The Stephens Group Acquires Sound Seal Holdings, Inc.

March 26, 2019

The Stephens Group, LLC (“The Stephens Group”) announced today that it finalized its acquisition of Sound Seal Holdings, Inc. (“Sound Seal” or the “Company”). Terms of the transaction were not disclosed.

Based in Agawam, Massachusetts, Sound Seal is a leading manufacturer of acoustical noise control solutions, offering the widest product selection in the industry with innovative solutions and outstanding customer service. Sound Seal’s highly engineered products include soundproof doors and windows, noise curtains and barriers, fabric wrapped wall panels, enclosures, specialized floor underlayments and the award winning line of WoodTrends wall and ceiling panels. IAC Acoustics, a division of Sound Seal, is the leading developer and manufacturer of metal HVAC silencers, acoustic louvers, metal soundproof enclosures and highly engineered sound control doors and windows. Sound Seal works in a highly collaborative manner with acoustical consultants, architects, designers, industrial contractors, and building owners to address a wide range of noise control applications across industrial, architectural, medical, retail, entertainment and other end markets.

“We are very excited to add Sound Seal to our portfolio of world class companies,” said Clay Hunter, managing director at The Stephens Group. “Sound Seal is a leader in their industry with a strong and experienced management team in place. There are a number of long-term, systemic forces driving adoption of noise control products in almost every industry, and Sound Seal’s highly engineered products, scale, solutions-oriented reputation and its customer-centric culture uniquely position the company for success in this rapidly growing industry. We are excited to be partnering with Joe and his team to accelerate their growth strategy and look forward to building an enduring relationship with the Sound Seal employees and their customers.”

“The team at Sound Seal could not be more excited to move forward with Stephens Group,” said Joe Lupone, Sound Seal’s chief executive officer. “The Stephens Group provides Sound Seal with much more than just capital. Their value-added approach to enabling organic and acquisitive growth will help us achieve our strategic vision and build long-term value without the timeline constraints of a traditional private equity investor.”


The Stephens Group, LLC is a private investment firm that partners with talented management teams to help build valuable businesses. Our team has a long history of providing sophisticated, strategic expertise and taking a partnership approach to help companies successfully achieve their strategic visions and build long-term value. With over $1 billion invested since 2006, The Stephens Group targets investments in industries across the U.S., including industrial and commercial products and services, specialty distribution, B2B food and consumer products, and technology infrastructure and tech-enabled services, as well as select opportunistic situations.

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Ronald M. Clark
General Counsel
The Stephens Group, LLC