| TQS Thermal Quarz-Schmelze GmbH | TRAC MEDICAL SOLUTIONS, INC. | TraceCompany Aps( MD ) |
| TQuist, LLC ( Monroe, CT ) | TRAC, Inc. ( Alexandria, VA ) | TRACEDETECT, INC. ( Seattle, WA ) |
| TQuist, LLC, ( Monroe, CT ) | TracBeam LLC ( Golden, CO ) | TRACEGUARD TECHNOLOGIES INC. ( New York, NY ) |
| TR Associates, L.L.C. ( Merion Station, PA ) | TracBeam LLC. | TraceGuard Technologies Ltd. ( Petach Tikva, IL ) |
| TR Marketing, Inc. ( Laguna Niguel, CA ) | TracBeam, LLC ( Golden, CO ) | TRACEGUARD TECHNOLOGIES, INC. |
| TR Oil Services Limited( Aberdeen ) | TRACE ANALYTICS GMBH ( Braunschweig, DE ) | Tracer Analitica S.L. ( Barcelona, ES ) |
| TR Oil Services Limited ( Aberdeen, GB ) | Trace Biotech AG | Tracer Detection Technology Corp. ( Syosset, NY ) |
| TR Sales, LLC ( Cold Spring Harbor, NY ) | Trace Biotech AG( Braunschweig ) | Tracer Electronics ( Lake Hopatcong, NJ ) |
| TR Systems, Inc. ( Norcross, GA ) | Trace Engineering ( Arlington, WA ) | Tracer Net Corporation ( Chantilly, VA ) |
| TR TECHNOLOGIES FOUNDATION LLC ( Wilmington, DE ) | Trace Publishing Company ( Wimberley, TX ) | Tracer Research Corporation ( Tucson, AZ ) |
| TR Technologies Inc. ( Edmonton, Alberta ) | Trace Storage Technologies Corporation( Hsinchu ) | TRACESECURITY, INC. ( Baton Rouge, LA ) |
| TR TECHNOLOGIES INC. ( Edmonton, CA ) | Trace Storage Technology Corp.( Hsingchu ) | TraceSpan Communications Ltd. ( Raanana, IL ) |
| TR Theater Research, Inc. ( Cypress, CA ) | Trace Systems, Inc. ( Palo Alto, CA ) | TraceTech Incorporated ( Mankato, MN ) |
| TR3 Energy Inc. | Trace Technologies, Inc. ( Bethesda, MD ) | Tracetrack Technology Ltd.( Petach-Tikva ) |
| TRA Snow Brackets, Inc. | Traceability System Architects, Inc. ( Newton, MA ) | Tracetrack Technology Ltd. ( Petach-Tikva, IL ) |
| TRA, Inc. ( New York, NY ) | TraceAssured Limited The Food Park ( Craigavon, NIR ) | Tracewell Power, Inc. ( Westerville, OH ) |
| Trac International Corp. ( Atlanta, GA ) | TraceCompany Aps | |