GARRATT-CALLAHAN COMPANY

Garratt-Callahan Company specializes in the manufacturing and application of industrial chemicals and water treatment systems for critical government infrastructure. Their core capabilities include the production of inorganic chemicals such as sodium bisulfite and antifoam agents, alongside the formulation of sanitation and boiler/chiller treatment solutions for institutional facilities. The company delivers specialized water treatment services, including emergency water purification, Legionella mitigation through plumbing fixture modifications, and laboratory testing of water quality, demonstrating deep expertise in chemical dosing, system sanitation, and regulatory-compliant water safety protocols. Their technical proficiency spans chemical manufacturing, mechanical system maintenance, and environmental remediation, with a focus on precision application in high-reliability settings such as VA medical campuses and DoD installations. The company maintains strong, recurring relationships with the Department of Defense and the Department of Veterans Affairs, providing mission-critical chemical supplies and water system maintenance services to ensure operational continuity in military and veteran healthcare facilities. They also support the Department of Justice with specialized manufacturing and water treatment contracts, indicating a trusted role in securing federal facility infrastructure. Their industry focus centers on basic inorganic chemical manufacturing, sanitation product production, and water supply system services—areas directly tied to public health, facility hygiene, and environmental compliance. Garratt-Callahan positions itself as a niche supplier of chemically engineered solutions for institutional water systems and industrial sanitation, bridging manufacturing with on-site operational support. As a small business structured as a 2L entity based in Burlingame, California, the company operates without federal certifications but maintains a focused presence in federal procurement markets, particularly within defense and veterans’ infrastructure sectors. Their geographic positioning enables responsive service to West Coast federal installations while supporting nationwide mission requirements through reliable chemical supply chains.