| 1 | DSL | Diamond Sakha Airlines | Callsign: Diamond Air, | RUS | AVCODES |
| 2 | DSL | Meridian Aviation Limited | Callsign: Diesel, | GB | AVCODES |
| 3 | DSL | Meridian Aviation | | | ICAO1 |
| 4 | DSL | DENVER & RIO GRAND WESTERN RR | | | PWRC |
| 5 | DSL | D'S LIMOUSINE SERVICE LTD | | | SCAC4 |
| 6 | DSLA | DSL TRUCKING LLC | | | SCAC4 |
| 7 | DSLB | DIAMOND SPRINGS LEASING LLC | | | SCAC4 |
| 8 | DSLE | DISPATCH SERVICES LLC | | | SCAC4 |
| 9 | DSLF | DENVER-SALIDA-LEADVILLE FREIGHTLINE, INC | | | SCAC1 |
| 10 | DSLF | DOS LAREDOS TRANSFERS | | | SCAC4 |
| 11 | DSLK | DISTRIBUTION LINK LLC | | | SCAC4 |
| 12 | DSLN | DSL INC | | | SCAC4 |
| 13 | DSLP | DIESEL TRANSPORT INC | | | SCAC4 |
| 14 | DSLQ | DAS LOGISTICS | | | SCAC4 |
| 15 | DSLR | DEEMAC SERVICES LLC | | | SCAC4 |
| 16 | DSLT | DSL TRANSPORTATION SERVICES | | | SCAC1 |
| 17 | DSLT | DYER STRAIGHTS LOGISTICS LLC | | | SCAC4 |
| 18 | DSLU | DANUBE SHIPPING SERVICE LIMITED | | HK | BIC |
| 19 | DSLU | DISTRIBUTION SERVICESS LTD. | | | SCAC1 |
| 20 | DSLU | DELTA SHIPPING SERVICES B V | | | SCAC4 |
| 21 | DSLV | DM SHIPPING LIMITED | | | SCAC4 |
| 22 | DSLX | Degussa Corp. | added 10/2004; 7/2005 | | NAKINA |
| 23 | DSLX | Degussa Engineered Carbons LP | added 4/2003; eliminated 10/2004 | | NAKINA |
| 24 | DSLX | DeGussa Corp. | added 4/1997; 7/2000; eliminated 4/2003 | | NAKINA |
| 25 | DSLX | Canada and Dominion Sugar Co., Ltd. | 7/1932-4/1961; eliminated 10/1961 | | NAKINA |
| 26 | DSLX | The Dominion Sugar Co., Ltd. | 7/1930 | | NAKINA |
| 27 | DSLX | Dominion Sugar Co. (Canada and Dominion Sugar Co., Ltd.) | 4/38-1/52 | | NRHS |
| 28 | DSLX | Canada and Dominion Sugar Co. | 10/57-4/61 | | NRHS |
| 29 | DSLX | DeGussa Corp. | added 4/97; 7/2000 | | NRHS |
| 30 | DSLX | *CANADA & DOMINION SUGAR CO., LTD. [DOMINION SUGAR CO., LTD.] | | | PWRC |
| 31 | DSLX | +DEGUSSA CORPORATION [DEGUSSA ENGINEERED CARBONS LP] | | | PWRC |
| 32 | DSLX | DeGussa Corporation | | | RSRV |
| 33 | DSLX | DEGUSSA CORPORATION | | | SCAC4 |
| 34 | DSLZ | INTERMODAL SERVICES, INC. | | | PWRC |
| 35 | DSLZ | Intermodal Services Inc. | | | RSRV |
| 36 | DSLZ | INTERMODAL SERVICES, INC. | | | SCAC4 |
