TSI INCORPORATED

TSI INCORPORATED specializes in the design, manufacturing, and calibration of precision measurement and control instruments for industrial, military, and public safety applications. Their core capabilities include the development of environmental monitoring systems, heat stress monitors, fit-testing equipment, and calibrated particulate measurement devices such as PortaCount systems, often tailored for military and first responder environments. Technical expertise spans sensor integration, industrial process instrumentation, and the fabrication of specialized components including circuit assemblies, wicks, and cartridges for demanding operational conditions. The company demonstrates deep proficiency in meeting stringent government specifications for accuracy, durability, and traceable calibration, with a focus on airborne particle detection, environmental sensing, and safety-critical instrumentation. TSI INCORPORATED maintains consistent relationships with the Department of Defense, Department of Homeland Security, and Department of Health and Human Services. For DoD, they supply mission-critical monitoring and control systems used in training and hazardous environments, including heat stress monitors and military-grade calibration equipment. DHS engagements center on public safety applications such as respirator fit-testing systems for first responders. HHS collaborations involve analytical instrumentation used in laboratory and health surveillance settings, reflecting a pattern of supporting both operational readiness and public health infrastructure. Their industry focus lies primarily in manufacturing precision instruments for measuring and controlling industrial process variables, analytical laboratory equipment, and specialized measuring devices. These NAICS codes reflect a niche positioning as a supplier of high-reliability instrumentation for defense, environmental monitoring, and medical safety applications, rather than mass-market consumer products. As a small business entity based in Shoreview, Minnesota, TSI INCORPORATED operates without federal certifications but maintains a focused government market presence through technical specialization and repeat engagement with mission-critical agencies. Their geographic location supports regional logistics for federal procurement networks in the Upper Midwest.