| PCPima County | Tucson | AZ | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| PSPk5 Solutions LLC | Tucson | AZ | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| PLPlakdx, LLC | Tucson | AZ | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
Precision Metal Fabrication | Tucson | AZ | Transportation Equipment Manufacturing336330 | 20-99 | ◐ LIKELY ACTIVE |
| PMPremier Metals INC | Tucson | AZ | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| RBRain Bird Corporation Southpoint | Tucson | AZ | Fabricated Metal Product Manufacturing332919 | 100-499 | ◐ LIKELY ACTIVE |
| RCRaytheon Company | Tucson | AZ | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| RSRaytheon_Tucson_AZ_Airport Site | Tucson | AZ | Transportation Equipment Manufacturing336414 | 500+ | ◐ LIKELY ACTIVE |
| RDRaytheon_Tucson_AZ_Britannia Drive | Tucson | AZ | Transportation Equipment Manufacturing336414 | 100-499 | ◐ LIKELY ACTIVE |
| RCRaytheon_Tucson_AZ_Country Club Road | Tucson | AZ | Transportation Equipment Manufacturing336414 | 20-99 | ◐ LIKELY ACTIVE |
| RVRaytheon_Tucson_AZ_Palo Verde Campus | Tucson | AZ | Transportation Equipment Manufacturing336415 | 500+ | ◐ LIKELY ACTIVE |
| RWRaytheon_Tucson_AZ_Rey West Bldg M12 | Tucson | AZ | Transportation Equipment Manufacturing336414 | 20-99 | ◐ LIKELY ACTIVE |
| RRRaytheon_Tucson_AZ_Rita Road | Tucson | AZ | Transportation Equipment Manufacturing336415 | 500+ | ◐ LIKELY ACTIVE |
| RRRaytheon_Tucson_AZ_RMS RUAS | Tucson | AZ | Transportation Equipment Manufacturing336411 | 100-499 | ◐ LIKELY ACTIVE |
| RIRestoration Industries LLC | Tucson | AZ | Wood Product Manufacturing321918 | — | ◐ LIKELY ACTIVE |
| RSR. S. Hughes Company, INC. | Tucson | AZ | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| SCSasol Chemicals (USA) LLC | Tucson | AZ | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| SCSEK Corporation / Tobitt | Tucson | AZ | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| STSigma Technologies Int'l LLC | Tucson | AZ | Plastics and Rubber Products Manufacturing326112 | 20-99 | ◐ LIKELY ACTIVE |
| SDSonoran Desert Winery | Tucson | AZ | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SPSouthwestern Paint & Supply LLC | Tucson | AZ | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
Southwest Mobile Storage-Tucson | Tucson | AZ | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| SDSphereX Distillery | Tucson | AZ | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| SGStafford Gregory | Tucson | AZ | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◐ LIKELY ACTIVE |
| SIState Industrial Supply CORP | Tucson | AZ | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| SYStock Yards Tucson | Tucson | AZ | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| SEStraight Engineering LLC | Tucson | AZ | Computer and Electronic Product Manufacturing334513 | — | ◐ LIKELY ACTIVE |
| STStratasys Tucson | Tucson | AZ | Machinery Manufacturing333248 | 1-19 | ◐ LIKELY ACTIVE |
| SCSugaro Corporation | Tucson | AZ | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| SPSundance Press | Tucson | AZ | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| STSupplyOne Tucson, Inc | Tucson | AZ | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| SSSW Sun Control Products, Inc. | Tucson | AZ | Furniture and Related Product Manufacturing337920 | 20-99 | ◐ LIKELY ACTIVE |
| SSSyncardia Systems LLC | Tucson | AZ | Miscellaneous Manufacturing339113 | 20-99 | ◐ LIKELY ACTIVE |
| TDTaylor Distributor's, INC. | Tucson | AZ | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| TDTeledyne Digital Imaging Us, INC | Tucson | AZ | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| TPTeledyne Photometrics | Tucson | AZ | Computer and Electronic Product Manufacturing334516 | 20-99 | ◐ LIKELY ACTIVE |
| TIThe Independent Distillery | Tucson | AZ | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| TPThe Plant | Tucson | AZ | Apparel Manufacturing315990 | 20-99 | ◐ LIKELY ACTIVE |
| TWThree Wells Distilling Company | Tucson | AZ | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| TCThunder Canyon Distillery | Tucson | AZ | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| TUTown Under Black Distillery, L.l.c. | Tucson | AZ | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| TBTRC-Tucson Blvd | Tucson | AZ | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| TTucson | Tucson | AZ | Beverage and Tobacco Product Manufacturing312111 | 1-19 | ◐ LIKELY ACTIVE |
| T0Tucson 04 | Tucson | AZ | Miscellaneous Manufacturing339113 | 1-19 | ◐ LIKELY ACTIVE |
| TATucson AZ | Tucson | AZ | Miscellaneous Manufacturing339116 | 20-99 | ◐ LIKELY ACTIVE |
| TATucson AZ - Larson Camo | Tucson | AZ | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TOTucson Optical Research Corporation | Tucson | AZ | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
| TTTucson Trailer Company, INC. | Tucson | AZ | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
| UOUniversity of Arizona Food Products & Safety Lab | Tucson | AZ | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| VFValley Fever Solutions INC | Tucson | AZ | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |