The Book of Lists is your resource to stay ahead of the competition. Get in-depth information on the largest and most influential businesses in East Tennessee. Purchase a one-time download of the 2020 Book of Lists or click the Subscribe button to purchase one year of unlimited access, unlimited downloads of all our business lists as they are updated in real-time. Create a list of sales contacts and general mailings lists, sort by company or geography, and import data directly to your desktop. Start your download now. Any questions, contact Hayley Choy at 865-342-6494 or lists@knoxvillebiz.com.

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Prefer PDFs? A printer-friendly PDF of this list is available. Download PDF file Prefer Excel? A complete spreadsheet of this list is available. Download Excel file Knoxville-Area Technology Companies Ranked According to Local Employment Rank '20 '19 Company Phone Website Local emp./Tot. emp. Description of services/products Top local executive Year founded 1 1 DeRoyal Industries 200 DeBusk Lane Powell, TN 37849 865-938-7828 deroyal.com 819/1,863 Electrosurgical and surgical equipment, temperature monitoring and waste fluid management systems, RFID inventory control system, negative pressure wound therapy Pete DeBusk Chairman 1973 2 2 Siemens Healthineers 810 Innovation Drive Knoxville, TN 37932 865-218-2000 medical.siemens.com 573/NA Positron emission tomography (PET) portion of PET/computed tomography (CT) imaging systems; headquarters for Siemens’ PETNET Solutions network of PET radiopharmacies James Williams Barry Scott Head, molecular imaging CEO, PETNET Solutions 2005 3 3 Radio Systems Corp. 10427 PetSafe Way Knoxville, TN 37932 865-777-5404 radiosystemscorporation.com 447/894 Pet products: PetSafe, Invisible Fence Brand, SportDOG Willie Wallace CEO 1991 4 4 PerfectServe 2160 Lakeside Centre Way #301 Knoxville, TN 37922 877-844-7726 perfectserve.com 300/330 Unified communications platform that connects clinicians in any care setting Trisha Brady Terrell Edwards Dave Winenger VP of Human Capital President, CEO CFO 1999 5 NR Bandit Lites 2233 Sycamore Drive Knoxville, TN 37921 865-971-3071 banditlites.com 250/NA Entertainment and Architectural Illumination Rental, sales, design and installation Michael Strickland Chairman 1968 6 5 AESSEAL Inc. 355 Dunavant Road Rockford, TN 37853 865-531-0192 aesseal.com 200/1,800 Design, manufacture of mechanical seals and seal support systems used for environmental containment of chemical process fluid or rotating equipment Peter Rouleau Thomas Grove CEOs 1992 7 6 Aqua-Chem1 3001 E. John Sevier Highway Knoxville, TN 37914 865-544-2065 aqua-chem.com 150/NA Water purification technologies for pharmaceutical, beverage, energy, land-based desalination, commercial marine, government Gary Edwards President, CEO 2005 8 8 Protomet 1010 Larson Drive2 Oak Ridge, TN 37830 865-425-0600 protomet.com 145/145 Products developed specifically for the marine industry include wakeboard towers, racks, flip seats, grab rails, dash components, and optics-grade mirrors Jeff Bohanan President 1997 9 9 Electric Power Research Institute (EPRI)1 942 Corridor Park Blvd. Knoxville, TN 37932 865-218-8000 epri.com 140/NA Technology solutions that enable the transformation of power systems to be more flexible, resilient and connected Anda Ray Mark McGranaghan Senior VP, External relations and technical resources VP, Distribution and energy utilization 2005 10 7 Emerson Automation Solutions 835 Innovation Drive Knoxville, TN 37932 865-672-1079 mhm.assetweb.com 135/88,0003 Development of software/hardware/firmware products for predictive/protective maintenance and vibration analysis equipment Erik Lindhjem Vice president, general manager 1984 11 10 Centrus Technical Solutions 400 Centrifuge Way Oak Ridge, TN 37830 865-241-7007 centrusenergy.com/cts 108/242 Provides technical solutions for the engineering, development, prototyping and manufacturing of complex engineered products Larry Cutlip Senior VP, Field operations 2002 12 11 Uster Technologies 456 Troy Circle Knoxville, TN 37919 865-588-9716 uster.com 100/100 Design, manufacture, install precision measuring instruments used for quality measurement and certification for the textile industry Peyman Dekhordi COO 1948 13 12 ProNova Solutions1 330 Pellissippi Place Maryville, TN 37804 865-862-4100 pronovasolutions.com 95/NA Compact, accessible proton therapy system Terry Douglass Joe Matteo Chairman, CEO President 2012 14 13 Analysis and Measurement Services Corp. (AMS) AMS 9119 Cross Park Drive Knoxville, TN 37923 865-691-1756 ams-corp.com 70/90 Qualifying the instrumentation and control systems of nuclear power plants through laboratory and in-plant testing services and specialized testing equipment and advanced monitoring technologies Dr. H.M. Hashemian Brent D. Shumaker President Senior engineering manager 1977 15 15 Technology for Energy Corp. 10737 Lexington Drive Knoxville, TN 37932 865-966-5856 tec-usa.com 64/4 Aircraft and helicopter on-the-wing ground support equipment, equipment for electric power metering, power quality, revenue protection of the electric power industry, monitoring equipment for nuclear power plants, X-ray diffraction analyzers William Simpkins President, CEO 1975 16 17 Cryomagnetics 1006 Alvin Weinberg Drive Oak Ridge, TN 37830 865-482-9551 cryomagnetics.com 60/60 Design, development and manufacture of superconducting magnets, cryogenic systems, control electronics Michael Coffey President 1983 17 14 MS Technology 137 Union Valley Road Oak Ridge, TN 37830 865-483-0895 mstechnology.com 57/57 Microwave industrial heating equipment including metal melting/casting furnaces and fluidized bed heat treating equipment Doyle Inklebarger President, CEO 1994 18 16 GRIDSMART Technologies, Inc.1 10545 Hardin Valley Road Knoxville, TN 37932 8654663860 gridsmart.com 55/NA Traffic management system deploying proprietary technology and software that gathers important traffic data to adjust signal timing and traffic flow strategies, enables real-time remote monitoring and visual assessment Bill Malkes CEO 2007 1 Source declined to participate. Information from 2019 survey; 2 Also 2400 Maremont Parkway, Loudon, TN, 37774; 3 worldwide Source: Individual company representatives, individual company websites. NA=not applicable or not available. This list and other Knoxville-area market data are available as Excel spreadsheets at www.knoxvillebookoflists.com. If you notice an error or omission, please contact Hayley Choy at 865-342-6494 or lists@knoxvillebiz.com.