PrimeSource Brands Expands Portfolio with Fortress Railing Acquisition

Deal News | Jul 02, 2025 | Clearlake Capital

PrimeSource Brands, backed by Clearlake Capital Group, has acquired Fortress Railing Products, a specialist in railing systems designed for performance and installation ease. This acquisition marks PrimeSource's ninth under Clearlake's guidance since December 2020. Fortress Railing, known for its customizable steel, aluminum, and glass railing systems, complements PrimeSource's outdoor living product range. Clearlake, through its O.P.S. strategy, aims to scale PrimeSource via organic and acquisitive growth, with Fortress being the third acquisition in the railing sector. Legal and financial advisory were provided by Massumi + Consoli LLP and Stifel, Nicolaus and Company, Inc., respectively.

Sectors

  • Building Products
  • Private Equity

Geography

  • United States – PrimeSource and Fortress Railing operate within the U.S., and the acquisition involves American companies.

Industry

  • Building Products – This industry involves the manufacturing and distribution of materials used in construction, such as PrimeSource's and Fortress Railing's offerings.
  • Private Equity – Clearlake Capital is a private equity firm that finances acquisitions, such as PrimeSource's purchase of Fortress Railing.

Financials

  • Not Disclosed – The financial terms of PrimeSource's acquisition of Fortress Railing Products were not disclosed.

Participants

NameRoleTypeDescription
PrimeSource BrandsAcquirerCompanyPrimeSource Brands is a provider of specialty branded building products, expanding its portfolio via acquisitions.
Clearlake Capital GroupInvestorCompanyClearlake Capital is an investment firm backing PrimeSource in its acquisition strategies.
Fortress Railing ProductsTarget CompanyCompanyFortress Railing Products specializes in railing systems, now acquired as part of expanding PrimeSource's offerings.
Massumi + Consoli LLPLegal AdvisorCompanyProvided legal counsel to PrimeSource Brands and Clearlake for the acquisition.
Stifel, Nicolaus and Company, Inc.Financial AdvisorCompanyServed as the exclusive financial advisor to Fortress Railing Products during the acquisition.