| 1 | DW | Joint Stock Company "Air Company Aero-Charter" | ICAO: UCR, Callsign: Charter Ukraine, IATA Prefix: 187, Founded in 1997. Ceased operations. Name changed from Aero-Charter Ukraine Ltd. | UA | AVCODES |
| 2 | DW | DLT Luftverkehrsgesellschaft mbH | ICAO: DLT, Callsign: DLT, | D | AVCODES |
| 3 | DW | Rottnest Airlines | | AUS | AVCODES |
| 4 | DW | flycana | ICAO: DWI, Callsign: Dominican, Commenced operations during May 2015. | DOM | AVCODES |
| 5 | DW | Great Dane Airlines A/S | ICAO: GDE, Callsign: Great Dane, Declared Bankrupt on 11 October 2021. | DK | AVCODES |
| 6 | DW | Detroit & Western | 1/1975-1/1980 | | NAKINA |
| 7 | DW | Detroit & Western | 1/75-1/80 | | NRHS |
| 8 | DW | *DANVILLE & WESTERN RAILWAY CO. | | | PWRC |
| 9 | DW | *DETROIT & WESTERN RWY. | | | PWRC |
| 10 | DW | Detroit and Western | | | RSRV |
| 11 | DW&P | Duluth, Winnipeg & Pacific Ry. | 8/1920-7/1936 | | NAKINA |
| 12 | DW&P | Duluth, Winnipeg & Pacific Ry. | 23-Jul | | NRHS |
| 13 | DW&P | CANADIAN NATIONAL [DULUTH, WINNIPEG & PACIFIC RY.] | | | PWRC |
| 14 | DWA | Ducor World Airlines | Callsign: Ducor World, | GQ | AVCODES |
| 15 | DWAD | DEWALD TRUCKING | | | SCAC4 |
| 16 | DWAL | DHALIWAL, H S TRANSPORT INC | | | SCAC4 |
| 17 | DWAM | DAVES MAINE WREATHS & TREES INC | | | SCAC4 |
| 18 | DWAN | DESERT WIND TRANSPORT | | | SCAC4 |
| 19 | DWAP | DWA TRANSPORT LLC | | | SCAC4 |
| 20 | DWAT | DWA TRUCKING | | | SCAC4 |
| 21 | DWAU | EVONIK DEGUSSA ANTWERPEN N.V | | B | BIC |
| 22 | DWAU | DEGUSSA ANTWERPEN NV | | | PWRC |
| 23 | DWAU | Degussa Antwerpen | | | RSRV |
| 24 | DWAU | DEGUSSA ANTWERPEN N V | | | SCAC4 |
| 25 | DWBT | DEWITT BROS INC | | | SCAC4 |
| 26 | DWBU | WARSTEINER BRAUEREI | | D | BIC |
| 27 | DWBU | WARSTEINER BRAUEREI | | | SCAC4 |
| 28 | DWC | Canadian National Rys. | added 1/1993; 1/1994-7/2005 | | NAKINA |
| 29 | DWC | Duluth, Winnipeg & Pacific Ry. | 1/1975-1/1980; eliminated 1/1993 | | NAKINA |
| 30 | DWC | Duluth, Winnipeg & Pacific Ry. | 1/75-1/80; eliminated 1/93 | | NRHS |
| 31 | DWC | Canadian National Rys. | added 1/93; 1/94-7/2000 | | NRHS |
| 32 | DWC | CANADIAN NATIONAL [DULUTH, WINNIPEG & PACIFIC RY.] | | | PWRC |
| 33 | DWC | Duluth, Winnipeg and Pacific Railway (Canadian National Railway) | | | RSRV |
| 34 | DWCA | DULLES WORLD CARGO | | | SCAC4 |
| 35 | DWCC | DAWES CONTRACT CARRIAGE | | | SCAC4 |
| 36 | DWCD | DEWITT COMPANIES LTD LLC | | | SCAC4 |
| 37 | DWCI | DUGGAN, W M CO INC | | | SCAC4 |
| 38 | DWCL | DWIGHT CRANE LTD | | | SCAC4 |
| 39 | DWCM | DURKIN WATER COMPANY L P | | | SCAC4 |
| 40 | DWCN | D & W CONSTRUCTIONS CONTRACTORS | | | SCAC4 |
| 41 | DWCO | DOWNING WORLDWIDE | | | SCAC4 |
| 42 | DWCP | DEEM FARMS | | | SCAC4 |
| 43 | DWCR | DIAMOND STATE WAREHOUSING | | | SCAC4 |
| 44 | DWCT | DAWSON LOGISTICS INC | | | SCAC4 |
| 45 | DWCU | DONGWOO FINE-CHEM CO LTD | | | SCAC4 |
| 46 | DWCX | David Witherspoon, Inc. | added 1/1964; 7/1965-1/1980; eliminated 10/1993; 1/1994-7/2005 | | NAKINA |
| 47 | DWCX | David Witherspoon, Inc. | 7/65-1/80; eliminated 10/93; 1/94-7/2000 | | NRHS |
| 48 | DWCX | DAVID WITHERSPOON, INC. | | | PWRC |
| 49 | DWCX | David Witherspoon | | | RSRV |
| 50 | DWCX | WITHERSPOON INC DAVID | | | SCAC3 |
| 51 | DWCY | DOVER WOODS CABINETRY | | | SCAC4 |
| 52 | DWDB | D W DISTRIBUTORS | | | SCAC4 |
| 53 | DWDG | D W DESIGN INC | | | SCAC4 |
| 54 | DWDI | DENT WIZARD INTERNATIONAL | | | SCAC4 |
| 55 | DWDP | DAWOOD TRANSPORT | | | SCAC4 |
| 56 | DWDR | DOWDY, RONNIE INC | | | SCAC4 |
| 57 | DWDS | DRIEST WOOD SHAVINGS INC | | | SCAC4 |
| 58 | DWDW | DAWSON, DOW TRUCKING INC | | | SCAC4 |
| 59 | DWE | Verein zur Föderung der Dessau-Wörlitzer Museumsbahn e.V. | Dessau | D | privat-bahn.de |
| 60 | DWEC | DITCH WITCH EQUIPMENT CO INC | | | SCAC4 |
| 61 | DWEI | DOUBLE WING ENTERPRISES INC | | | SCAC4 |
| 62 | DWEL | DORMAN, WALTER EXCAVATING & SON LLC | | | SCAC4 |
| 63 | DWER | DELAWARE EXPRESS TOURS INC | | | SCAC4 |
| 64 | DWET | D W E TRUCKING | | | SCAC4 |
| 65 | DWFA | DWYER FAMILY FUEL | | | SCAC4 |
| 66 | DWFP | DNIPRO WHOLESALE FOODS CORP | | | SCAC4 |
| 67 | DWFU | DONGWOO FINE CHEM CO, LTD | | ROK | BIC |
| 68 | DWFU | DONGWOO FINE-CHEM CO LTD | | | SCAC4 |
| 69 | DWFW | D & W FORWARDERS INC | | | SCAC4 |
| 70 | DWG | Valkyrie Leasing, LLC | Callsign: Dark Wing, Name changed to Valkyrie Aero, LLC. | USA | AVCODES |
| 71 | DWG | Valkyrie Aero, LLC | Callsign: Dark Wing, Name changed from Valkyrie Leasing, LLC. | USA | AVCODES |
| 72 | DWGI | DEWITT MOVING AND STORAGE GUAM | | | SCAC4 |
| 73 | DWGR | DUQUETTES STEEL & STRUCTURAL FABRIC | | | SCAC4 |
| 74 | DWGT | DAIGLE WELDING & MARINE LTD | | | SCAC4 |
| 75 | DWHA | DW HAULING LLC | | | SCAC4 |
| 76 | DWHC | DRIGGERS WAREHOUSE INC | | | SCAC4 |
| 77 | DWHD | DEPENDABLE WAREHOUSE & DISTRIBUTION | | | SCAC4 |
| 78 | DWHL | DEESE WHOLESALE BAIT | | | SCAC4 |
| 79 | DWHN | DOWNHAM NURSERIES (1993) INC | | | SCAC4 |
| 80 | DWI | DW Dominican Wings, S.A. | Callsign: Dominican, Rebranded as flycana on 15 May 2018. | DOM | AVCODES |
| 81 | DWI | flycana | IATA: DW, Callsign: Dominican, Commenced operations during May 2015. | DOM | AVCODES |
| 82 | DWI | DW Dominican Wings. S.A. d/b/a Arajet | IATA: DM, | DOM | AVCODES |
| 83 | DWIA | D & W INTERNATIONAL INC | | | SCAC4 |
| 84 | DWIC | DODSWORTH, INCORPORATED | | | SCAC1 |
| 85 | DWIC | DFC WOODWORKS INC | | | SCAC4 |
| 86 | DWIG | DEPENDABLE WAREHOUSING INC | | | SCAC4 |
| 87 | DWIM | DWI-MAR TRANSPORTATION SERVICES INC | | | SCAC4 |
| 88 | DWIN | DW AIR INC | | | SCAC4 |
| 89 | DWIT | DEWITT, J E INC | | | SCAC4 |
| 90 | DWIW | DALEY & WANZER INC | | | SCAC4 |
| 91 | DWJA | DONOVAN, W J INC | | | SCAC4 |
| 92 | DWJR | DOWNEY, JEREMIAH R OIL CORP | | | SCAC4 |
| 93 | DWJT | DEANS, W J TRANSPORTATION INC | | | SCAC4 |
| 94 | DWK | DWK GmbH | | DE | VKM |
| 95 | DWKT | DWK TRANSPORT LLC | | | SCAC4 |
| 96 | DWKW | DWORAK, WALTER TRUCKING COMPANY INC | | | SCAC4 |
| 97 | DWLA | DOWA LINE AMERICA CO LTD | | | SCAC4 |
| 98 | DWLC | DELL WILL CUSTOMS BROKERS USA INC | | | SCAC4 |
| 99 | DWLG | DAEWOO LOGISTICS CORP | | | SCAC4 |
| 100 | DWLI | D W LIFT SALES INC | | | SCAC4 |
