| 1 | TW | Trans World Airlines, Inc. | ICAO: TWA, Callsign: TWA, IATA Prefix: 015, Merged into American Airlines w.e.f. 02 December 2001. | USA | AVCODES |
| 2 | TW | T'Way Air Co. Ltd. | ICAO: TWB, Callsign: Teeway, | ROK | AVCODES |
| 3 | TWA | Trans World Airlines, Inc. | IATA: TW, Callsign: TWA, IATA Prefix: 015, Merged into American Airlines w.e.f. 02 December 2001. | USA | AVCODES |
| 4 | TWA | Trans World Airlines | IATA: TW | | ICAO1 |
| 5 | TWA | Trans World Airlines | | USA | TRAFFIC |
| 6 | TWA | Transwaggon AG, Zug | | CH | VKM |
| 7 | TWAA | TWO RIVERS TRANSPORTATION LLC | | | SCAC4 |
| 8 | TWAF | TWX CORPORATION | | | SCAC4 |
| 9 | TWAF | Taiwanese Air Force | Real: ROCAF, Republic of China Air Force (中華民國空軍) | RC | TRAFFIC |
| 10 | TWAG | Transwaggon | | S | TRAFFIC |
| 11 | TWAH | TIPPETT, WAYNE | | | SCAC4 |
| 12 | TWAJ | TRADE WINDS TRANSIT INC | | | SCAC4 |
| 13 | TWAK | TWIN TOOLING INC | | | SCAC4 |
| 14 | TWAL | TRANS WORLD SOLUTIONS | | | SCAC4 |
| 15 | TWAM | TWIN ANCHORS MARINE (1977) LTD | | | SCAC4 |
| 16 | TWAQ | THREE WAY LOGISTICS INC | | | SCAC4 |
| 17 | TWAR | Tramwaje Warszawskie Sp. z o. o. | | PL | TRAFFIC |
| 18 | TWAT | TRENDWAY TRANSPORTATION SERVICES IN | | | SCAC4 |
| 19 | TWAU | TAYLOR-WHARTON AMERICA INC | | USA | BIC |
| 20 | TWAW | TINOS HAULING & TOWING INC | | | SCAC4 |
| 21 | TWAY | TRANSWAY TRANSPORT | | | SCAC4 |
| 22 | TWAY | Trailways | Trailways is a membership-based marketing organization comprised of privately owned and operated transportation companies | USA | TRAFFIC |
| 23 | TWB | T'Way Air Co. Ltd. | IATA: TW, Callsign: Teeway, | ROK | AVCODES |
| 24 | TWB | T'Way Airlines | | ROK | TRAFFIC |
| 25 | TWBA | TWS INC | | | SCAC4 |
| 26 | TWBB | TWO B (2B) BROKERAGE LLC | | | SCAC4 |
| 27 | TWBC | TEAM WARREN LLC | | | SCAC4 |
| 28 | TWBD | TWB DESIGNS INC | | | SCAC4 |
| 29 | TWBF | TWINBROOK FARMS | | | SCAC4 |
| 30 | TWBK | TRADEWINDS BROKERAGE INC | | | SCAC4 |
| 31 | TWBL | TWA EXPRESS LLC | | | SCAC4 |
| 32 | TWBN | THOMAS, W & B TRUCKING | | | SCAC4 |
| 33 | TWBP | TWO (2) BLESSED TRANSPORTATION | | | SCAC4 |
| 34 | TWBS | TWISS LOGISTICS INC | | | SCAC4 |
| 35 | TWBS | Transwagon Burgas | | BG | VKM |
| 36 | TWBT | TWO (2) B TRUCKING LLC | | | SCAC4 |
| 37 | TWBY | TRUCK WORLD LOGISTICS INC | | | SCAC4 |
| 38 | TWC | Taraz Wings | Callsign: Taraz, | KZ | AVCODES |
| 39 | TWC | Canadian Airways Congo | Callsign: Canair, | RCB | AVCODES |
| 40 | TWCC | TREMONT FINE STAIRWAYS AND RAILINGS | | | SCAC4 |
| 41 | TWCF | TWIN CITY FOODS INC | | | SCAC4 |
| 42 | TWCH | TOWN & COUNTRY DISPOSAL | | | SCAC4 |
| 43 | TWCI | TRADEWIND CARRIERS INC | | | SCAC4 |
| 44 | TWCJ | TRADE WEST CONSTRUCTION INC | | | SCAC4 |
| 45 | TWCK | TWIN CITY TRUCKING & SEPTIC TANK SE | | | SCAC4 |
| 46 | TWCL | TOWN & COUNTRY OIL CO | | | SCAC4 |
| 47 | TWCM | TAPLOW FEEDS FIRSTMATE PET FOODS | | | SCAC4 |
| 48 | TWCN | TWO FIVE TWO SEVEN-TWO EIGHT TWO FO | | | SCAC4 |
| 49 | TWCP | TWIN CITIES SERVICES INC | | | SCAC4 |
| 50 | TWCS | TWIN CITY TRANSPORT LLC | | | SCAC4 |
| 51 | TWCU | THRU-WORLD COMPANY LIMITED | | HK | BIC |
| 52 | TWCU | THRU WORLD COMPANY LIMITED | | | SCAC4 |
| 53 | TWCX | The Wash.-Co. Alfalfa Milling Co. | 8/1920 | | NAKINA |
| 54 | TWCX | Taylor Wharton Cryogenics, a Division of Harsco Corp. | 7/2005 (not listed) | | NAKINA |
| 55 | TWCX | *WASHINGTON COUNTY ALFALFA MILLING CO. | | | PWRC |
| 56 | TWCX | +TW CRYOGENICS, LLC (TAYLOR WHARTON CRYOGENICS, DIV. HARSCO CORP.) | | | PWRC |
| 57 | TWD | Wings Aviation Ltd | Callsign: Tradewings, | WAN | AVCODES |
| 58 | TWDF | TRANSPORT W D F | | | SCAC4 |
| 59 | TWDH | TEMPLETON WAREHOUSE & DISTRIBUTION | | | SCAC4 |
| 60 | TWDI | TRADEWOOD WINDOWS AND DOORS INC | | | SCAC4 |
| 61 | TWDJ | TRAILWINDS LOGISTICS LLC | | | SCAC4 |
| 62 | TWDM | TWINS ENTERPRISES INC | | | SCAC4 |
| 63 | TWDP | TRANSNOW COZ INC | | | SCAC4 |
| 64 | TWDQ | TRANS WORLD SHIPPING CORP | | | SCAC4 |
| 65 | TWDR | TREASURE WOOD INDUSTRIES INC | | | SCAC4 |
| 66 | TWDS | TRANSWORLD LINE INTERNATIONAL INC | | | SCAC4 |
| 67 | TWDU | TRAWIND SHIPPING CO LIMITED | | | SCAC4 |
| 68 | TWDV | TRANS-WORLD MOVING SYSTEMS INC | | | SCAC4 |
| 69 | TWE | Transwede Airways AB | IATA: TQ, Transwede Airways merged into Braathens. Transwede Leisure merged in Blue Scandinavia during 1998. | S | AVCODES |
| 70 | TWE | Transwede Airways AB | IATA: 5T, Callsign: Transwede, Founded in 2005. Ceased operations on 31 March 2010. Owned by Braathens Aviation. | S | AVCODES |
| 71 | TWE | Transair Sweden AB | IATA: 5T, Callsign: Trans-Swede, | S | AVCODES |
| 72 | TWE | Transwede Airways | | | ICAO1 |
| 73 | TWE | Teutoburger Wald-Eisenbahn AG | Gütersloh (Connex-Gruppe > Veolia Verkehr > Captrain) | D | privat-bahn.de |
| 74 | TWE | Teutoburger Wald-Eisenbahn | | D | TRAFFIC |
| 75 | TWE | Teutoburger Wald-Eisenbahn Gesellschaft | | DE | VKM |
| 76 | TWEA | TWEEDSIDE EVERGREENS | | | SCAC4 |
| 77 | TWEB | TW EXPRESS, D.M.R. TRANSPORTATION LTD | | | SCAC1 |
| 78 | TWEB | TRANSPORT R E S | | | SCAC4 |
| 79 | TWED | TWEED FARM EQUIPMENT LTD | | | SCAC4 |
| 80 | TWEF | TWO EIGHT FIVE SEVEN-TWO EIGHT NINE | | | SCAC4 |
| 81 | TWEH | TWEHOUS EXCAVATING COMPANY INC | | | SCAC4 |
| 82 | TWEI | TUMBLEWEED EXPRESS INC | | | SCAC4 |
| 83 | TWEK | TNS WEST | | | SCAC4 |
| 84 | TWEL | TRANS-WESTERN EXPRESS, LTD | | | SCAC1 |
| 85 | TWEL | TRANS PRO FREIGHTWAYS INC | | | SCAC4 |
| 86 | TWEN | TOWNSEND ENTERPRISES LTD | | | SCAC4 |
| 87 | TWEP | TIDWELL EXPRESS, INC | | | SCAC1 |
| 88 | TWEQ | TWO EIGHT FIVE THREE-TWO SIX SIX ON | | | SCAC4 |
| 89 | TWER | | City: Twer | UA | TRAFFIC |
| 90 | TWET | TWENTER TRUCKING LLC | | | SCAC4 |
| 91 | TWEV | TWO ONE TWO EIGHT FIVE FIVE ZERO (2 | | | SCAC4 |
| 92 | TWEW | TWEAK | | | SCAC4 |
| 93 | TWF | 247 Jet Ltd | Callsign: Cloud Runner, | GB | AVCODES |
| 94 | TWF | 247 Jet Ltd | | | ICAO1 |
| 95 | TWFB | TRANS WORLD FREIGHT SYSTEMS INC | | | SCAC4 |
| 96 | TWFG | TWO FLAGS TRANSPORTATION LTD | | | SCAC4 |
| 97 | TWFH | TWENTY FOUR (24) HOUR TRUCK SHUTTLE | | | SCAC4 |
| 98 | TWFI | TWO TWO FOUR TWO NINE SEVEN NINE (2 | | | SCAC4 |
| 99 | TWFJ | TWO FOUR/SEVEN (24/7) EXPEDITE INC | | | SCAC4 |
| 100 | TWFK | THOMAS WEST FLC | | | SCAC4 |
