| TRTN | | Services-Equipment Rental & Leasing, NEC | 1660734 |
| TRTX | | Real Estate Investment Trusts | 1630472 |
| TRU | | Services-Consumer Credit Reporting, Collection Agencies | 1552033 |
| TRUE | | Services-Computer Programming, Data Processing, Etc. | 1327318 |
| TRUG | | Sporting & Athletic Goods, NEC | 1857086 |
| TRUP | | Hospital & Medical Service Plans | 1371285 |
| TRV | | Fire, Marine & Casualty Insurance | 86312 |
| TRVG | | Services-Computer Processing & Data Preparation | 1683825 |
| TRVI | | Pharmaceutical Preparations | 1563880 |
| TRWD | | Food and Kindred Products | 1916558 |
| TRX | | Gold and Silver Ores | 1173643 |
| TRXA | | Finance Services | 1437750 |
| TS | | Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) | 1190723 |
| TSAT | | Communications Services, NEC | 1845840 |
| TSBK | | Savings Institutions, Not Federally Chartered | 1046050 |
| TSCFY | | - | 1555815 |
| TSCO | | Retail-Building Materials, Hardware, Garden Supply | 916365 |
| TSE | | Plastic Materials, Synth Resins & Nonvulcan Elastomers | 1519061 |
| TSEM | | Semiconductors & Related Devices | 928876 |
| TSHA | | Biological Products, (No Diagnostic Substances) | 1806310 |
| TSI | | - | 809559 |
| TSKFF | | - | 1803800 |
| TSLA | | Motor Vehicles & Passenger Car Bodies | 1318605 |
| TSLVF | | - | 1852753 |
| TSLX | | - | 1508655 |
| TSM | | Semiconductors & Related Devices | 1046179 |
| TSN | | Poultry Slaughtering and Processing | 100493 |
| TSNDF | | Agricultural Production-Crops | 1778129 |
| TSOL | | Commodity Contracts Brokers & Dealers | 2028834 |
| TSQ | | Radio Broadcasting Stations | 1499832 |
| TSSI | | Services-Management Consulting Services | 1320760 |
| TT | | Auto Controls For Regulating Residential & Comml Environments | 1466258 |
| TTAM | | Mining & Quarrying of Nonmetallic Minerals (No Fuels) | 2035304 |
| TTAN | | Services-Prepackaged Software | 1638826 |
| TTC | | Lawn & Garden Tractors & Home Lawn & Gardens Equip | 737758 |
| TTD | | Services-Computer Programming, Data Processing, Etc. | 1671933 |
| TTE | | Crude Petroleum & Natural Gas | 879764 |
| TTEC | | Services-Help Supply Services | 1013880 |
| TTEI | | Services-Educational Services | 2053475 |
| TTEK | | Services-Engineering Services | 831641 |
| TTGT | | Telegraph & Other Message Communications | 2018064 |
| TTI | | Crude Petroleum & Natural Gas | 844965 |
| TTIPF | | - | 1877778 |
| TTMI | | Printed Circuit Boards | 1116942 |
| TTRX | | Pharmaceutical Preparations | 2023016 |
| TTSH | | Retail-Home Furniture, Furnishings & Equipment Stores | 1552800 |
| TTWO | | Services-Prepackaged Software | 946581 |
| TU | | Radiotelephone Communications | 868675 |
| TUNGF | | - | 2049560 |
| TURB | | Miscellaneous Electrical Machinery, Equipment & Supplies | 1963439 |
