| TAThe Aerospace CORP - Cos-2 | Colorado Springs | CO | — | ◇ UNVERIFIED |
| TBThe Blodgett Company | Richmond | TX | — | ◇ UNVERIFIED |
| TBThe Boeing Company | Anaheim | CA | — | ◇ UNVERIFIED |
| TCThe Cardenas Family Trust November 7, 2001 | San Diego | CA | — | ◇ UNVERIFIED |
| TGThe Gas Co./ Sempra Energy | Pico Rivera | CA | — | ◇ UNVERIFIED |
| TNThermo Neslab | Newington | NH | — | ◇ UNVERIFIED |
| TTherm-x | Hayward | CA | — | ◇ UNVERIFIED |
| TOTherm-x of California INC | Hayward | CA | — | ◇ UNVERIFIED |
| TITmco, INC. | Simonton | TX | — | ◇ UNVERIFIED |
| TATowards Aviation | Victorville | CA | — | ◇ UNVERIFIED |
| TOTown of Parker - Wwtp - Outfall 001 | Parker | AZ | — | ◇ UNVERIFIED |
| TITrimble INC | Sunnyvale | CA | — | ◇ UNVERIFIED |
| TNTrimble Navigation | Milpitas | CA | — | ◇ UNVERIFIED |
| TNTrimble Navigation | Sunnyvale | CA | — | ◇ UNVERIFIED |
| TNTrimble Navigation Limited | Englewood | CO | — | ◇ UNVERIFIED |
| TNTrimble Navigation Limited INC | Broomfield | CO | — | ◇ UNVERIFIED |
| TNTrimble Navigation LTD | Sunnyvale | CA | — | ◇ UNVERIFIED |
| TFTriumph Fabrications - San Diego | El Cajon | CA | — | ◇ UNVERIFIED |
| THTroy Hill Industrial Park - Ngsc Msat3 | Elkridge | MD | — | ◇ UNVERIFIED |
| TNTrue North Apartment Building | Seattle | WA | — | ◇ UNVERIFIED |
| TETrw Electromagnetic Systems | Sunnyvale | CA | — | ◇ UNVERIFIED |
| TSTrw Systems Integration Group | Sunnyvale | CA | — | ◇ UNVERIFIED |
| TITurbines, INC | Altus | OK | — | ◇ UNVERIFIED |
| UEUltra Electronics Ocean Systems | Braintree | MA | — | ◇ UNVERIFIED |
| UEUltra Electronics Ocean Systems INC | Quincy | MA | — | ◇ UNVERIFIED |
| UEUltra Electronics - Ussi | Columbia City | IN | — | ◇ UNVERIFIED |
 Undersea Sensor Systems, INC. | Columbia City | IN | — | ◇ UNVERIFIED |
 United Electric Controls Precision Sensors Divisions | Milford | CT | — | ◇ UNVERIFIED |
| ULUnited Launch Alliance LLC | Vandenberg Afb | CA | — | ◇ UNVERIFIED |
| UPUnited Paradyne Corporation | Vandenberg Afb | CA | — | ◇ UNVERIFIED |
| UTUnited Technologies Corporation Dba Atlantic Inertial Systems | Heath | OH | — | ◇ UNVERIFIED |
 Universal Avionics Systems CORP Willows | Redmond | WA | — | ◇ UNVERIFIED |
| UNUrsa Navigation Solutions, Inc. | North Billerica | MA | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Loves Park | IL | — | ◇ UNVERIFIED |
| UEUS Epa Region 2 - Ridgewood Summerfield St Mercury Site | Ridgewood | NY | — | ◇ UNVERIFIED |
| USU S Gauge | Bartow | FL | — | ◇ UNVERIFIED |
| UNU.s. Navy Combat System Engineering Development Site | Moorestown | NJ | — | ◇ UNVERIFIED |
| UAUtc Aerospace Systems - Eagan | Eagan | MN | — | ◇ UNVERIFIED |
| ULUtiliquest LLC | Beltsville | MD | — | ◇ UNVERIFIED |
| VFVacaville Fire Protection | Vacaville | CA | — | ◇ UNVERIFIED |
| VIVacmet, INC. | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| VIVacuum Instruments Corporation LLC | Ronkonkoma | NY | — | ◇ UNVERIFIED |
| VIVaisala INC. | Woburn | MA | — | ◇ UNVERIFIED |
| VIVaisala, INC | Kodiak | AK | — | ◇ UNVERIFIED |
| VAVal Avionics LTD | Salem | OR | — | ◇ UNVERIFIED |
| VTVantage Technology Corporation | San Jose | CA | — | ◇ UNVERIFIED |
| VAVazquez Auto Electric | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| VIVeris Industries Site | Portland | OR | — | ◇ UNVERIFIED |
| VTVictor Tool Co., INC. | Meriden | CT | — | ◇ UNVERIFIED |
| VIVisioneering INC | Fraser | MI | — | ◇ UNVERIFIED |
| VWVisi-Trak Worldwide, LLC | Valley View | OH | — | ◇ UNVERIFIED |
| WTWa317947476 - Trufab LLC | Shelton | WA | — | ◇ UNVERIFIED |
| WAWa317947631 - Advanced Wellness Products, INC. | Bellingham | WA | — | ◇ UNVERIFIED |
| WAWa317947827 - Afab Enterprises LLC | Anacortes | WA | — | ◇ UNVERIFIED |
| WHWa317948263 - Honeywell International | Renton | WA | — | ◇ UNVERIFIED |
| WEWagner Electronic Products, INC. | Rogue River | OR | — | ◇ UNVERIFIED |
| WSWards Science | Rochester | NY | — | ◇ UNVERIFIED |
 Williamsrdm, INC. | Fort Worth | TX | — | ◇ UNVERIFIED |
| WOW-industries of Louisiana | Maurice | LA | — | ◇ UNVERIFIED |
| WIWoodward INC. - Loveland Facility | Loveland | CO | — | ◇ UNVERIFIED |
| YEYoung Engineering & Manufacturing INC | San Dimas | CA | — | ◇ UNVERIFIED |
| ZEZed Engineering, LLC | Spring Lake | MI | — | ◇ UNVERIFIED |
| ZEZed Engineering, LLC | Grand Haven | MI | — | ◇ UNVERIFIED |
