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PrimeSource Building Products
PrimeSource Building Products, run by Tom Koos, distributes fasteners and building materials nationwide from Irving, TX.
PrimeSource Building Products
PrimeSource Building Products was founded in 1986 and has grown through a series of acquisitions into a dominant distributor of branded and private-label fasteners, roofing products, and concrete accessories. The company is currently owned by Platinum Equity, which acquired it in a 2020 carve-out from Itochu Corporation. CEO Tom Koos has led the business through multiple ownership transitions, focusing on consolidating a fragmented distribution landscape. The firm distributes over 6,000 SKUs across three primary categories: fasteners, roofing & insulation, and concrete accessories. Its flagship Grip-Rite brand holds significant shelf space in national retailers. PrimeSource serves a dual-channel model, supplying both pro-dealer lumberyards and big-box home improvement chains. The deployment footprint covers the continental United States through a logistics network of distribution centers that enables next-day delivery to most job sites. With over 1,000 professionals and an estimated revenue in the $2 billion range, the company functions as a portfolio company of Platinum Equity rather than a traditional family office. It operates a single headquarters in Irving, Texas, with manufacturing and distribution facilities spread across multiple states. Adjacent entities include the Grip-Rite brand's dedicated product development division, which has historically introduced construction adhesives and collated fastening systems for production builders. The company's structural posture combines manufacturing economics with distribution logistics — a hybrid model rare in building products. By sourcing fasteners globally and managing domestic packaging and quality control, PrimeSource captures margin typically split between importers and regional distributors. Ownership by Platinum Equity signals a private-equity thesis of operational improvement and potential platform expansion through bolt-on acquisitions.
General information
Firm type
Asset Manager
Year founded
1986
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Irving
Corporate office
Irving, TX, United States
Principals
Tom Koos
President and CEO
Sector focus
Frequently asked questions
Who owns PrimeSource Building Products?
PrimeSource is currently a portfolio company of Platinum Equity, a global private equity firm. Platinum Equity acquired the company from Itochu Corporation in a carve-out transaction completed in July 2020. Prior to Itochu, the company had been owned by private equity firms including Code Hennessy & Simmons.
Is PrimeSource structured as a single family office?
No. PrimeSource Building Products is a distributor and manufacturer of construction materials, not a family office or investment vehicle. It operates as a standalone business generating revenue through product sales, currently under the ownership of Platinum Equity. It does not manage third-party or family capital.
What is PrimeSource's primary product?
The company's flagship brand is Grip-Rite, a private-label line of collated fasteners, nails, screws, and construction adhesives. Grip-Rite is a leading brand in the professional contractor segment and is stocked by major home improvement retailers. PrimeSource also distributes roofing underlayment, insulation, and concrete forming accessories.
Does PrimeSource invest in real estate or other asset classes?
PrimeSource does not operate as an investment firm or allocator. Its business is the distribution and manufacturing of building products. The company's capital deployment is operational — funding inventory, logistics, and manufacturing facilities — not financial portfolio management.
What is the scale of PrimeSource's operations?
PrimeSource generates annual revenue estimated at approximately $2 billion, based on public record and private equity reporting. It operates more than 35 distribution centers across the United States and employs over 1,000 professionals. It serves both professional lumberyards and national retail chains.
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