| SIC | C | Description | Quantity | DBG |
| I | T J MAXX | 550 | 660 | |
| 571972 | TABLE CLOTHS & COVERS | 19 | 23 | |
| 502320 | TABLE PADS (WHOLESALE) | 219 | 263 | |
| 342910 | TABLE PARTS-MANUFACTURERS | 13 | 16 | |
| 509151 | TABLE TENNIS EQUIPMENT & SUPLS (WHOL) | 21 | 25 | |
| 799998 | TABLE TENNIS FACILITIES | 28 | 34 | |
| 571205 | TABLE TOPS | 450 | 540 | |
| 323114 | TABLE TOPS-MANUFACTURERS | 3 | 4 | |
| 502130 | TABLE TOPS-WHOLESALE | 1 | 1 | |
| 571204 | TABLES | 129 | 155 | |
| 502137 | TABLES-CUTTING & WORK (WHOLESALE) | 2 | 2 | |
| 502106 | TABLES-FOLDING (WHOLESALE) | 358 | 430 | |
| 251109 | TABLES-FOLDING-MANUFACTURERS | 4 | 5 | |
| 735918 | TABLES-RENTING | 399 | 479 | |
| 283410 | TABLET MAKERS-PHARM-FOOD ETC (MFRS) | 3 | 4 | |
| 737411 | TABULATING SERVICE | 6 | 7 | |
| 553121 | TACHOMETERS | 36 | 43 | |
| 594163 | TACK | 354 | 425 | |
| T | TACO BELL | 4819 | 5783 | |
| W | TACO JOHN'S | 407 | 488 | |
| 224112 | TAG STRINGING (MANUFACTURERS) | 8 | 10 | |
| 267902 | TAGS-MANUFACTURERS | 589 | 707 | |
| 513135 | TAGS-WHOLESALE | 1 | 1 | |
| 829957 | TAILORING INSTRUCTION | 3 | 4 | |
| 569919 | TAILORS | 11765 | 14118 | |
| 721908 | TAILORS-ALTERATION & REPAIRING | 7 | 8 | |
| 721907 | TAILORS-MEN'S | 292 | 350 | |
| 508739 | TAILORS-TRIMMINGS & SUPPLIES (WHOL) | 80 | 96 | |
| 721912 | TAILORS-WHOLESALE | 22 | 26 | |
| 329503 | TALC (MANUFACTURERS) | 18 | 22 | |
| 792206 | TALENT AGENCIES & CASTING SERVICES | 957 | 1148 | |
| 207601 | TALLOW (MANUFACTURERS) | 36 | 43 | |
| 514934 | TAMALES (WHOLESALE) | 147 | 176 | |
| 508820 | TANK CARS (WHOLESALE) | 22 | 26 | |
| 769934 | TANK CLEANING | 962 | 1154 | |
| 289920 | TANK CLEANING EQUIP-MFRS & SUPLS (MFRS) | 1 | 1 | |
| 179108 | TANK ERECTION | 2 | 2 | |
| 344399 | TANK HEADS (MANUFACTURERS) | 49 | 59 | |
| 171123 | TANK INSTALLATION | 638 | 766 | |
| 769988 | TANK LINING & COATING | 392 | 470 | |
| 382308 | TANK MEASURING DEVICES (MANUFACTURERS) | 10 | 12 | |
| 179944 | TANK REMOVAL | 888 | 1066 | |
| 873428 | TANK STRAPPING & CALIBRATION | 8 | 10 | |
| 738929 | TANK TESTING & INSPECTION | 708 | 850 | |
| 421228 | TANK TRUCK SERVICE | 75 | 90 | |
| 999967 | TANK WAGON SERVICE | 2 | ||
| 3795 | TANKS & TANK COMPONENTS | 193 | 232 | |
| 379598 | TANKS & TANK COMPONENTS (MANUFACTURERS) | 193 | 232 | |
| 508807 | TANKS (WHOLESALE) | 113 | 136 | |
| 179945 | TANKS-ABANDONED-FILLED | 131 | 157 | |
| 503916 | TANKS-CONCRETE (WHOLESALE) | 119 | 143 | |
| 508341 | TANKS-DRINKING LIVESTOCK | 1 | 1 | |
| 508804 | TANKS-FIBER, GLASS, PLASTIC, ETC (WHOL) | 790 | 948 | |
| 344305 | TANKS-MANUFACTURERS | 330 | 396 | |
| 508806 | TANKS-METAL (WHOLESALE) | 1344 | 1613 | |
| 735901 | TANKS-RENTAL | 4 | 5 | |
| 179923 | TANKS-REPAIRING | 410 | 492 | |
| 508808 | TANKS-USED (WHOLESALE) | 42 | 50 | |
| 244902 | TANKS-WOODEN (MANUFACTURERS) | 21 | 25 | |
| 311101 | TANNERS (MANUFACTURERS) | 555 | 666 | |
| J | TANNERS EQUIPMENT & SUPPLIES | 45 | 54 | |
| 286102 | TANNERS-OIL (MANUFACTURERS) | 5 | 6 | |
| 509120 | TANNING EQUIPMENT-HOME & OFFICE (WHOL) | 7 | 8 | |
| 729944 | TANNING SALONS | 24547 | 29456 | |
| 509114 | TANNING SALONS EQUIP & SUPPLIES-WHOL | 845 | 1014 | |
| 399934 | TANNING SALONS EQUIPMENT-MANUFACTURERS | 93 | 112 | |
| 333904 | TANTALUM (MANUFACTURERS) | 9 | 11 | |
| 357903 | TAPE APPLYING & DISPENSING MACHS (MFRS) | 105 | 126 | |
| 573104 | TAPE RECORDERS/PLAYERS-SOUND/VIDEO EQPT | 128 | 154 | |
| 365109 | TAPE RECORDERS/PLAYERS-SOUND-MFRS | 9 | 11 | |
| 762208 | TAPE RECORDERS/PLAYERS-SOUND-SUPLS/PRTS | 10 | 12 | |
| 762206 | TAPE RECORDERS/PLAYERS-SOUND-SVC & RPR | 90 | 108 | |
| 506436 | TAPE RECORDERS/PLAYERS-SOUND-WHOLESALE | 11 | 13 | |
| 506508 | TAPES (WHOLESALE) | 260 | 312 | |
| 508536 | TAPES-ADHESIVE (WHOLESALE) | 803 | 964 | |
| 511228 | TAPES-ADHESIVE-DISPENSERS (WHOLESALE) | 38 | 46 | |
| 267206 | TAPES-INDUSTRIAL-MANUFACTURERS | 15 | 18 | |
| 224108 | TAPES-LABELING (MANUFACTURERS) | 3 | 4 | |
| 519808 | TAPES-MASKING (WHOLESALE) | 13 | 16 | |
| 399953 | TAPES-MEASURING-MANUFACTURERS | 2 | 2 | |
| 267207 | TAPES-PRESSURE SENSITIVE (MANUFACTURERS) | 19 | 23 | |
| 573503 | TAPES-SOUND & VIDEO-PRERECORDED | 631 | 757 | |
| 571907 | TAPESTRIES | 69 | 83 | |
| 502346 | TAPESTRIES-WHOLESALE | 1 | 1 | |
| P | TAPPAN | 10 | 12 | |
| P | TAPPAN | 3 | 4 | |
| P | TAPPAN | 26 | 31 | |
| P | TAPPAN | 1 | 1 | |
| 508775 | TAPPING COMPOUNDS (WHOLESALE) | 2 | 2 | |
| 508564 | TAPS & DIES (WHOLESALE) | 22 | 26 | |
| 3 | TAPS-EXTRACTING | 21 | 25 | |
| 503309 | TAR & TAR PRODUCTS (WHOLESALE) | 22 | 26 | |
| H | TARGET STORES | 707 | 848 | |
| 473115 | TARIFF BUREAUS | 16 | 19 | |
| 239407 | TARPAULINS-MANUFACTURERS | 136 | 163 | |
| 509911 | TARPAULINS-WHOLESALE | 914 | 1097 | |
| 224106 | TASSELS (MANUFACTURERS) | 12 | 14 | |
| 729943 | TATTOOING | 2923 | 3508 | |
| 508776 | TATTOOING EQUIPMENT & SUPPLIES (WHOL) | 8 | 10 | |
| 801107 | TATTOOS-REMOVED | 216 | 259 | |
| 3 | TAX COLLECTORS | 64 | 77 | |
| 872105 | TAX CONSULTANTS | 5504 | 6605 | |
| 274117 | TAX PUBLICATIONS (MANUFACTURERS) | 5 | 6 | |
| 729101 | TAX RETURN PREPARATION & FILING | 60205 | 72246 | |
| 7291 | TAX RETURN PREPARATION SERVICES | 60289 | 72347 | |
| 729102 | TAX RETURN TRANSMISSION-ELECTRONIC | 270 | 324 | |
| W | TAXATION | 4560 | 5472 | |
| 501222 | TAXICAB BROKERS | 5 | 6 | |
| 4121 | TAXICABS | 7507 | 9008 | |
| 412101 | TAXICABS & TRANSPORTATION SERVICE | 7465 | 8958 | |
| 553134 | TAXICABS EQUIPMENT & SUPPLIES | 2 | 2 | |
| 769904 | TAXIDERMISTS | 4480 | 5376 | |
| E | TAXIDERMISTS' EQUIPMENT & SUPPLIES | 110 | 132 | |
| 824917 | TAXIDERMY INSTRUCTION | 7 | 8 | |
| T | TCBY | 423 | 508 | |
| 514960 | TEA BAG PACKERS (WHOLESALE) | 13 | 16 | |
| 581236 | TEA ROOMS | 60 | 72 | |
| 736109 | TEACHERS' AGENCIES | 116 | 139 | |
| 369907 | TEACHING MACHINES & SYSTEMS (MFRS) | 9 | 11 | |
| 508468 | TEAR GAS EQUIPMENT & SUPPLIES (WHOL) | 42 | 50 | |
| 514926 | TEA-WHOLESALE | 242 | 290 | |
| 733612 | TECHNICAL ILLUSTRATIONS | 21 | 25 | |
| 899906 | TECHNICAL MANUAL PREPARATION | 695 | 834 | |
| 899935 | TECHNICAL WRITING | 31 | 37 | |
| 873141 | TECHNOLOGISTS-APPLIED SCIENCES | 4 | 5 | |
| 873110 | TECHNOLOGY ASSISTANCE PROGRAMS | 54 | 65 | |
| 3 | TECUMSEH | 60 | 72 | |
| T | TECUMSEH | 1425 | 1710 | |
| 3 | TECUMSEH | 4845 | 5814 | |
| 799723 | TEE TIMES | 2 | 2 | |
| 864118 | TEEN CLUBS | 8 | 10 | |
| 832261 | TEEN HOT LINES | 3 | 4 | |
| 347925 | TEFLON (MANUFACTURERS) | 5 | 6 | |
| 506563 | TELECOMMUNICATION EQUIP/SYST-WHOL/MFRS | 9 | 11 | |
| 874815 | TELECOMMUNICATIONS CONSULTANTS | 761 | 913 | |
| 173107 | TELECOMMUNICATIONS CONTRACTORS | 781 | 937 | |
| 506529 | TELECOMMUNICATIONS EQUIP-DISABLED (WHOL) | 105 | 126 | |
| 173113 | TELECOMMUNICATIONS EQUIPMENT | 317 | 380 | |
| 173122 | TELECONFERENCING EQUIPMENT | 29 | 35 | |
| 738973 | TELECONFERENCING SERVICE | 310 | 372 | |
| 482205 | TELEGRAM SERVICE | 187 | 224 | |
| 4822 | TELEGRAPH & OTHER COMMUNICATIONS | 13622 | 16346 | |
| 482202 | TELEGRAPH SERVICE | 759 | 911 | |
| 738912 | TELEMARKETING SERVICES | 2570 | 3084 | |
| 506527 | TELEMETERING SYSTEMS & EQUIPMENT (WHOL) | 34 | 41 | |
| 3661 | TELEPHONE & TELEGRAPH APPARATUS | 924 | 1109 | |
| 366198 | TELEPHONE & TELEGRAPH APPARATUS (MFRS) | 579 | 695 | |
| 162306 | TELEPHONE & TELEVISION CABLE CONTRACTORS | 1040 | 1248 | |
| 738903 | TELEPHONE ANSWERING SERVICE | 5702 | 6842 | |
| 366101 | TELEPHONE AUTO ANSWER EQUIPMENT-MFRS | 16 | 19 | |
| 506438 | TELEPHONE AUTO ANSWER EQUIPMENT-WHOL | 292 | 350 | |
| 762929 | TELEPHONE AUTO ANSWER EQUIP-SERVICING | 27 | 32 | |
| 366103 | TELEPHONE BOOTHS (MANUFACTURERS) | 5 | 6 | |
| 4813 | TELEPHONE COMMUNICATIONS EXCEPT RADIO | 14139 | 16967 | |
| 481302 | TELEPHONE COMMUNICATIONS SERVICES | 6700 | 8040 | |
| 481304 | TELEPHONE COMPANIES | 5549 | 6659 | |
| 481305 | TELEPHONE COMPANIES-NON-WIRE LINE | 1 | 1 | |
| 874850 | TELEPHONE CONSULTANTS | 454 | 545 | |
| 731111 | TELEPHONE DIRECTORY ADVERTISING | 5 | 6 | |
| 506511 | TELEPHONE EQUIP/SYSTS-SUPLS/PARTS (WHOL) | 418 | 502 | |
| 599904 | TELEPHONE EQUIPMENT & SUPPLIES | 10938 | 13126 | |
| 366102 | TELEPHONE EQUIPMENT & SYSTEMS-MFRS | 330 | 396 | |
| 481308 | TELEPHONE EQUIPMENT & SYSTEMS-RENTING | 58 | 70 | |
| 762923 | TELEPHONE EQUIPMENT & SYSTEMS-SVC/REPAIR | 5229 | 6275 | |
| 506510 | TELEPHONE EQUIPMENT & SYSTEMS-WHOLESALE | 671 | 805 | |
| 8 | TELEPHONE MESSAGES & MUSIC ON HOLD | 80 | 96 | |
| 729989 | TELEPHONE RECORDED ANNOUNCEMENTS | 51 | 61 | |
| 829974 | TELEPHONE TRAINING | 7 | 8 | |
| 506534 | TELEPHONE-COIN & CARD OPERATED (WHOL) | 414 | 497 | |
| 173108 | TELEPHONE-INSTALLATIONS | 299 | 359 | |
| 162312 | TELEPHONE-WIRING & REPAIR | 98 | 118 | |
| 599911 | TELESCOPES | 341 | 409 | |
| 382703 | TELESCOPES-MANUFACTURERS | 12 | 14 | |
| 506512 | TELETYPEWRITER COMMS EQUIPMENT (WHOL) | 15 | 18 | |
| 482204 | TELETYPEWRITER COMMUNICATIONS SERVICE | 41 | 49 | |
| 506513 | TELETYPEWRITER SUPPLIES (WHOLESALE) | 7 | 8 | |
| 824911 | TELEVISION & RADIO BROADCASTING SCHOOLS | 44 | 53 | |
| 573102 | TELEVISION & RADIO SUPPLIES & PARTS-RTL | 445 | 534 | |
| 506506 | TELEVISION & RADIO SUPPLIES & PARTS-WHOL | 104 | 125 | |
| 573103 | TELEVISION & RADIO-DEALERS | 14410 | 17292 | |
| 365110 | TELEVISION & RADIO-MANUFACTURERS | 25 | 30 | |
| 762202 | TELEVISION & RADIO-SERVICE REPAIR | 13649 | 16379 | |
| 506416 | TELEVISION & RADIO-WHOLESALE | 138 | 166 | |
| 367911 | TELEVISION ANTENNA SYSTEMS-MANUFACTURERS | 2 | 2 | |
| 506541 | TELEVISION ANTENNA SYSTEMS-WHOLESALE | 4 | 5 | |
| 4833 | TELEVISION BROADCASTING STATIONS | 3378 | 4054 | |
| 762218 | TELEVISION EQUIPMENT-CABLE-REPAIRING | 11 | 13 | |
| 366309 | TELEVISION MASTER ANTENNA SYSTEMS-MFRS | 6 | 7 | |
| 506542 | TELEVISION MASTER ANTENNA SYSTEMS-WHOL | 3 | 4 | |
| 367102 | TELEVISION PICTURE TUBES-MANUFACTURERS | 13 | 16 | |
| 782201 | TELEVISION PROGRAM DISTRIBUTORS | 153 | 184 | |
| 792205 | TELEVISION PROGRAM PRODUCERS | 1946 | 2335 | |
| 781912 | TELEVISION PROGRAM PRODUCERS-SVCS/SUPLS | 29 | 35 | |
| 874867 | TELEVISION SERVICE-CONSULTING | 5 | 6 | |
| 506530 | TELEVISION STATION EQUIPMENT (WHOL) | 151 | 181 | |
| 366306 | TELEVISION STATION EQUIPMENT-MFRS | 34 | 41 | |
| 874895 | TELEVISION STATION PLANNING | 4 | 5 | |
| 792208 | TELEVISION STATION REPRESENTATIVES | 211 | 253 | |
| 483301 | TELEVISION STATIONS & BROADCASTING CO | 3368 | 4042 | |
| 506525 | TELEVISION STUDIO EQUIPMENT (WHOLESALE) | 84 | 101 | |
| 484105 | TELEVISION SYST-CLOSED CIRCUIT TLCSTNG | 14 | 17 | |
| 506515 | TELEVISION SYSTS/EQPT-CLSD CRCT (WHOL) | 2338 | 2806 | |
| 571230 | TELEVISION TABLES & STANDS | 1 | 1 | |
| 484101 | TELEVISION-CABLE & CATV | 7570 | 9084 | |
| 484104 | TELEVISION-CABLE & CATV-EQUIP & SUPLS | 110 | 132 | |
| 366308 | TELEVISION-CABLE & CATV-MANUFACTURERS | 17 | 20 | |
| 349607 | TELEVISION-CABLE-MANUFACTURERS | 29 | 35 | |
| 593223 | TELEVISION-DEALERS-USED | 147 | 176 | |
| 781206 | TELEVISION-FILMS PRODUCERS & DISTRS | 284 | 341 | |
| 573121 | TELEVISION-GIANT SCREEN | 447 | 536 | |
| 365111 | TELEVISION-MANUFACTURERS | 8 | 10 | |
| 792223 | TELEVISION-MOBILE PRODUCTION VEHICLES | 4 | 5 | |
| 735920 | TELEVISION-RENTAL | 5770 | 6924 | |
| 573120 | TELEVISION-SATELLITE ANTENNA SYSTEMS | 6 | 7 | |
| 781209 | TELEVISION-TAPE PRODUCERS & STUDIOS | 41 | 49 | |
| 506419 | TELEVISION-WHOLESALE | 21 | 25 | |
| 506553 | TELEX EQUIPMENT & SUPPLIES (WHOLESALE) | 10 | 12 | |
| 382307 | TEMPERATURE MEASURING MATERIALS (MFRS) | 98 | 118 | |
| 382921 | TEMPLATES (MANUFACTURERS) | 14 | 17 | |
| T | TEMPSTAR | 203 | 244 | |
| T | TEMPSTAR/WHIRLPOOL | 254 | 305 | |
| 732305 | TENANT REFERENCE CHECKING SERVICE | 8 | 10 | |
| 162907 | TENNIS COURT CONSTRUCTION | 1016 | 1219 | |
| 179922 | TENNIS COURT ENCLOSURES | 108 | 130 | |
| 509152 | TENNIS COURT SUPPLIES & REPAIR (WHOL) | 64 | 77 | |
| 799703 | TENNIS COURTS-PRIVATE | 1298 | 1558 | |
| 799971 | TENNIS COURTS-PUBLIC | 949 | 1139 | |
| 394921 | TENNIS EQUIPMENT & SUPPLIES-MFRS | 18 | 22 | |
| 594110 | TENNIS EQUIPMENT & SUPPLIES-RETAIL | 1188 | 1426 | |
| 799970 | TENNIS INSTRUCTION | 816 | 979 | |
| 394928 | TENNIS RACKET STRINGING MACHINES (MFRS) | 6 | 7 | |
| 509113 | TENNIS SUPPLIES-WHOLESALE | 31 | 37 | |
| 239405 | TENTS-MANUFACTURERS | 19 | 23 | |
| 594109 | TENTS-RETAIL | 1167 | 1400 | |
| 509144 | TENTS-WHOLESALE | 2 | 2 | |
| 417398 | TERMINAL & SERVICE FACILITIES | 12 | 14 | |
| 4231 | TERMINAL-MOTOR FREIGHT TRANSPORTATION | 221 | 265 | |
| 4173 | TERMINAL-MOTOR VEHICLE TRANSPORTATION | 12 | 14 | |
| 364307 | TERMINALS-PHOSPHATE (MANUFACTURERS) | 4 | 5 | |
| 449103 | TERMINALS-RIVER & MARINE | 117 | 140 | |
| 503236 | TERRA COTTA (WHOLESALE) | 13 | 16 | |
| 325903 | TERRA COTTA-MANUFACTURERS | 2 | 2 | |
| 162928 | TERRACING | 3 | 4 | |
| 503220 | TERRAZZO (WHOLESALE) | 248 | 298 | |
| 503244 | TERRAZZO EQUIPMENT & SUPPLIES (WHOL) | 10 | 12 | |
| 1743 | TERRAZZO TILE MARBLE & MOSAIC WORK | 17155 | 20586 | |
| 221104 | TERRY CLOTH (MANUFACTURERS) | 3 | 4 | |
| 179968 | TEST BORINGS | 11 | 13 | |
| 874868 | TEST PREPARATION INSTRUCTION | 182 | 218 | |
| 274108 | TEST PUBLISHERS-VOCATIONAL/EDUCATIONAL | 79 | 95 | |
| 873109 | TESTING | 122 | 146 | |
| 874881 | TESTING (ACADEMIC) | 8 | 10 | |
| 873430 | TESTING (NON-DESTRUCTIVE) | 6 | 7 | |
| 873439 | TESTING (TOXIC MATERIAL & GASES) | 8 | 10 | |
| 382908 | TESTING APPARATUS-MANUFACTURERS | 260 | 312 | |
| 506309 | TESTING APPARATUS-WHOLESALE | 515 | 618 | |
| 873440 | TESTING EQUIPMENT-ENVIRONMENTAL | 15 | 18 | |
| 8734 | TESTING LABORATORIES | 11892 | 14270 | |
| Y | TEXACO | 5997 | 7196 | |
| 8 | TEXAS INSTRUMENTS (TI) | 135 | 162 | |
| 2393 | TEXTILE BAGS | 531 | 637 | |
| 239398 | TEXTILE BAGS (MANUFACTURERS) | 440 | 528 | |
| 513103 | TEXTILE BROKERS | 511 | 613 | |
| 874814 | TEXTILE CONSULTANTS | 155 | 186 | |
| 513105 | TEXTILE CONVERTING (WHOLESALE) | 437 | 524 | |
| 226901 | TEXTILE CONVERTING-MANUFACTURERS | 6 | 7 | |
| 738930 | TEXTILE DESIGNERS | 238 | 286 | |
| 516963 | TEXTILE DYERS (WHOLESALE) | 27 | 32 | |
| 229901 | TEXTILE FIBERS (MANUFACTURERS) | 144 | 173 | |
| 226101 | TEXTILE FINISHING (MANUFACTURERS) | 596 | 715 | |
| 2299 | TEXTILE GOODS NEC | 1189 | 1427 | |
| 229998 | TEXTILE GOODS NEC (MANUFACTURERS) | 781 | 937 | |
| 513142 | TEXTILE JOBBERS | 28 | 34 | |
| 3552 | TEXTILE MACHINERY | 1246 | 1495 | |
| 508495 | TEXTILE MACHINERY & PARTS (WHOLESALE) | 714 | 857 | |
| 355202 | TEXTILE MACHINERY & PARTS-MANUFACTURERS | 1197 | 1436 | |
| 22 | TEXTILE MILL PRODUCTS MFRS | 10405 | 12486 | |
| 229917 | TEXTILE MILL SUPPLIES-MANUFACTURERS | 7 | 8 | |
| 508540 | TEXTILE MILL SUPPLIES-WHOLESALE | 193 | 232 | |
| 222101 | TEXTILE MILLS | 883 | 1060 | |
| 508497 | TEXTILE PRINTERS (WHOLESALE) | 168 | 202 | |
| U | TEXTILE PRINTING EQUIPMENT & SUPPLIES | 24 | 29 | |
| 239912 | TEXTILE-MANUFACTURERS | 977 | 1172 | |
| 738934 | TEXTILE-MANUFACTURER'S REPRESENTATIVES | 229 | 275 | |
| 594922 | TEXTILES-RETAIL | 20 | 24 | |
| 513106 | TEXTILES-WHOLESALE | 592 | 710 | |
| & | TGI FRIDAY'S | 234 | 281 | |
| 171125 | THAWING SERVICE | 33 | 40 | |
| 792218 | THEATRE CONSULTANTS | 56 | 67 | |
| 792220 | THEATRE PARTIES-ARRANGED | 33 | 40 | |
| 783201 | THEATRES | 6708 | 8050 | |
| 581226 | THEATRES-DINNER | 93 | 112 | |
| 792207 | THEATRES-LIVE | 6166 | 7399 | |
| 792210 | THEATRICAL AGENCIES | 443 | 532 | |
| 792212 | THEATRICAL EQUIPMENT & SUPPLIES | 1136 | 1363 | |
| 399935 | THEATRICAL EQUIPMENT & SUPPLIES-MFRS | 16 | 19 | |
| 792209 | THEATRICAL MAKE-UP | 347 | 416 | |
| 792211 | THEATRICAL MANAGERS & PRODUCERS | 609 | 731 | |
| 7922 | THEATRICAL PRODUCERS & MISC SERVICES | 14565 | 17478 | |
| 824912 | THEATRICAL SCHOOLS | 43 | 52 | |
| 792226 | THEATRICAL TALENT INVENTORY SERVICE | 4 | 5 | |
| 506356 | THEATRICAL/STAGE LIGHTING EQUIP (WHOL) | 591 | 709 | |
| 364802 | THEATRICAL/STAGE LIGHTING-MANUFACTURERS | 62 | 74 | |
| 822102 | THEOLOGICAL SCHOOLS | 91 | 109 | |
| 804958 | THERAPEUTIC TREATMENTS | 2 | 2 | |
| 804932 | THERAPISTS-CORRECTIVE | 64 | 77 | |
| 804950 | THERAPY-GROUP | 31 | 37 | |
| 382203 | THERMOCOUPLES (MANUFACTURERS) | 193 | 232 | |
| 367402 | THERMOELECTRIC EQUIPMENT (MANUFACTURERS) | 11 | 13 | |
| 275904 | THERMOGRAPHERS | 203 | 244 | |
| 382925 | THERMOMETER WELLS (MANUFACTURERS) | 8 | 10 | |
| 504907 | THERMOMETERS (WHOLESALE) | 205 | 246 | |
| 382927 | THERMOMETERS-MANUFACTURERS | 16 | 19 | |
| 382926 | THERMOSTATIC BIMETALS (MANUFACTURERS) | 4 | 5 | |
| 507512 | THERMOSTATS (WHOLESALE) | 147 | 176 | |
| 899909 | THESIS SERVICE | 8 | 10 | |
| G | THINGS REMEMBERED | 755 | 906 | |
| 4 | THOM MC AN | 85 | 102 | |
| 513107 | THREAD (WHOLESALE) | 250 | 300 | |
| 2284 | THREAD MILLS | 214 | 257 | |
| 228403 | THREAD-CUTTING-LACE, FABRIC ETC (MFRS) | 4 | 5 | |
| 228402 | THREAD-MANUFACTURERS | 164 | 197 | |
| 355208 | THREAD-ROLLING CUTNG/GRNDNG EQUIP (MFRS) | 6 | 7 | |
| 345201 | THREAD-ROLLING, CUTTING/GRINDING (MFRS) | 114 | 137 | |
| 603502 | THRIFT & LOAN COMPANIES | 120 | 144 | |
| 593222 | THRIFT SHOPS | 9488 | 11386 | |
| 3 | THRIFTY | 548 | 658 | |
| 7 | THRIFTY | 448 | 538 | |
| 357912 | TICKET ISSUING MACHINES (MANUFACTURERS) | 22 | 26 | |
| 799973 | TICKET SALES-ENTERTAINMENT SPORTS | 1350 | 1620 | |
| 275906 | TICKETS & COUPONS-PRINTERS/SUPLS (MFRS) | 233 | 280 | |
| 221101 | TICKING (MANUFACTURERS) | 13 | 16 | |
| 232303 | TIE FACTORIES | 12 | 14 | |
| 561113 | TIE RACKS | 2 | 2 | |
| 349613 | TIES-WIRE & PLASTIC (MANUFACTURERS) | 4 | 5 | |
| 225101 | TIGHTS-MANUFACTURERS | 5 | 6 | |
| 571309 | TILE | 18 | 22 | |
| 174301 | TILE-CERAMIC-CONTRACTORS & DEALERS | 16496 | 19795 | |
| 503219 | TILE-CERAMIC-DISTRIBUTORS | 1565 | 1878 | |
| 325301 | TILE-CERAMIC-MANUFACTURERS | 633 | 760 | |
| 769914 | TILE-CERAMIC-REPAIRING & REFINISHING | 259 | 311 | |
| 503233 | TILE-MARBLE-DISTRIBUTORS | 11 | 13 | |
| 328105 | TILE-MARBLE-MANUFACTURERS | 10 | 12 | |
| 175201 | TILE-NON-CERAMIC-CONTRACTORS & DEALERS | 703 | 844 | |
| 502326 | TILE-NON-CERAMIC-DISTRIBUTORS | 98 | 118 | |
| 503108 | TIMBER & TIMBERLAND COMPANIES (WHOL) | 3210 | 3852 | |
| 085104 | TIMBER CRUISERS | 60 | 72 | |
| 152133 | TIMBER FRAME HOMES | 4 | 5 | |
| 0811 | TIMBER TRACTS | 55 | 66 | |
| 081198 | TIMBER TRACTS | 48 | 58 | |
| 509941 | TIMBERS (WHOLESALE) | 1 | 1 | |
| 729946 | TIME & TEMPERATURE ANNOUNCEMENTS | 845 | 1014 | |
| 357909 | TIME CARDS RACKS & SUPPLIES-MFRS | 26 | 31 | |
| 173114 | TIME LOCKS | 10 | 12 | |
| 829969 | TIME MANAGEMENT TRAINING | 14 | 17 | |
| 729945 | TIME OF DAY SERVICE | 23 | 28 | |
| 573131 | TIME RECORDERS | 214 | 257 | |
| 357906 | TIME RECORDERS & SYSTEMS-MANUFACTURERS | 873 | 1048 | |
| 504425 | TIME RECORDERS-WHOLESALE | 430 | 516 | |
| 357905 | TIME STAMPS (MANUFACTURERS) | 103 | 124 | |
| 387303 | TIMING DEVICES-MANUFACTURERS | 9 | 11 | |
| 506364 | TIMING DEVICES-WHOLESALE | 84 | 101 | |
| 335605 | TIN (MANUFACTURERS) | 16 | 19 | |
| 335606 | TIN EDGING (MANUFACTURERS) | 3 | 4 | |
| 331213 | TIN PLATE (MANUFACTURERS) | 13 | 16 | |
| 176112 | TINNING | 30 | 36 | |
| 571952 | TINWARE | 5 | 6 | |
| 301198 | TIRE & INNER TUBE-MANUFACTURERS | 142 | 170 | |
| 501404 | TIRE ADDITIVES & SEALANTS (WHOLESALE) | 33 | 40 | |
| 501329 | TIRE CHANGING EQUIPMENT (WHOLESALE) | 88 | 106 | |
| 2296 | TIRE CORD & FABRICS | 46 | 55 | |
| 229698 | TIRE CORD & FABRICS (MANUFACTURERS) | 46 | 55 | |
| 509321 | TIRE DISPOSAL (WHOLESALE) | 45 | 54 | |
| 7534 | TIRE RETREADING & REPAIR SHOPS | 4056 | 4867 | |
| 753402 | TIRE SERVICE | 18 | 22 | |
| 753404 | TIRE-CUSTOMIZING & MODIFICATION | 16 | 19 | |
| 553123 | TIRE-DEALERS-RETAIL | 40195 | 48234 | |
| 501402 | TIRE-DEALERS-USED (WHOLESALE) | 3752 | 4502 | |
| 501401 | TIRE-DISTRIBUTORS | 1861 | 2233 | |
| 301101 | TIRE-MANUFACTURERS | 376 | 451 | |
| 753401 | TIRE-RETREADING & REPAIRING | 4022 | 4826 | |
| 501332 | TIRE-RETREADING/REPAIR-EQPT/SUPLS (WHOL) | 295 | 354 | |
| 301102 | TIRE-RETREADING/REPAIRING-EQPT/SUPL-MFRS | 13 | 16 | |
| 3011 | TIRES & INNER TUBES | 531 | 637 | |
| 5014 | TIRES & TUBES | 5574 | 6689 | |
| 553119 | TIRES-SOLID | 17 | 20 | |
| 281601 | TITANIUM (MANUFACTURERS) | 76 | 91 | |
| 6541 | TITLE ABSTRACT OFFICES | 14819 | 17783 | |
| 654102 | TITLE COMPANIES | 13560 | 16272 | |
| 654101 | TITLE EXAMINERS | 68 | 82 | |
| 6361 | TITLE INSURANCE | 1333 | 1600 | |
| 781919 | TITLING SERVICE-TV & MOTION PICTURE | 11 | 13 | |
| 0132 | TOBACCO | 30 | 36 | |
| 5194 | TOBACCO & TOBACCO PRODUCTS | 1944 | 2333 | |
| 519401 | TOBACCO BUYERS | 73 | 88 | |
| 013201 | TOBACCO GROWERS | 30 | 36 | |
| 355928 | TOBACCO GROWERS' EQUIP & SUPPLIES (MFRS) | 16 | 19 | |
| 515902 | TOBACCO LEAF-WHOLESALE | 42 | 50 | |
| 355927 | TOBACCO MACHINERY (MANUFACTURERS) | 19 | 23 | |
| 21 | TOBACCO PRODUCTS MFRS | 997 | 1196 | |
| 213101 | TOBACCO PRODUCTS-MANUFACTURERS | 327 | 392 | |
| 519404 | TOBACCO REHANDLERS (WHOLESALE) | 18 | 22 | |
| 2141 | TOBACCO STEMMING & REDRYING | 38 | 46 | |
| 214198 | TOBACCO STEMMING & REDRYING | 38 | 46 | |
| 5993 | TOBACCO STORES & STANDS | 4858 | 5830 | |
| 422106 | TOBACCO WAREHOUSES | 391 | 469 | |
| 591206 | TOILET ARTICLES | 45 | 54 | |
| 525113 | TOILET PARTITIONS | 1 | 1 | |
| 512209 | TOILET PREPARATIONS (WHOLESALE) | 45 | 54 | |
| P | TOILET SEATS | 24 | 29 | |
| 507434 | TOILET SEATS-WHOLESALE | 6 | 7 | |
| 308803 | TOILETS-COMPOSTING (MANUFACTURERS) | 3 | 4 | |
| 343102 | TOILETS-INCINERATING (MANUFACTURERS) | 5 | 6 | |
| 735922 | TOILETS-PORTABLE | 2600 | 3120 | |
| 308804 | TOILETS-PORTABLE-MANUFACTURERS | 2 | 2 | |
| 478506 | TOLL BRIDGES | 15 | 18 | |
| 514812 | TOMATOES-WHOLESALE | 15 | 18 | |
| 342313 | TONGS (MANUFACTURERS) | 4 | 5 | |
| 729993 | TONING BEDS | 1 | 1 | |
| 354407 | TOOL & DIE MAKERS | 4721 | 5665 | |
| 508413 | TOOL & DIE MAKERS EQUIP & SUPLS (WHOL) | 353 | 424 | |
| 521122 | TOOL & UTILITY SHEDS | 112 | 134 | |
| 507220 | TOOL CHESTS KITS BAGS ETC-WHOLESALE | 28 | 34 | |
| 244104 | TOOL CHESTS KITS/BAGS ETC-MANUFACTURERS | 10 | 12 | |
| 738915 | TOOL DESIGNERS | 527 | 632 | |
| 769936 | TOOL GRINDING-INDUSTRIAL | 814 | 977 | |
| W | TOOL HOLDERS | 42 | 50 | |
| 507213 | TOOLS (WHOLESALE) | 3787 | 4544 | |
| H | TOOLS MISCELLANEOUS TYPE | 55 | 66 | |
| 508458 | TOOLS-CARBIDE (WHOLESALE) | 72 | 86 | |
| 354604 | TOOLS-CARBIDE-COATING (MANUFACTURERS) | 4 | 5 | |
| 508453 | TOOLS-CUTTING (WHOLESALE) | 1616 | 1939 | |
| 525106 | TOOLS-CUTTING-RETAIL | 115 | 138 | |
| 508454 | TOOLS-ELECTRIC (WHOLESALE) | 4312 | 5174 | |
| 735986 | TOOLS-ELECTRIC-RENTING | 5 | 6 | |
| 762926 | TOOLS-ELECTRIC-REPAIRING & PARTS | 607 | 728 | |
| 525115 | TOOLS-EQUIPMENT & SUPPLIES | 36 | 43 | |
| 525102 | TOOLS-HAND | 837 | 1004 | |
| 342303 | TOOLS-HAND-MANUFACTURERS | 87 | 104 | |
| 508459 | TOOLS-HYDRAULIC (WHOLESALE) | 77 | 92 | |
| 342302 | TOOLS-MANUFACTURERS | 1638 | 1966 | |
| 508456 | TOOLS-PNEUMATIC (WHOLESALE) | 1492 | 1790 | |
| 354606 | TOOLS-PNEUMATIC-MANUFACTURERS | 12 | 14 | |
| 769997 | TOOLS-PNEUMATIC-REPAIRING | 49 | 59 | |
| 508511 | TOOLS-POWDER ACTUATED (WHOLESALE) | 262 | 314 | |
| 354605 | TOOLS-POWDER ACTUATED-MANUFACTURERS | 3 | 4 | |
| 354515 | TOOLS-PRECISION (MANUFACTURERS) | 41 | 49 | |
| 735921 | TOOLS-RENTING | 1726 | 2071 | |
| 769938 | TOOLS-REPAIRING & PARTS | 998 | 1198 | |
| 422511 | TOOLS-STORED | 1 | 1 | |
| 593221 | TOOLS-USED | 235 | 282 | |
| 284404 | TOOTH POWDERS & PASTES-MANUFACTURERS | 10 | 12 | |
| 512220 | TOOTH POWDERS & PASTES-WHOLESALE | 8 | 10 | |
| 511324 | TOOTHPICKS-WHOLESALE | 3 | 4 | |
| 7532 | TOP & BODY REPAIR & PAINT SHOPS | 83405 | 100086 | |
| 078207 | TOPSOIL | 4507 | 5408 | |
| 8 | TORO | 2991 | 3589 | |
| 8 | TORO | 5 | 6 | |
| 1 | TORO | 1757 | 2108 | |
| 355618 | TORTILLA & TAMALE MAKING EQUIP (MFRS) | 18 | 22 | |
| 514928 | TORTILLAS (WHOLESALE) | 488 | 586 | |
| 9 | TOSHIBA | 769 | 923 | |
| 3824 | TOTALIZING FLUID METERS/COUNTING DEVICE | 421 | 505 | |
| 382498 | TOTALIZING FLUID MTRS/CNTNG DEVICE (MFR) | 350 | 420 | |
| 539904 | TOTE BOXES PANS & TRAYS | 3 | 4 | |
| 4725 | TOUR OPERATORS | 6213 | 7456 | |
| 701109 | TOURIST ACCOMMODATIONS | 148 | 178 | |
| 799972 | TOURIST ATTRACTIONS | 2408 | 2890 | |
| 701108 | TOURIST COTTAGES & CABINS | 181 | 217 | |
| 702101 | TOURIST HOMES | 495 | 594 | |
| 472401 | TOURIST INFORMATION | 1889 | 2267 | |
| 472501 | TOURS-OPERATORS & PROMOTERS | 5516 | 6619 | |
| 472408 | TOURS-SOUND TAPE SYSTEMS | 5 | 6 | |
| 472504 | TOURS-WHOLESALE | 208 | 250 | |
| 553130 | TOW BARS | 28 | 34 | |
| 449201 | TOW BOAT SERVICE | 64 | 77 | |
| 571232 | TOWEL CABINETS | 2 | 2 | |
| 721301 | TOWEL SUPPLY SERVICE | 261 | 313 | |
| 225902 | TOWELS-CLOTH-MANUFACTURERS | 18 | 22 | |
| 571968 | TOWELS-CLOTH-RETAIL | 17 | 20 | |
| 502302 | TOWELS-CLOTH-WHOLESALE | 102 | 122 | |
| 344102 | TOWERS (MANUFACTURERS) | 560 | 672 | |
| 162317 | TOWERS-RADIO | 16 | 19 | |
| 162318 | TOWERS-REPAIRING | 9 | 11 | |
| 4492 | TOWING & TUGBOAT SERVICES | 876 | 1051 | |
| 501303 | TOWING EQUIPMENT-AUTOMOTIVE (WHOLESALE) | 431 | 517 | |
| 371110 | TOWING EQUIPMENT-AUTOMOTIVE-MFRS | 8 | 10 | |
| 449202 | TOWING-MARINE | 801 | 961 | |
| 754905 | TOWING-TRUCK | 213 | 256 | |
| 754924 | TOWING-TRUCK & AUTOMOTIVE-REFERRAL SVC | 3 | 4 | |
| 734942 | TOWNHOUSE MAINTENANCE CONTRACTORS | 10 | 12 | |
| 651401 | TOWNHOUSES | 431 | 517 | |
| 873132 | TOXICOLOGISTS | 20 | 24 | |
| 873209 | TOY CONSULTANTS | 18 | 22 | |
| L | TOYOTA | 176 | 211 | |
| T | TOYOTA | 1218 | 1462 | |
| 5092 | TOYS & HOBBY GOODS & SUPPLIES | 4507 | 5408 | |
| T | TOYS R US | 644 | 773 | |
| U | TOYS REPAIRING | 18 | 22 | |
| 394402 | TOYS-MANUFACTURERS | 508 | 610 | |
| 394401 | TOYS-MANUFACTURERS SUPPLIES (MFRS) | 68 | 82 | |
| 594517 | TOYS-RETAIL | 7461 | 8953 | |
| 509209 | TOYS-WHOLESALE | 1841 | 2209 | |
| 162927 | TRACKS & ATHLETIC FIELDS CONSTRUCTION | 3 | 4 | |
| 508307 | TRACTOR EQUIPMENT & PARTS (WHOLESALE) | 1233 | 1480 | |
| 501223 | TRACTOR EQUIPMENT & PARTS-USED (WHOL) | 2 | 2 | |
| 508304 | TRACTOR-DEALERS (WHOLESALE) | 5797 | 6956 | |
| 508320 | TRACTOR-DISTRIBUTORS | 53 | 64 | |
| 751301 | TRACTOR-RENTING & LEASING | 449 | 539 | |
| 769941 | TRACTOR-REPAIRING & SERVICE | 1933 | 2320 | |
| 526130 | TRACTORS-LAWN & GARDEN-DEALERS | 22 | 26 | |
| 754925 | TRACTOR-WRECKERS | 4 | 5 | |
| 473114 | TRADE CLEARING EXCHANGES | 34 | 41 | |
| 738987 | TRADE FAIRS & SHOWS | 674 | 809 | |
| 824921 | TRADE SCHOOLS | 20 | 24 | |
| T | TRADEMARK | 1902 | 2282 | |
| 874816 | TRADEMARK AGENTS & CONSULTANTS | 184 | 221 | |
| 533102 | TRADING POSTS | 251 | 301 | |
| W | TRADING STAMP COMPANIES | 41 | 49 | |
| 874817 | TRAFFIC & PARKING CONSULTANTS | 208 | 250 | |
| 738114 | TRAFFIC CONTROL SERVICES | 44 | 53 | |
| 874888 | TRAFFIC REPORTS | 5 | 6 | |
| 366905 | TRAFFIC SIGNS SIGNALS & EQUIP-MFRS | 18 | 22 | |
| 506355 | TRAFFIC SIGNS SIGNALS & EQUIP-WHOL | 701 | 841 | |
| 871314 | TRAFFIC SURVEYS | 1 | 1 | |
| 829973 | TRAFFIC VIOLATORS' SERVICE | 3 | 4 | |
| 553122 | TRAILER HITCHES | 5259 | 6311 | |
| 379905 | TRAILER HITCHES-MANUFACTURERS | 32 | 38 | |
| 501355 | TRAILER HITCHES-WHOLESALE | 4 | 5 | |
| 751903 | TRAILER RENTING & LEASING | 13370 | 16044 | |
| 379201 | TRAILER-MANUFACTURERS & DESIGNERS | 460 | 552 | |
| F | TRAILERS COMMERCIAL DEALERS | 46 | 55 | |
| B | TRAILERS TRUCK REPAIRING & SERVICE | 145 | 174 | |
| 559917 | TRAILER-SALES | 35 | 42 | |
| 559903 | TRAILERS-AUTOMOBILE UTILITY SPORTS ETC | 1598 | 1918 | |
| 379906 | TRAILERS-AUTOMOBILE UTILITY-MFRS | 118 | 142 | |
| 501215 | TRAILERS-AUTOMOBILE UTILITY-WHOLESALE | 339 | 407 | |
| 556102 | TRAILERS-BOAT | 540 | 648 | |
| 379907 | TRAILERS-BOAT-MANUFACTURERS | 59 | 71 | |
| 751906 | TRAILERS-BOAT-RENTING | 11 | 13 | |
| 501217 | TRAILERS-BOAT-WHOLESALE | 31 | 37 | |
| 556105 | TRAILERS-CAMPING & TRAVEL | 1225 | 1470 | |
| 379202 | TRAILERS-CAMPING & TRAVEL-MANUFACTURERS | 439 | 527 | |
| 751907 | TRAILERS-CAMPING & TRAVEL-RENTING | 3 | 4 | |
| 753824 | TRAILERS-CAMPING & TRAVEL-REPAIRING | 17 | 20 | |
| 422605 | TRAILERS-CAMPING & TRAVEL-STORAGE | 195 | 234 | |
| 501219 | TRAILERS-CAMPING & TRAVEL-WHOLESALE | 16 | 19 | |
| 508340 | TRAILERS-CARGO IMPLEMENT LIVESTOCK | 1 | 1 | |
| 501371 | TRAILERS-COMMERCIAL-EQUIP/PARTS (WHOL) | 8 | 10 | |
| 556104 | TRAILERS-EQUIPMENT & PARTS | 2407 | 2888 | |
| 379908 | TRAILERS-EQUIPMENT & PARTS-MANUFACTURERS | 55 | 66 | |
| 501356 | TRAILERS-EQUIPMENT & PARTS-WHOLESALE | 34 | 41 | |
| 508306 | TRAILERS-HORSE (WHOLESALE) | 810 | 972 | |
| 379912 | TRAILERS-HORSE-MANUFACTURERS | 16 | 19 | |
| 751908 | TRAILERS-HORSE-RENTING | 3 | 4 | |
| 501218 | TRAILERS-INDUSTRIAL-WHOLESALE | 1 | 1 | |
| 508308 | TRAILERS-LIVESTOCK (WHOLESALE) | 379 | 455 | |
| 379913 | TRAILERS-MOTORCYCLES (MANUFACTURERS) | 19 | 23 | |
| 503918 | TRAILERS-OFFICE (WHOLESALE) | 97 | 116 | |
| 751909 | TRAILERS-OFFICE-RENTING | 6 | 7 | |
| 753813 | TRAILERS-REPAIRING & SERVICE | 3199 | 3839 | |
| 559918 | TRAILERS-SNOWMOBILE | 3 | 4 | |
| 422606 | TRAILER-STORAGE | 1006 | 1207 | |
| 421301 | TRAILERS-TRANSPORTING | 286 | 343 | |
| 501212 | TRAILERS-TRUCK (WHOLESALE) | 1533 | 1840 | |
| 371502 | TRAILERS-TRUCK-MANUFACTURERS | 86 | 103 | |
| 751910 | TRAILERS-TRUCK-RENTING & LEASING | 54 | 65 | |
| 501224 | TRAILERS-TRUCK-USED (WHOLESALE) | 7 | 8 | |
| 874802 | TRAINING CONSULTANTS | 3156 | 3787 | |
| 504435 | TRAINING DEVICES (WHOLESALE) | 9 | 11 | |
| 829931 | TRAINING PROGRAMS & SERVICES | 2053 | 2464 | |
| 401102 | TRAINS | 24 | 29 | |
| 472404 | TRAINS-TICKET AGENCIES | 18 | 22 | |
| 594108 | TRAMPOLINE EQUIPMENT & SUPPLIES | 300 | 360 | |
| 394909 | TRAMPOLINE EQUIPMENT & SUPPLIES-MFRS | 5 | 6 | |
| R | TRANE/GENERAL ELECTRIC | 1890 | 2268 | |
| R | TRANE/GENERAL ELECTRIC | 1167 | 1400 | |
| R | TRANE/GENERAL ELECTRIC | 4678 | 5614 | |
| R | TRANE/GENERAL ELECTRIC | 610 | 732 | |
| R | TRANE/GENERAL ELECTRIC | 149 | 179 | |
| 804949 | TRANSACTIONAL ANALYSIS | 2 | 2 | |
| 2 | TRANSAMERICA | 3 | 4 | |
| 2 | TRANSAMERICA | 25 | 30 | |
| 2 | TRANSAMERICA | 2 | 2 | |
| 2 | TRANSAMERICA | 453 | 544 | |
| 733810 | TRANSCRIBERS-COURT | 57 | 68 | |
| 738917 | TRANSCRIBING SERVICE-TAPE DISC ETC | 1119 | 1343 | |
| 367908 | TRANSDUCERS (MANUFACTURERS) | 26 | 31 | |
| 553141 | TRANSFER CASES | 1 | 1 | |
| 275210 | TRANSFERS-DRY (MANUFACTURERS) | 16 | 19 | |
| 361206 | TRANSFORMERS-MANUFACTURERS | 70 | 84 | |
| 573126 | TRANSFORMERS-RETAIL | 31 | 37 | |
| 506311 | TRANSFORMERS-WHOLESALE | 657 | 788 | |
| 411102 | TRANSIT LINES | 402 | 482 | |
| 738920 | TRANSLATORS & INTERPRETERS | 3148 | 3778 | |
| 506547 | TRANSLATORS' SYSTEMS & EQUIPMENT (WHOL) | 75 | 90 | |
| 753701 | TRANSMISSIONS-AUTOMOBILE | 16870 | 20244 | |
| 371414 | TRANSMISSIONS-AUTOMOBILE-MANUFACTURERS | 67 | 80 | |
| 753702 | TRANSMISSIONS-AUTOMOBILE-PARTS | 360 | 432 | |
| 501357 | TRANSMISSIONS-AUTOMOBILE-WHOLESALE | 59 | 71 | |
| 555116 | TRANSMISSIONS-MARINE | 42 | 50 | |
| 371413 | TRANSMISSIONS-PARTS & SUPPLIES-MFRS | 36 | 43 | |
| 753703 | TRANSMISSIONS-TRUCK TRACTOR ETC | 1542 | 1850 | |
| 478977 | TRANSPORTATION | 2421 | 2905 | |
| 962107 | TRANSPORTATION AUTHORITIES | 158 | ||
| 45 | TRANSPORTATION BY AIR | 15987 | 19184 | |
| 473101 | TRANSPORTATION CONSULTANTS | 2251 | 2701 | |
| 508898 | TRANSPORTATION EQUIPMENT & SUPLS (WHOL) | 162 | 194 | |
| 5088 | TRANSPORTATION EQUIPMENT & SUPPLIES | 7267 | 8720 | |
| 37 | TRANSPORTATION EQUIPMENT MFRS | 22068 | 26482 | |
| 3799 | TRANSPORTATION EQUIPMENT NEC | 895 | 1074 | |
| 379998 | TRANSPORTATION EQUIPMENT NEC (MFRS) | 510 | 612 | |
| 478909 | TRANSPORTATION EQUIPMENT-LEASING | 2 | 2 | |
| 473112 | TRANSPORTATION LINES | 735 | 882 | |
| 411914 | TRANSPORTATION SERVICES | 233 | 280 | |
| 47 | TRANSPORTATION SERVICES | 74469 | 89363 | |
| 4789 | TRANSPORTATION SERVICES NEC | 3651 | 4381 | |
| 478999 | TRANSPORTATION SERVICES NEC | 61 | 73 | |
| 411913 | TRANSPORTATION SHARING SERVICE | 14 | 17 | |
| 799975 | TRAP & SKEET RANGES | 293 | 352 | |
| 509159 | TRAP & SKEET RANGES EQUIP & SUPL (WHOL) | 6 | 7 | |
| 594107 | TRAPPING EQUIPMENT & SUPPLIES | 78 | 94 | |
| 349608 | TRAPPING EQUIPMENT & SUPPLIES-MFRS | 6 | 7 | |
| 594804 | TRAVEL ACCESSORIES | 180 | 216 | |
| 4724 | TRAVEL AGENCIES | 46992 | 56390 | |
| 472402 | TRAVEL AGENCIES & BUREAUS | 43606 | 52327 | |
| 799974 | TRAVEL CLUBS | 173 | 208 | |
| 472403 | TRAVEL CONSULTANTS | 106 | 127 | |
| 472509 | TRAVEL ESCORTS | 44 | 53 | |
| 874210 | TRAVEL MARKETING | 119 | 143 | |
| 873214 | TRAVEL RESEARCH | 3 | 4 | |
| 3792 | TRAVEL TRAILERS & CAMPERS | 973 | 1168 | |
| Z | TRAVELERS | 9 | 11 | |
| Z | TRAVELERS | 4 | 5 | |
| Z | TRAVELERS | 3 | 4 | |
| Z | TRAVELERS | 9 | 11 | |
| Z | TRAVELERS | 15 | 18 | |
| Z | TRAVELERS | 1605 | 1926 | |
| 832270 | TRAVELERS' ADVISORY SERVICE | 25 | 30 | |
| 609907 | TRAVELERS' CHECKS-ISSUED | 132 | 158 | |
| 832269 | TRAVELERS' HLTH COUNSELING/VACCINATIONS | 6 | 7 | |
| P | TRAVELODGE | 371 | 445 | |
| 229804 | TRAWLS (MANUFACTURERS) | 2 | 2 | |
| 244106 | TRAYS (MANUFACTURERS) | 2 | 2 | |
| 0173 | TREE NUTS | 41 | 49 | |
| 017398 | TREE NUTS | 15 | 18 | |
| 081102 | TREE PLANTING KITS | 1 | 1 | |
| 078301 | TREE SERVICE | 16782 | 20138 | |
| 352402 | TREE SERVICE EQUIPMENT & SUPPLIES (MFRS) | 279 | 335 | |
| 526133 | TREES | 426 | 511 | |
| 243111 | TRELLISES (MANUFACTURERS) | 7 | 8 | |
| 508236 | TRENCH BOXES (WHOLESALE) | 4 | 5 | |
| 162909 | TRENCHING & UNDERGROUND CONTRACTORS | 1781 | 2137 | |
| 735924 | TRENCHING MACHINES-RENTING | 124 | 149 | |
| 594714 | TRICKS & JOKES | 30 | 36 | |
| 352408 | TRIMMERS-INDUSTRIAL (MANUFACTURERS) | 3 | 4 | |
| 352410 | TRIMMERS-STRING (MANUFACTURERS) | 1 | 1 | |
| 513136 | TRIMMINGS-WHOLESALE | 16 | 19 | |
| 5 | TRIUMPH | 132 | 158 | |
| A | TRIUMPH ADLER | 161 | 193 | |
| 411915 | TROLLEYS-CHARTER | 2 | 2 | |
| 599909 | TROPHIES AWARDS & MEDALS | 7458 | 8950 | |
| 349906 | TROPHIES-MANUFACTURERS | 170 | 204 | |
| 509421 | TROPHIES-WHOLESALE | 58 | 70 | |
| 571234 | TROPHY CABINETS | 12 | 14 | |
| 347924 | TROPHY ENGRAVERS | 13 | 16 | |
| 509432 | TROPHY PARTS & SUPPLIES-WHOLESALE | 2 | 2 | |
| 599910 | TROPICAL FISH-RETAIL | 2792 | 3350 | |
| 519939 | TROPICAL FISH-WHOLESALE | 137 | 164 | |
| 078303 | TROPICAL FOLIAGE SERVICE | 44 | 53 | |
| 599205 | TROPICAL PLANTS | 6 | 7 | |
| 3713 | TRUCK & BUS BODIES | 1171 | 1405 | |
| 371398 | TRUCK & BUS BODIES (MANUFACTURERS) | 772 | 926 | |
| 501373 | TRUCK ACCESSORIES (WHOLESALE) | 784 | 941 | |
| 553127 | TRUCK AIR CONDITIONING EQUIPMENT | 80 | 96 | |
| 753939 | TRUCK AIR CONDITIONING EQUIP-REPAIRING | 12 | 14 | |
| 501213 | TRUCK BODIES & EQUIPMENT (WHOLESALE) | 1441 | 1729 | |
| 371303 | TRUCK BODIES-MANUFACTURERS | 364 | 437 | |
| 753212 | TRUCK BODIES-REPAIRING | 138 | 166 | |
| 501374 | TRUCK BUMPERS & TAILGATES (WHOLESALE) | 5 | 6 | |
| 556106 | TRUCK CANOPIES, CAPS & SHELLS | 4493 | 5392 | |
| 379203 | TRUCK CAPS & SHELLS-MANUFACTURERS | 31 | 37 | |
| 501358 | TRUCK CAPS & SHELLS-WHOLESALE | 20 | 24 | |
| 753221 | TRUCK CHASSIS ALTERATIONS & EQUIPMENT | 8 | 10 | |
| 736302 | TRUCK DRIVER-LEASING | 265 | 318 | |
| 824907 | TRUCK DRIVING INSTRUCTION | 100 | 120 | |
| 371410 | TRUCK EQUIPMENT & PARTS-MANUFACTURERS | 1157 | 1388 | |
| 501505 | TRUCK EQUIPMENT & PARTS-USED & REBUILT | 700 | 840 | |
| 501302 | TRUCK EQUIPMENT & PARTS-WHOLESALE | 7392 | 8870 | |
| 753818 | TRUCK LUBRICATING SERVICE | 37 | 44 | |
| 501304 | TRUCK REFRIGERATION EQUIPMENT (WHOL) | 534 | 641 | |
| 762308 | TRUCK REFRIGERATION EQUIPMENT-REPAIRING | 11 | 13 | |
| 7513 | TRUCK RENTAL & LEASING NO DRIVERS | 26480 | 31776 | |
| 751303 | TRUCK RENTING & LEASING | 24635 | 29562 | |
| 478508 | TRUCK SCALES | 6 | 7 | |
| 371304 | TRUCK SLEEPERS-MANUFACTURERS | 4 | 5 | |
| 554103 | TRUCK STOPS & PLAZAS | 2987 | 3584 | |
| 423101 | TRUCK TERMINALS | 221 | 265 | |
| 478503 | TRUCK TESTING STATIONS | 100 | 120 | |
| 422615 | TRUCK TRAILER-PARKING & STORAGE | 4 | 5 | |
| 3715 | TRUCK TRAILERS | 580 | 696 | |
| 369912 | TRUCK WASHING/CLEANING EQUIP/SUPLS-MFRS | 3 | 4 | |
| 551105 | TRUCK-DEALERS | 14204 | 17045 | |
| 552101 | TRUCK-DEALERS-USED | 4888 | 5866 | |
| 501214 | TRUCK-DISTRIBUTORS | 78 | 94 | |
| 421304 | TRUCKING | 15271 | 18325 | |
| 473125 | TRUCKING CONSULTANTS | 17 | 20 | |
| 4213 | TRUCKING EXCEPT LOCAL | 47115 | 56538 | |
| 421321 | TRUCKING MANAGEMENT | 4 | 5 | |
| 421318 | TRUCKING-CONTAINERIZED FREIGHT | 44 | 53 | |
| 421201 | TRUCKING-CONTRACT HAULING | 3418 | 4102 | |
| 421210 | TRUCKING-DUMP | 4870 | 5844 | |
| 421305 | TRUCKING-EXEMPT COMMODITY | 75 | 90 | |
| 421307 | TRUCKING-HEAVY HAULING | 8453 | 10144 | |
| 421306 | TRUCKING-LIQUID & DRY BULK | 2494 | 2993 | |
| 421212 | TRUCKING-LOCAL CARTAGE | 2826 | 3391 | |
| 421309 | TRUCKING-MOTOR FREIGHT | 16587 | 19904 | |
| 421320 | TRUCKING-OVERDIMENSIONAL LOAD | 6 | 7 | |
| 421308 | TRUCKING-REFRIGERATED | 348 | 418 | |
| 421211 | TRUCKING-SAND & GRAVEL | 10 | 12 | |
| 421303 | TRUCKING-TRANSPORTATION BROKERS | 2629 | 3155 | |
| 421209 | TRUCK-LOADING & UNLOADING | 17 | 20 | |
| 371109 | TRUCK-MANUFACTURERS | 109 | 131 | |
| 753206 | TRUCK-PAINTING & LETTERING | 5390 | 6468 | |
| 473116 | TRUCK-PERMIT SERVICE | 217 | 260 | |
| 753812 | TRUCK-REPAIRING & SERVICE | 18712 | 22454 | |
| 764116 | TRUCK-SEAT REPAIRING | 2 | 2 | |
| 508457 | TRUCKS-INDUSTRIAL (WHOLESALE) | 4152 | 4982 | |
| 769909 | TRUCKS-INDUSTRIAL-REPAIRING | 243 | 292 | |
| 371598 | TRUCK-TRAILER (MANUFACTURERS) | 495 | 594 | |
| 473124 | TRUCK-TRANSPORT PREPARATION | 3 | 4 | |
| 421214 | TRUCK-TRANSPORTING | 160 | 192 | |
| 754206 | TRUCK-WASHING & CLEANING | 1593 | 1912 | |
| 508749 | TRUCK-WASHING/CLEANING EQPT/SUPLS (WHOL) | 247 | 296 | |
| 501504 | TRUCK-WRECKING (WHOLESALE) | 138 | 166 | |
| 2 | TRUE VALUE | 4117 | 4940 | |
| 594806 | TRUNKS-DEALERS | 19 | 23 | |
| 316103 | TRUNKS-MANUFACTURERS | 5 | 6 | |
| 243901 | TRUSSES (MANUFACTURERS) | 337 | 404 | |
| 521124 | TRUSSES-CONSTRUCTION | 1245 | 1494 | |
| 243904 | TRUSSES-CONSTRUCTION-MANUFACTURERS | 35 | 42 | |
| 504709 | TRUSSES-MEDICAL & SURGICAL (WHOLESALE) | 99 | 119 | |
| 602102 | TRUST COMPANIES | 1316 | 1579 | |
| 673301 | TRUST SERVICE | 432 | 518 | |
| 673303 | TRUSTEES | 97 | 116 | |
| 6733 | TRUSTS EXCEPT EDUCATIONAL & RELIGIOUS | 748 | 898 | |
| 225301 | T-SHIRTS-MANUFACTURERS | 157 | 188 | |
| 569917 | T-SHIRTS-RETAIL | 12911 | 15493 | |
| 513611 | T-SHIRTS-WHOLESALE | 751 | 901 | |
| 354105 | TUBE CLEANING & EXPANDING EQUIP (MFRS) | 37 | 44 | |
| 354705 | TUBE CUTTING | 14 | 17 | |
| 505108 | TUBE FITTINGS (WHOLESALE) | 453 | 544 | |
| 349801 | TUBE-BENDING & FABRICATING | 485 | 582 | |
| 331202 | TUBING (MANUFACTURERS) | 301 | 361 | |
| 349807 | TUBING-COILS (MANUFACTURERS) | 2 | 2 | |
| 505110 | TUBING-METAL (WHOLESALE) | 545 | 654 | |
| 331206 | TUBING-METAL-FABRICATORS | 53 | 64 | |
| 331208 | TUBING-METAL-MACHINERY (MANUFACTURERS) | 2 | 2 | |
| 174115 | TUCK POINTING EQUIPMENT & SUPPLIES | 5 | 6 | |
| H | TUESDAY MORNING | 245 | 294 | |
| 764111 | TUFTING | 46 | 55 | |
| 355209 | TUFTING MACHINERY (MANUFACTURERS) | 18 | 22 | |
| 508830 | TUGBOAT & BARGE BROKERS | 10 | 12 | |
| 335608 | TUNGSTEN (MANUFACTURERS) | 18 | 22 | |
| 162202 | TUNNELLING CONTRACTORS | 76 | 91 | |
| 351107 | TURBINE SEAL | 3 | 4 | |
| 351101 | TURBINES-MANUFACTURERS | 486 | 583 | |
| 506382 | TURBINES-WHOLESALE | 4 | 5 | |
| 501306 | TURBOCHARGERS (WHOLESALE) | 354 | 425 | |
| 018103 | TURF | 1 | 1 | |
| 025301 | TURKEY FARMS | 41 | 49 | |
| 0253 | TURKEYS & TURKEY EGGS | 41 | 49 | |
| 342921 | TURNBUCKLES (MANUFACTURERS) | 6 | 7 | |
| 382916 | TURNSTILES (MANUFACTURERS) | 21 | 25 | |
| 506559 | TURNTABLES (WHOLESALE) | 8 | 10 | |
| 286103 | TURPENTINE (MANUFACTURERS) | 3 | 4 | |
| 509425 | TURQUOISE (WHOLESALE) | 28 | 34 | |
| 829909 | TUTORING | 4455 | 5346 | |
| 561112 | TUXEDOS | 1043 | 1252 | |
| 792224 | TV PROGRAM CONTESTANT & TICKET INFO | 2 | 2 | |
| 483302 | TV STATIONS & BROADCASTING CO CNSLNTS | 10 | 12 | |
| 508514 | TWINES & CORDAGE (WHOLESALE) | 92 | 110 | |
| 229803 | TWINES & CORDAGE-MANUFACTURERS | 8 | 10 | |
| 573130 | TWO-WAY RADIO-EQUIPMENT & SUPPLIES | 4 | 5 | |
| 356903 | TYING MACHINES (MANUFACTURERS) | 31 | 37 | |
| 355509 | TYPE METALS (MANUFACTURERS) | 6 | 7 | |
| 355511 | TYPE-FOUNDERS (MANUFACTURERS) | 8 | 10 | |
| 306929 | TYPE-RUBBER (MANUFACTURERS) | 4 | 5 | |
| 2791 | TYPESETTING | 9984 | 11981 | |
| 279102 | TYPESETTING (MANUFACTURERS) | 9694 | 11633 | |
| 508496 | TYPESETTING EQUIPMENT (WHOLESALE) | 60 | 72 | |
| 599908 | TYPEWRITERS | 4137 | 4964 | |
| 357910 | TYPEWRITERS-MANUFACTURERS | 5 | 6 | |
| 769940 | TYPEWRITERS-REPAIRING | 813 | 976 | |
| 599907 | TYPEWRITERS-SUPPLIES & ATTACHMENTS | 263 | 316 | |
| 395502 | TYPEWRITERS-SUPPLIES & ATTACHMENTS-MFRS | 13 | 16 |