| 1 | ABS | Transwest Air Limited | IATA: 9T, Callsign: Athabaska, IATA Prefix: 909, Name changed from Athabaska Airways Ltd. Merged with Air Sask | CDN | AVCODES |
| 2 | ABS | Athabaska Airways Ltd. | IATA: 9T, Callsign: Athabaska, IATA Prefix: 909, Name changed to Transwest Air Limited. Merged with Air Sask | CDN | AVCODES |
| 3 | ABS | Afrijet Business Services (ABS) | IATA: J7, IATA Prefix: 277, Name changed to Afrijet Business Services d/b/a Afrijet | G | AVCODES |
| 4 | ABS | Afrijet Business Services d/b/a Afrijet | IATA: J7, IATA Prefix: 277, Name changed from Afrijet Business Services (ABS). | G | AVCODES |
| 5 | ABS | Transwest Air | IATA: 9T | | ICAO1 |
| 6 | ABS | Alabama Southern R.R. | added 4/2008 | | NAKINA |
| 7 | ABS | ALABAMA SOUTHERN RAILROAD | | | PWRC |
| 8 | ABS | Alabama Southern Railroad | | | RSRV |
| 9 | ABS | Autobus Sachsen GmbH | | D | TRAFFIC |
| 10 | ABSA | ABSOLUTE DELIVERY INC | | | SCAC4 |
| 11 | ABSC | ALABAMA STORAGE CO INC | | | SCAC3 |
| 12 | ABSD | ABERDEEN SCHOOL DISTRICT NO 58 | | | SCAC3 |
| 13 | ABSG | AMBASSADOR TRANSFER AND STORAGE | | | SCAC3 |
| 14 | ABSG | ABS GLOBAL (CANADA) INC | | | SCAC4 |
| 15 | ABSH | AIR BARR SHIPPING CO INC | | | SCAC3 |
| 16 | ABSI | A B C SPECIAL DELIVERY INC | | | SCAC3 |
| 17 | ABSI | ALLIED BUILDING STORES INC | | | SCAC4 |
| 18 | ABSJ | ASTRO BUS LINES | | | SCAC3 |
| 19 | ABSK | ABSHER TRUCKING COMPANY INC | | | SCAC3 |
| 20 | ABSL | ABSOLUTE DELIVERY NETWORK, INC | | | SCAC3 |
| 21 | ABSL | ABSOLUTE LOGISTICS LLC | | | SCAC4 |
| 22 | ABSM | ABS FUEL SYSTEMS LLC | | | SCAC4 |
| 23 | ABSN | ABERDOUR SHIPPING LTD | | | SCAC3 |
| 24 | ABSO | ABC MESSENGER SERVICE INC | | | SCAC3 |
| 25 | ABSO | ABSOLUTE TRANSPORTATION | | | SCAC4 |
| 26 | ABSP | ABERNATHYS SCRAP METAL INC | | | SCAC3 |
| 27 | ABSP | ABSOULUTE TRANSPORT INC | | | SCAC4 |
| 28 | ABSQ | A-BEST WAY DELIVERY CO INC | | | SCAC3 |
| 29 | ABSR | ABRASIVE SOLUTIONS INC | | | SCAC4 |
| 30 | ABSU | AL SADIK AHMED A. BAABOUD SHIPPING CO. | | SA | BIC |
| 31 | ABSU | ABICON SALES & REPAIR BV | | | SCAC4 |
| 32 | ABSV | A & B TRUCK SERVICE INC | | | SCAC3 |
| 33 | ABSX | American Crystal Sugar Co. | 7/1935-1/1943 | | NAKINA |
| 34 | ABSX | American Beet Sugar Co. | 7/1932 | | NAKINA |
| 35 | ABSX | American Crystal Sugar Co. | Apr-38 | | NRHS |
| 36 | ABSX | *AMERICAN BEET SUGAR CO. (AMERICAN CRYSTAL SUGAR CO) | | | PWRC |
| 37 | ABSX | +ALBERT BROS., INC. | | | PWRC |
| 38 | ABSX | American Beet Sugar (Albert Brothers Inc) | | | RSRV |
| 39 | ABSX | ALBERT BROS INC | | | SCAC4 |
