THOMPSON-GREENE INVESTMENTS L.L.C.

Thompson-Greene Investments L.L.C. specializes in specialized construction and environmental remediation services for federal facilities, with demonstrated expertise in radon mitigation systems and nonhazardous waste handling. The contractor delivers turnkey solutions for indoor air quality remediation, including the design and installation of sub-slab depressurization systems at federal hatcheries and quarters, as well as the servicing of oil-water separators and inlet grates at military installations. Their technical capabilities encompass environmental compliance, hazardous material handling protocols, and precision mechanical interventions in sensitive infrastructure environments. Key differentiators include on-site execution in federally regulated, ecologically sensitive locations and the ability to operate under strict environmental and safety standards without disruption to ongoing federal operations. The company maintains a consistent presence with the Department of the Interior, where it supports fish hatchery infrastructure by mitigating radon exposure in occupied structures, and with the Department of Defense, providing waste management services critical to environmental stewardship at Air Force bases. These relationships reflect a pattern of trust in executing mission-critical environmental health tasks in remote or operationally constrained settings. Thompson-Greene’s primary industry focus lies in All Other Specialty Trade Contractors (NAICS 238990) and Other Nonhazardous Waste Treatment and Disposal (NAICS 562219), positioning it as a niche provider of environmental infrastructure services within federal facilities. The firm operates at the intersection of construction, environmental engineering, and regulatory compliance, serving agencies that require precise, low-impact interventions in protected or operational environments. As a small business structured as a 2K entity based in Washington, D.C., Thompson-Greene Investments L.L.C. is strategically positioned to serve federal clients in the National Capital Region and beyond. While currently without formal government certifications, its operational footprint and technical execution in high-sensitivity environments underscore its reliability as a responsive, mission-focused contractor.