COOPER CORNERSTONE HOLDINGS LLC

Cooper Cornerstone Holdings LLC specializes in the fabrication of custom metal components and the safe handling of hazardous waste streams for federal installations. Their technical expertise includes precision metal fabrication for infrastructure applications, such as installation of specialized equipment at military facilities, and the regulated collection, containment, and disposal of used motor oil and other hazardous materials at remote federal sites. The company demonstrates proficiency in adhering to environmental compliance protocols under RCRA and DOT standards, as well as executing mission-critical fabrication tasks that require strict dimensional accuracy and material integrity in austere environments. Their ability to execute both mechanical fabrication and environmental remediation tasks within the same operational framework sets them apart as a dual-capability contractor with agile, on-site responsiveness. The contractor has delivered services to the Department of Defense and the Department of the Interior, indicating a focus on mission-support infrastructure and land management operations. For the DoD, they have performed metal fabrication for facility upgrades, likely supporting base modernization or equipment mounting needs. For the Interior, they have executed hazardous waste removal at federal fish hatcheries, suggesting experience with ecological compliance and sensitive environmental sites. Their engagement with these agencies reflects a pattern of supporting physical infrastructure and environmental stewardship in geographically isolated federal installations. Their primary NAICS codes—332999 for miscellaneous fabricated metal products and 562119 for other waste collection—position them at the intersection of industrial fabrication and environmental services. This dual focus enables them to serve federal clients requiring both structural support and regulatory-compliant waste management, particularly in defense and natural resource management sectors. Cooper Cornerstone Holdings LLC is a small, uncertified entity based in Cheyenne, Wyoming, with a focused operational footprint aligned with federal installations in the western and midwestern United States. Their structure suggests a lean, project-driven model optimized for field execution rather than large-scale administrative operations.