| 1 | AGC | Arab Agricultural Aviation Company | Callsign: Agrico, | ET | AVCODES |
| 2 | AGC | Strategic Airlines Pty Ltd. | IATA: VC, Callsign: Strategic, Name changed to Air Australia Airways | AUS | AVCODES |
| 3 | AGC | Strategic Airlines Pty Ltd. t/a Air Australia Airways | IATA: VC, Callsign: Strategic, Commenced operations on 15 November 2011. Ceased opeations on 17 February 2012. Name changed from Strategic Airlines Pty Ltd w.e.f. 15 November 2011. | AUS | AVCODES |
| 4 | AGC | Arab Agricultural Aviation Company | | | ICAO1 |
| 5 | AGC | AMERICAN GREETING CO. | | | PWRC |
| 6 | AGC | AGC Flat Glass Czech a.s., člen AGC Group | | CZ | VKM |
| 7 | AGCA | AGRICOLA LAS MONTANAS S DE RL DE C | | | SCAC4 |
| 8 | AGCB | ALPHA GROUP CORP | | | SCAC4 |
| 9 | AGCC | ANGLO CANADIAN SHIPPING COMPANY | | | SCAC3 |
| 10 | AGCC | AGC TRUCKING LTD | | | SCAC4 |
| 11 | AGCD | AGRICULTURAL COMMODITIES TRANSPORT | | | SCAC3 |
| 12 | AGCE | AGRICULTURAL CARRIERS, INC | | | SCAC3 |
| 13 | AGCE | ACI MOTOR FREIGHT INC | | | SCAC4 |
| 14 | AGCF | AG CO-OP SERVICES INC | | | SCAC4 |
| 15 | AGCG | AGGREGATE CARTAGE | | | SCAC3 |
| 16 | AGCH | A & G COACH INC | | | SCAC3 |
| 17 | AGCI | AG CARRIERS INC | | | SCAC3 |
| 18 | AGCI | ANGELICA ENTERPRISES INC | | | SCAC4 |
| 19 | AGCJ | AGENTES ADUANALES DE SONORA S DE RL | | | SCAC4 |
| 20 | AGCK | AG LINK INCORPORATED | | | SCAC4 |
| 21 | AGCL | ANCHOR CARTAGE LLC | | | SCAC4 |
| 22 | AGCM | AGRICULTURAL CHEMICALS DEVELOPMENT | | | SCAC3 |
| 23 | AGCN | ARGUS TRANSPORT CANADA INC | | | SCAC3 |
| 24 | AGCN | ARGUS TRANSPORT CANADA INC | | | SCAC4 |
| 25 | AGCO | A G CARTAGE INC | | | SCAC3 |
| 26 | AGCO | AGCO CONSULTANTS INC | | | SCAC4 |
| 27 | AGCQ | AG CONTAINER REPAIR COMPANY | | | SCAC3 |
| 28 | AGCR | Alamo Gulf Coast R.R. Co. | added 7/1996; eliminated 10/1998; 7/2000-7/2005 | | NAKINA |
| 29 | AGCR | Alamo Gulf Coast R.R. Co. | added 7/96; eliminated 10/98; 7/2000 | | NRHS |
| 30 | AGCR | ALAMO GULF COAST RAILROAD | | | PWRC |
| 31 | AGCR | Alamo Gulf Coast Railroad | | | RSRV |
| 32 | AGCR | ALAMO GULF COAST RAILROAD COMPANY | | | SCAC4 |
| 33 | AGCT | AGRICULTURAL COMMODITIES TRANSPORT | | | SCAC3 |
| 34 | AGCT | ANGELLE CONCRETE GROUP LLC | | | SCAC4 |
| 35 | AGCU | GREIWING LOGISTICS FOR YOU GMBH | | D | BIC |
| 36 | AGCU | ALFONS GREIWING GMBH | | | SCAC4 |
| 37 | AGCV | AAA GOLD COAST MOVING & STORAGE INC | | | SCAC3 |
| 38 | AGCV | AAA GOLD COAST MOVING & STORAGE INC | | | SCAC4 |
| 39 | AGCW | A & G CARRIERS & ASSOCIATES LLC | | | SCAC4 |
| 40 | AGCX | Procor Ltd. | added 4/1990; 1/1994-7/2005 | | NAKINA |
| 41 | AGCX | Alberta Gas Chemicals Ltd. | added 7/1980; 1/1985; eliminated 4/1990 | | NAKINA |
| 42 | AGCX | Alberta Gas Chemicals, Inc. | added 7/1978; 1/1980; eliminated 7/1980 | | NAKINA |
| 43 | AGCX | North American Car Corp. | added 7/1960; 4/1961-1/1975; eliminated 4/1975 | | NAKINA |
| 44 | AGCX | Vendome Tank Car Co. | 1/1952-10/1957; eliminated 7/1960 | | NAKINA |
| 45 | AGCX | Ohio Tank Car Co. | 7/1935-1/1950 | | NAKINA |
| 46 | AGCX | The Akin Gasoline Co. | 8/1920-7/1923 | | NAKINA |
| 47 | AGCX | Ohio Tank Car Co. | Apr-38 | | NRHS |
| 48 | AGCX | Vendome Tank Car Co. | 1/52-10/57; eliminated 7/60 | | NRHS |
| 49 | AGCX | North American Car Corp. | added 7/60; 4/61-1/75; eliminated 4/75 | | NRHS |
| 50 | AGCX | Alberta Gas Chemicals, Inc. | added 7/78; 1/80; eliminated 7/80 | | NRHS |
| 51 | AGCX | Alberta Gas Chemicals Ltd. | added 7/80; eliminated 4/90 | | NRHS |
| 52 | AGCX | Procor Ltd. | added 4/90; 1/94-7/2000 | | NRHS |
| 53 | AGCX | *THE AKIN GASOLINE CO. | | | PWRC |
| 54 | AGCX | *ALBERTA GAS CHEMICALS LTD. | | | PWRC |
| 55 | AGCX | *OHIO TANK CAR CO. | | | PWRC |
| 56 | AGCX | *NORTH AMERICAN CAR CORP. | | | PWRC |
| 57 | AGCX | +(PROX) PROCOR LIMITED [VENDOME TANK CAR CO.] | | | PWRC |
| 58 | AGCX | Alberta Gas Chemicals (PROCOR) | | | RSRV |
| 59 | AGCX | PROCOR LIMITED | | | SCAC4 |
| 60 | AGCY | ASSOCIATED CROCERS COMPANY OF ST LO | | | SCAC3 |
| 61 | AGCY | ADVANCED GAS COMPANY INC | | | SCAC4 |
| 62 | AGCZ | AMERICAN GREETING CARD | | | PWRC |
