| Tornadic Debris Signature | Academic & Science |
| Traverse des Sioux Library System | Academic & Science |
| Total Dissolved Salts | Academic & Science |
| Total Debt Service | Accounts and Finance |
| Tax Deduction At Source | Accounts and Finance |
| Thinker, Doer, and Seller | Business |
| Tomchak Database Solutions | Business |
| Tourist Diplomat Sales | Business |
| Tokyo Disney Sea | Business |
| TopDown Solutions, Inc. | Business |
| Thompson Dorfman Sweatman | Business |
| Total Domestic Sales | Business |
| Technical Database Services, Inc. | Business |
| Telephone and Data Systems, Inc. | Business |
| Talent Data Systems | Business |
| Tripod Data Systems | Business |
| Telephone & Data Systems, Incorporated | Business |
| Total Debt Ratio | Business |
| TD Split Incorporated (de-listed) | Business |
| Trainee Decision Scientist | Business |
| Tax Deferred Solutions | Business |
| Total Dissolved Solids | Chemistry |
| Thermal Desorption Spectrum | Chemistry |
| True Dimensional Sound | Community |
| Talent Development Squad | Community |
| Travel Document Systems | Community |
| Team Development for Sitecore | Community |
| Team Development for | Community |
| Trevor Day School | Community |
| The Design School | Community |
| Trash Data Segment | Computer Assembly Language |
| Transposition Driven Scheduling | Computing |
| Trojan Defense Suite | Computing |
| Technical Data Server | Computing |
| Turbo Debugger Symbol | Computing |
| Tagged Delimited String | Computing |
| Tabular Data Stream | Computing |
| Transactional Data Solutions | Computing |
| Tivoli Directory Server | Computing |
| Tivoli Decision Support | Computing |
| Transit Delay Selection | Computing |
| Terra Del Sol | Earth Science |
| Thermal Desorption Spectroscopy | Electronics |
| Transient Discriminating Surge | Electronics |
| Transient Discriminating Suppressor | Electronics |
| Turbo Debugger Symbol Table | File Type |
| TAX Deducted at Source | Finance |
| The Dark Soldiers | General |
| To Do Something | General |
| Time Domain Sensor | General |
| Tower Defense Simulator | General |
| Traffic Direction Systems | General |
| Time Distribution System | General |
| Table Data Stream | General |
| Trump Double Standards | General |
| Thermal Desorption System | General |
| Transcor Data Services | General |
| Thoroughly Descriptive Story | General |
| Turbo Diesel Super | General |
| Theft Deterrent System | General |
| Traction Drive Systems | General |
| Top Doorslammer | General |
| Turbo Diesel Special | General |
| Toyota Diagnostic Scanner | General |
| Top Driving School | General |
| Track Day Specials | General |
| Tierra del Sol Desert Safari | General |
| Truck Driving School | General |
| Tire Deflation System | General |
| Traffic Data Sensor | General |
| Technical Data Sheet | General |
| THREDDS Data Server | General |
| Temperature Detect Switch | General |
| tal Dissolved Solids | General |
| Turbocharging with Downsizing | General |
| Tag Data Standard | General |
| Teens in the Driver Seat | General |
| Texas Disposal Systems | General |
| Teen Driver Study | General |
| Techline Data Service | General |
| Transitional Data Services | General |
| Teenage Driver Syndrome | General |
| Telephone and Data Systems | General |
| Toyota Driving School | General |
| Truck Dispatch Services | General |
| The Daily Show | General |
| The Drivers Society | General |
| tal Debt Service | General |
| Truck Driving Simulator | General |
| Trans Driver Stress Scale | General |
| The Decal Source | General |
| Time Data Security | General |
| Telephone and Data | General |
| Tierra Del Sol | General |
| Tug Drive Solution | General |
| Total Dissolved Substances | General |
| Tour de Suisse | General |
| Transform Distribution Server | General |
| Thermal Diffuse Scattering | General |
| Time Distance Shielding | General |
| Trusted Data Solutions | General |
| Threat Defense System | General |
| Target Designation System | General |
| Test Delivery System | General |
| Transport Distribution Services | General |
| Trump Derangement Syndrome | General |
| Transcript Delivery System | General |
| Treatment Data System | General |
| Total Document Solutions | General |
| Trial Defense Service | Governmental |
| Tenancy Deposit Scheme | Governmental |
| Travel Document System | Governmental |
| Tone and Digit Sender | Governmental |
| Tonga Defence Services | Governmental |
| Transportation Data Sampler | Governmental |
| Total Diet Study | Governmental |
| Temporary Duty Station | Governmental |
| Transportation Data Source | Governmental |
| Traverse des Sioux | International |
| Triangulation Data Structure | Maths |
| Ter Die Sumendum | Medical |
| TransDerivational Search | Medical |
| Trudeau Derangement Syndrome | Medical |
| Three Times Daily | Medical |
| Ter Die Sumendus (three times a day) | Medical |
| Ter Die Sumendum (three times a day) | Medical |
| ter die sumendum - Three Times Daily | Medical |
| Travelers' Diarrhea Sequelae | Medical |
| Trump Disorder Syndrome | Medical |
| Tactical Data System | Military and Defence |
| Training Development Study | Military and Defence |
| Training Device System | Military and Defence |
| Tradoc Documentation System | Military and Defence |
| Total Distribution System | Military and Defence |
| Training Depot Station | Military and Defence |
| The Drunk Snipers | Military and Defence |
| Temperature Detection System | Military and Defence |
| The Death Squad | Military and Defence |
| Team Data Server | Networking |
| Tex Directory Structure | Networking |
| Trojan Defense Systems | Softwares |
| Technical Design Specifications | Softwares |
| Technology Demonstration Satellite | Space Science |
| Test Data System | Space Science |
| Time-Driven Switching | Technology |