| The Classical Academy | Academic & Science |
| Trinity Christian Academy | Academic & Science |
| tricarboxylic acid and | Academic & Science |
| trichloroacetic acid and | Academic & Science |
| Trichloracetic Acid A | Academic & Science |
| Time Constrained Assessment | Academic & Science |
| Tactical Character Academy | Academic & Science |
| Tricholoracetic Acid And | Academic & Science |
| Technician In Costing and Accounting | Accounts and Finance |
| Tennant Creek | Airport Code |
| Thomas Comitta Associates, Inc | Business |
| Trans Canada Airlines | Business |
| Telcom Consulting Associates | Business |
| The Career Academy | Business |
| Thermo Cardiosystems, Inc. | Business |
| Tank Coil Assembly | Business |
| Title Council of America | Business |
| TransCanada PipeLines Limited | Business |
| Truckload Carriers Association | Business |
| Terrible Career Advice | Business |
| Trichloroacetic Acid | Chemistry |
| Train Collectors Association | Community |
| Tempe Center for the Arts | Community |
| Total Community Action | Community |
| Tilt Up Concrete Association | Community |
| Taos Center for the Arts | Community |
| Texas Counseling Association | Community |
| Tennis Club of Albuquerque | Community |
| Thoroughbred Charities of America | Community |
| Tamil Cultural Association of Kenya | Community |
| Texas Communist Association | Community |
| Train Collectors Association's | Community |
| Trading Community Architecture | Community |
| The Christian Academy | Community |
| The Community Agency | Community |
| Tennessee Chiropractic Association | Community |
| Texas Chiropractic Association | Community |
| Tennessee Counseling Association | Community |
| Taos Community Auditorium | Community |
| Television Critics Association | Community |
| Teen Choice Awards | Community |
| The Constantine Answer | Community |
| Taipei Computer Association | Community |
| Test Centre Administrator | Community |
| Telecommunications Computer Architecture | Computer Hardware |
| The Commando Army | Computing |
| Twin Cache Architecture | Computing |
| Transmit Cell Available | Computing |
| Thin Client Application | Computing |
| Total Cost of Acquisition | Computing |
| Thin Client Adapter | Computing |
| Tivoli Common Agent | Computing |
| Touch Count Algorithm | Computing |
| Telecommunications Association | Computing |
| Technology Competency Assessment | Computing |
| Task Control Area | Computing |
| Technical Centre for Agricultural and Rural Cooperation | General |
| Turkish Coalition of America | General |
| Texas Commission on the Arts | General |
| Textual Content Analysis | General |
| Tal Constituent Analysis | General |
| To Come Again | General |
| Tech Coast Angels | General |
| Tally and Completely Awesome | General |
| Thermostatically Controlled Air | General |
| Track Control Arm | General |
| Traction Control Arm | General |
| Technical Corrections Act | General |
| Texas Corvette Association | General |
| Trabant Club Austria | General |
| Test Calibration Assembly | General |
| Trajectory Conversion Algorithm | General |
| Tucson Corvair Association | General |
| Tri Chevy Association | General |
| Toluca Car Assembly | General |
| Transport Certification Australia | General |
| Touring Car A | General |
| Toyota Corolla Altis | General |
| Taxe de Circulation Annuelle | General |
| Throttle Control Assembly | General |
| Trastornos de Conducta Alimentaria | General |
| Technical Cable Applications | General |
| Transaction Cost Analysis | General |
| Total Cost of Accession | General |
| Temporary Cash Assistance | General |
| Trichloroanisole | General |
| Titanium Carbon Aluminium | General |
| Tensor Composition Analysis | General |
| Telecommunication Computer Architecture | General |
| Tackle Collectors of Arkansas | General |
| Traffic Conditioning Agreement | General |
| The Curse Of Alex | General |
| Tennessee Chess Association | General |
| Texas Chess Association | General |
| Toronto Construction Association | General |
| Taxi Centrale Amsterdam | Governmental |
| Transportation Corridor Agencies | Governmental |
| Trusted Connectivity Alliance | Governmental |
| Traffic Control Airport | Governmental |
| Terminal Control Area | Governmental |
| Tax Code Area | Governmental |
| The Conspiracy Alliance | Governmental |
| Tile Council Of America | Governmental |
| Tennessee Code Annotated | Governmental |
| TANCHHA | Indian Railway Station |
| trichloroacetic acidor | Medical |
| TriCyclic Antidepressants | Medical |
| Teen Cancer America | Medical |
| Tricyclic Antidepressant | Medical |
| Transient Cerebral Accident (mini-stroke) | Medical |
| Totally Crushed Again | Messaging |
| Training Chat Archive | Messaging |
| Traditional Combatant Commander Activity | Military and Defence |
| Tactical Commander Afloat | Military and Defence |
| Tradoc Contracting Agency | Military and Defence |
| Transformational Communications Architecture | Networking |
| Target Channel Adapter | Networking |
| Twin Cities Academy | Regional |
| Tennant Creek, Northern Territory, Australia | Regional |
| Trading Community Architechure | Softwares |
| Thrust Chamber Assembly | Space Science |
| Translation Controller Assembly | Space Science |
| Time of Closest Approach | Space Science |
| Tennisball Cricket Association | Sports |
| Treasure Coast Allstars | Sports |
| Technology Channel Association | Technology |
| Threshold Crossing Alert | Telecommunication |
| Telecom Computing Architecture | Telecommunication |
