| 1 | DOW | Downeast Flying Services, Inc. d/b/a Downeast Express | IATA: E7, Name changed to Downeast Flying Service, Inc. d/b/a Northeast Airlines. IATA designator changed to NE | USA | AVCODES |
| 2 | DOW | Downeast Flying Services, Inc. d/b/a Northeast Airlines | IATA: NE, Name changed from Downeast Flying Services, Inc. d/b/a Downeast Express. IATA designator changed from E7 | USA | AVCODES |
| 3 | DOW | Best Jets International | Callsign: Downtown, | USA | AVCODES |
| 4 | DOW | DOW Sverige AB | | SE | VKM |
| 5 | DOWA | DOLAN, WILLIAM A | | | SCAC4 |
| 6 | DOWE | DOWNEY ROBERGE PLANTATIONS INC | | | SCAC4 |
| 7 | DOWN | DOWNARD DISTRIBUTING INC | | | SCAC4 |
| 8 | DOWNTB | Downtown Bus | | USA | TRAFFIC |
| 9 | DOWT | DOWNING TRUCKING INC | | | SCAC4 |
| 10 | DOWU | DOW CHEMICAL CO. | | | PWRC |
| 11 | DOWU | Dow Chemical | | | RSRV |
| 12 | DOWU | POLISUR S A | | | SCAC4 |
| 13 | DOWX | The Dow Chemical Co. | 8/1920-7/2005 | | NAKINA |
| 14 | DOWX | The Dow Chemical Co. | 4/38-7/2000 | | NRHS |
| 15 | DOWX | DOW CHEMICAL CO. | | | PWRC |
| 16 | DOWX | Dow Chemical | | | RSRV |
| 17 | DOWX | Dow Chemicals | | USA | TRAFFIC |
