TAMKO Building Products LLC

TAMKO Building Products, LLC is a privately held American building-materials manufacturer founded in 1944 by E.L. and Mary Ethel Craig (the name is an acronym for Texas, Arkansas, Missouri, Kansas and Oklahoma). Corporate headquarters are in Galena, Kansas, with a principal office in Joplin, Missouri, and manufacturing/warehouse sites across the U.S. (including Frederick, MD; Tuscaloosa, AL; Denver, CO; and Dallas, TX). The company remains controlled by the founding family's third generation; The Carlyle Group took a minority stake in 2019 and reportedly explored a sale valuing the business at over $3.5 billion (Bloomberg, 2024). Third-party estimates put headcount in the roughly 700–1,000 range and revenue in the hundreds of millions; TAMKO does not publish audited financials, so these figures are unverified.

TAMKO manufactures and distributes roofing and related building products. Major lines include residential asphalt shingles, low-slope commercial roofing (base/cap sheets), roofing underlayments, waterproofing and window/door flashing products, cements and coatings, and composite decking and railing (Envision). It is vertically integrated, operating its own raw-materials plants (glass mat, processed asphalt, polyester mats, crushed limestone), and sells to both contractors/roofing professionals and retail channels.

Litigation posture: In the tracked data TAMKO has 1 case, as a defendant and never as a plaintiff — consistent with an operating company being targeted rather than a patent assertion entity. It holds its own patent portfolio but shows no offensive filing activity in this dataset.

Notable case: Kirsch Research & Development, LLC v. TAMKO Building Products LLC (N.D. Tex., 3:20-cv-01030, filed April 24, 2020), a patent infringement suit by Kirsch Research (Simi Valley, CA) over synthetic roofing underlayment technology. The same dispute was filed as an ITC Section 337 complaint (Inv. No. 337-TA-1202), naming TAMKO among numerous roofing-industry respondents. The N.D. Tex. venue reflects the plaintiff's choice, not TAMKO's. No merits conclusions are asserted here.