| 1 | DHE | DAP Helicopteros Ltda. | Callsign: Helidap, | RCH | AVCODES |
| 2 | DHE | DAP Helicopteros | | | ICAO1 |
| 3 | DHE | Delmenhorst - Harpstedter Eisenbahn GmbH | Delmenhorst | D | privat-bahn.de |
| 4 | DHE | Delmenhorst - Harpstedter Eisenbahn GmbH | | D | TRAFFIC |
| 5 | DHE | Delmenhorst-Harpstedter Eisenbahn | | DE | VKM |
| 6 | DHEC | DELAWARE HUDSON & ERIE CARTAGE INC | | | SCAC4 |
| 7 | DHEER | Detsches Heer | The German Army was formed after the unification of Germany under Prussian leadership in 1871 and dissolved in 1919, after the defeat of the German Empire in World War I. | D | TRAFFIC |
| 8 | DHEF | Delmenhorst-Harpstedter Eisenbahnfeunde e.V. | Delmenhorst | D | privat-bahn.de |
| 9 | DHEF | Delmenhorst-Harpstedter Eisenbahnfreunde e.V | | DE | VKM |
| 10 | DHEI | D H ENTERPRISE INC | | | SCAC4 |
| 11 | DHEP | D & H ENTERPRISES | | | SCAC4 |
| 12 | DHEQ | DOG HOUSE EXPRESS | | | SCAC4 |
| 13 | DHEU | D&H Equipment | | | RSRV |
