Hamilton Robinson Capital Partners (“HRCP”), a lower middle-market private equity firm, announced today that it sold its investment in Sound Seal Holdings, Inc. (“Sound Seal” or the “Company”). Based in Agawam, Massachusetts, Sound Seal is a leading manufacturer of acoustical noise control solutions including soundproof enclosures, doors and windows, noise curtains and barriers, fabric wrapped wall panels, floor underlayments, HVAC silencers and acoustic louvers. Sound Seal works across a wide range of noise control applications including industrial, architectural, medical, retail, entertainment and other end markets. Terms of the transaction were not disclosed.

Through Hamilton Robinson’s ownership period, Sound Seal more than doubled in size, driven by significant investments and acquisitions to develop new products and markets. “We are proud of the Company’s accomplishments during our partnership,” said Christian Lund, Partner at HRCP. “We identified opportunities to expand our portfolio of products, and together with our management team we executed three accretive add-on acquisitions which added significantly to our suite of noise control solutions and geographic reach.

Hamilton Robinson successfully guided Sound Seal through a transition from family to institutional ownership. “We made critical investments to build management depth and transform the culture at the Company,” noted Brandon Richter, Managing Director at HRCP. “Sound Seal is now a world-class organization devoted to growing the business and delivering industry-leading products and service to its customers.”

“Hamilton Robinson supported us in every way,” said Joe Lupone, Sound Seal’s CEO. “They started with a focus on a vision of what the business should look like in the future, which led to developing the strategic initiatives necessary to achieve it. Hamilton Robinson’s support over the past five years helped us expand our product portfolio and secure our leading position in the market.”

Cowen, Finn Dixon & Herling, and BDO advised Sound Seal and Hamilton Robinson Capital Partners.