PrimeSource Brands (Clearlake-backed) Acquires Keylink

PrimeSource Brands Acquires Starborn Industries

August 12, 2026

Packaging

PrimeSource Brands, a specialty branded building products provider backed by Clearlake Capital Group, has acquired Starborn Industries, a manufacturer of branded fastening solutions and installation systems for decking and exterior applications. The transaction is PrimeSource’s 11th acquisition since partnering with Clearlake in December 2020, and financial terms were not disclosed.

PrimeSource Brands Acquires Advantage Industries

January 15, 2026

Building Products

PrimeSource Brands, a Clearlake-backed specialty building products provider, acquired Advantage Industries, a Florida-based maker of gate and fence hardware solutions. The deal strengthens PrimeSource’s outdoor living platform by adding complementary, safety-focused hardware (including pool safety) that extends its fencing and gate capabilities. Financial terms were not disclosed.

PrimeSource Brands (Clearlake-backed) Acquires Fortress Railing Products

July 2, 2025

Building Products

PrimeSource Brands, a Clearlake-backed provider of specialty branded building products, has acquired Fortress Railing Products, a Garland, Texas-based designer and distributor of customizable steel, aluminum, cable, and glass railing systems. The transaction is an add-on to PrimeSource Brands' platform to bolster its outdoor living and railing product portfolio; financial terms were not disclosed.

PrimeSource Brands (Clearlake) Acquires CityPost

December 17, 2024

Building Products

PrimeSource Brands, a Clearlake-backed provider of residential building products, has acquired CityPost, a Spokane Valley-based maker of patented cable railing systems for decks, patios and lofts. The add-on expands PrimeSource's outdoor living product portfolio and leverages CityPost's channel presence (direct e-commerce, distributors and big-box retailers); financial terms were not disclosed.

PrimeSource Building Products Acquires Nationwide Industries (NWI Enterprises)

May 3, 2021

Building Products

PrimeSource Building Products, a Clearlake-backed national distributor of specialty residential building products, has signed a definitive agreement to acquire NWI Enterprises (doing business as Nationwide Industries) from affiliates of Harbour Group. The add-on expands PrimeSource’s branded product catalogue into fence & gate hardware, railing systems and perimeter security and aims to accelerate growth through enhanced channel reach and catalogue depth.

Clearlake Capital Acquires PrimeSource from Platinum Equity

December 31, 2020

Building Products

Clearlake Capital Group has completed the acquisition of PriSo Holding Corporation (PrimeSource) from Platinum Equity. PrimeSource is a global distributor of specialty building materials with 34 U.S. distribution centers and over 1,100 employees; Clearlake intends to use the business as a platform for organic growth and add-on acquisitions in the specialty distribution sector.