO are looking forward to partnering with MRA’s management. The Company has achieved a leading position in the microbial testing market, they enjoy a well-earned reputation for outstanding customer service and they have a superior track record with the FDA.” Added Cooper, “MRA has achieved its success by providing best-in-class service in a highly specialized field.”

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