Acquisition further strengthens PrimeSource Brands’ market position within the outdoor living segment
IRVING, TX, SANTA MONICA, CA, and GARLAND, TX, July 2, 2025 – PrimeSource Brands, a North American provider of specialty branded building products backed by Clearlake Capital Group, L.P. (“Clearlake”), announced today that it has acquired Fortress Railing Products (“Fortress Railing”, or the “Company”), a leading provider of railing systems designed for performance and ease-of-installation. The transaction represents PrimeSource Brands’ ninth acquisition since partnering with Clearlake in December 2020. Financial terms were not disclosed.
Based in Garland, TX, Fortress Railing specializes in designing and distributing customizable steel, aluminum, cable, and glass railing systems, including infills, balusters, handrails, lighting, and accessories.
“Fortress Railing has been a leader in the outdoor living segment for over 20 years, recognized for quality, durability, versatility, and ease of installation. The PrimeSource Brands team is eager to collaborate with management to further develop the current outdoor living portfolio,” said Tom Koos, CEO of PrimeSource Brands. “The Fortress Railing team has developed an impressive assortment of products and intellectual property that complement our existing RailFX, Ultra-Tec, CityPost, and Keylink offerings.”
“The acquisition of Fortress Railing Products represents another successful step forward in our strategy to scale PrimeSource Brands through both organic growth and acquisitions,” said José E. Feliciano, Co-Founder and Managing Partner, and Colin Leonard, Partner, of Clearlake. “As our third acquisition in the railing category, the team is excited to utilize our O.P.S.® playbook to further enhance PrimeSource’s offering within the building products industry.”
Massumi + Consoli LLP provided legal counsel to PrimeSource Brands and Clearlake. Stifel, Nicolaus and Company, Inc. served as the exclusive financial advisor to Fortress Railing Products.
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About PrimeSource Brands
PrimeSource Brands is a national provider of specialty branded building products. The Company’s product offering spans more than 95,000 SKUs, including construction fasteners, knobs & pulls, fencing & railing, and functional hardware, among others. PrimeSource Brands operates an expansive footprint, serving over 50,000 customer locations through 64 strategically located sites in 26 states and 2 countries. PrimeSource Brands plays a crucial role for customers who rely on its brand value, breadth of offering and logistics capabilities.
For more information, please visit www.psbrands.com.
About Fortress Railing Products
Fortress Railing is a leading designer and distributor railing systems in the U.S. The Company has been in business for over 20 years and maintains a valuable portfolio of intellectual property with 50+ current and pending patents and 12 railing product lines. Fortress Railing has a proprietary manufacturing process for pre-welded, panelized infill systems which help to reduce cost and time to install, while maintaining a high-level of corrosion resistance. The Company serves wholesale, retail and e-commerce distribution channels.
For more information, please visit https://fortressbp.com/railing.
About Clearlake
Founded in 2006, Clearlake Capital Group, L.P. is an investment firm operating integrated businesses across private equity, credit and other related strategies. With a sector-focused approach, the firm seeks to partner with experienced management teams by providing patient, long-term capital to dynamic businesses that can benefit from Clearlake’s operational approach, O.P.S.® The firm’s core target sectors are industrials, technology and consumer. Clearlake currently has over $90 billion of assets under management and its senior investment principals have led or co-led over 400 investments. The firm is headquartered in Santa Monica, CA with affiliates in Dallas, TX, London, UK, Dublin, Ireland, Luxembourg, Abu Dhabi, UAE, and Singapore. More information is available at clearlake.com and on X @Clearlake.
Media Contact:
For PrimeSource Brands / Clearlake:
Jennifer Hurson
Lambert by LLYC
+1 845-507-0571
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