| 1 | DYN | Aero Dynamics, Inc. | Callsign: Aero Dynamic, Name changed to Aerodynamics, Inc. ICAO callsign changed to Aerodynamics | USA | AVCODES |
| 2 | DYN | Aerodynamics, Inc. | IATA: Y7, Callsign: Aerodynamics, IATA designator changed to 8N*. Name changed from Aero Dynamics, Inc. ICAO callsign from Aero Dynamic | USA | AVCODES |
| 3 | DYN | Aerodynamics, Inc. | IATA: 8N, Callsign: Aerodynamics, Designator changed to 4A. Name changed from Aero Dynamics, Inc. ICAO callsign from Aero Dynamic. IATA designator changed from Y7*. | USA | AVCODES |
| 4 | DYN | Aerodynamics, Inc. | IATA: 4A, Callsign: Aerodynamics, Designator changed from 8N*. Name changed to Aerodynamics, Inc. d/b/a Great Lakes Jet Express. Name changed from Aero Dynamics, Inc. ICAO callsign from Aero Dynamic. IATA designator changed from Y7*. | USA | AVCODES |
| 5 | DYN | Aerodynamics, Inc. d/b/a Great Lakes Jet Express | Callsign: Aerodynamics, Designator changed from 8N*. Name changed to Aerodynamics, Inc. d/b/a Great Lakes Jet Express. Name changed from Aero Dynamics, Inc. ICAO callsign from Aero Dynamic. IATA designator changed from Y7*. | USA | AVCODES |
| 6 | DYN | Aero Dynamics | | | ICAO1 |
| 7 | DYNA | DYNA BULK INC | | | SCAC4 |
| 8 | DYNB | DYNA FREIGHT INC | | | SCAC4 |
| 9 | DYND | DYNAMO DELIVERY | | | SCAC4 |
| 10 | DYNE | DYNAMEX CANADA LIMITED | | | SCAC4 |
| 11 | DYNH | DYNAMITE TRANSPORTATION INC | | | SCAC4 |
| 12 | DYNM | DYNAMIC CARRIER SERVICES LLC | | | SCAC4 |
| 13 | DYNN | DYNAMO PLAYGROUNDS | | | SCAC4 |
| 14 | DYNO | DYNO TRANSPORTATION, INC | | | SCAC1 |
| 15 | DYNP | DYNAMIC INDUSTRIAL SUPPLY | | | SCAC4 |
| 16 | DYNQ | DYNASTY KITCHEN CABINETS LTD | | | SCAC4 |
| 17 | DYNR | DYNO NOBEL TRANSPORTATION INC | | | SCAC4 |
| 18 | DYNS | DYNASTY TRANSPORTATION, INC. | | | SCAC1 |
| 19 | DYNS | DYNASTY TRANSPORTATION LLC (N/K/A U | | | SCAC4 |
| 20 | DYNT | DYNAMIC TRANSPORT | | | SCAC4 |
| 21 | DYNU | DYNEON LLC | | | SCAC4 |
| 22 | DYNWW | SG Dynamo Weißwasser | | DDR | TRAFFIC |
| 23 | DYNX | Dyno Nobel, Inc. | added 1/1994; 7/2000-7/2005 | | NAKINA |
| 24 | DYNX | Dynabulk Corp. | added 4/1966; 10/1966; eliminated 7/1969 | | NAKINA |
| 25 | DYNX | Dynabulk Corp. | added 4/66; 10/66; eliminated 7/69 | | NRHS |
| 26 | DYNX | Dyno Nobel, Inc. | added 1/94; 7/2000 | | NRHS |
| 27 | DYNX | *DYNABULK CORP. | | | PWRC |
| 28 | DYNX | +DYNO NOBEL, INC. | | | PWRC |
| 29 | DYNX | Dyno Nobel | | | RSRV |
| 30 | DYNX | DYNO NOBEL, INC. | | | SCAC4 |