Forest Park In St. Louis, Missouri
Forest Park In St. Louis, Missouri

Thompson Street Capital Partners and Onward Capital Partner to Acquire Stanley Engineering Company, Add-On to Domaille Engineering

ST. LOUIS (February 6, 2019)

Back to All

Thompson Street Capital Partners (TSCP), a private equity firm based in St. Louis, and Chicago-based private equity firm Onward Capital announced today that they have partnered to acquire Glen Burnie, Maryland-based Stanley Engineering Company (Stanley). Founded in 1984, Stanley is an AS9100 certified manufacturer of complex multi-axis components and sub-assemblies. Terms of the transaction were not disclosed.

Stanley Engineering ( is a leading provider of a wide variety of the most difficult machining solutions. The Company leverages multi-axis milling and turning from prototyping through production launch phases in support of highly exacting industries including Aerospace, Defense, Homeland Security, and Telecommunications.

Said Tim Kanne, President/CEO of Domaille Engineering, “We are thrilled to have Stanley Engineering join the Domaille family. The resulting combination of talent and resources allows us to better serve our customers by offering a more comprehensive solution set.”

“Onward Capital is extremely pleased to bring Stanley Engineering to the Domaille portfolio. We look forward to supporting the ongoing growth of the combined businesses,” said Marcus George, Partner at Onward Capital.

Jeff Aiello, TSCP Director said, “Stanley Engineering is a perfect addition to the Domaille family of companies. Stanley and Domaille share the same core values and commitment to excellence for their customers.” Added Mr. Aiello, “Stanley has an excellent potential for continued growth. Domaille – and TSCP – are delighted to welcome them.”