The Riverside Company has acquired HMI Cardinal, a manufacturer and distributor of glass and metal products and associated hardware for shower enclosures, storefronts and other applications.

Based in Louisville, Ky., Cardinal provides products for residential, hospitality and light commercial use. The company also manufactures at its own factory and operates seven distribution centers and nine delivery warehouses to meet the needs of roughly 5,000 customers across the U.S. and Canada.

“The shower enclosure market is growing, and stylish glass enclosures like Cardinal makes are increasingly popular,” says Suzy Kriscunas, managing partner at Riverside. “This is a nimble company that’s able to rapidly respond to changing customer tastes and demands.”

Riverside will invest to support additional growth at Cardinal. The company will maintain its current leadership according to Kimberly Wolf, office manager and marketing, at Cardinal.

“We spent a long time seeking a partner that would help our company continue expanding, and we chose to work with Riverside because they share our growth goals and can provide the support and resources to help us grow more quickly and effectively. Riverside understands what makes HMI Cardinal special and wants to build on that and enhance it,” Wolf tells “They will invest in systems and processes to improve product offerings, drive efficiencies and plan strategically so that we can continue to deliver our high levels of quality and customer service. Riverside will be our majority owner, but they will not manage the business on a day-to-day basis; they understand and respect our culture. As an international firm with 30 years of experience, it will provide capital, expertise and operating advantages that should make us more profitable, competitive and effective.”

“Cardinal has a proven customer-centric approach,” says Hunter Peterson, partner at Riverside. “It’s an outstanding foundation upon which to further grow the company in areas like ecommerce and hospitality, where we can offer experience and expertise to help ensure success and reach more customers and markets.”

The terms of the acquisition have not been disclosed.