Thomas E. Kennedy

TSI, Inc. designs and manufactures precision instruments. Its products include air velocity transducers, automated filter testers and areosol electrometer. The company was founded by Mike Fingerson and Leroy Fingerson in 1961 and is headquartered in Shoreview, MN.

TSI, Inc. designs and manufactures precision instruments used to measure flow, particulate and other key parameters in environments to government, research institutes and universities with applications ranging from pure research to primary manufacturing. The firm's products include aerosol conditioning system, filter testers, flowmeters and particle counters. It supports the development of new filter media and quality control standards of commercial respirator manufactures. The company was founded in 1958 and is headquartered in Great Falls, MN.

Founded in 2002, TSI Instruments Ltd. is a subsidiary of TSI, Inc. (Minnesota). The company manufactures precision measuring tools and is based in High Wycombe, UK.

MSP Corp. designs, develops and manufactures industrial equipment and instruments. It offers aerosol instruments which include cascade impactors, virtual-impactor concentrators, personal PM samplers, micro-environmental PM samplers, condensation particle counters, an asbestos fiber monitor, aerosol generators, electrical ionizers; pharmaceutical inhaler testing, thin-film deposition in semiconductor device fabrication, contamination control, and life science applications. The company was founded by Benjamin Y. H. Liu and Virgil A. Marple in 1985 and is headquartered in Shoreview, MN.

DICKEY-john Corp. manufactures electronics for agricultural equipment. It offers monitors, controllers, moisture testers, ground speed sensors and other systems used in public works and analytical markets. The company was founded by Bob Dickey and Jack Littlejohn in 1966 and is headquartered in Auburn, IL.