| 1 | ACHX | American Cyanamid Co. | 1/1994 (not listed); added 10/1996; eliminated 4/1997; 7/2000 (not listed) | | NAKINA |
| 2 | ACHX | USS Agri-Chemicals, Inc., Division of United States Steel Corp. | added 4/1970; 4/1970-1/1975; eliminated 4/1977; 1/1980 | | NAKINA |
| 3 | ACHX | USS Agri-Chemicals, Inc., Subsidiary of United States Steel Corp. | eliminated 4/1970 | | NAKINA |
| 4 | ACHX | USS Agri-Chemicals, Inc. | added 10/1968 | | NAKINA |
| 5 | ACHX | Armour and Co. | 7/1965-10/1966 | | NAKINA |
| 6 | ACHX | Armour Car Lines | eliminated 10/1968 | | NAKINA |
| 7 | ACHX | Atlas Chemical Co. | 1/1952; 7/1954; eliminated 7/1956 | | NAKINA |
| 8 | ACHX | Allis-Chalmers Manufacturing Co. | 7/1930-4/1938 | | NAKINA |
| 9 | ACHX | Allis-Chalmers Manufacturing Co. | Apr-38 | | NRHS |
| 10 | ACHX | Atlas Chemical Co. | 1/52; eliminated 7/56 | | NRHS |
| 11 | ACHX | Armour and Co. | 7/65-10/66 | | NRHS |
| 12 | ACHX | Armour Car Lines | eliminated 10/68 | | NRHS |
| 13 | ACHX | USS Agri-Chemicals, Inc. | added 10/68 | | NRHS |
| 14 | ACHX | USS Agri-Chemicals, Inc., Subsidiary of United States Steel Corp. | eliminated 4/70 | | NRHS |
| 15 | ACHX | USS Agri-Chemicals, Inc., Division of United States Steel Corp. | added 4/70; 4/70-1/80 | | NRHS |
| 16 | ACHX | American Cyanamid Co. | 1/94; added 10/96; eliminated 4/97; 7/2000 | | NRHS |
| 17 | ACHX | *ALLIS-CHALMERS MANUFACTURING CO. | | | PWRC |
| 18 | ACHX | *ATLAS CHEMICAL CO. | | | PWRC |
| 19 | ACHX | *ARMOUR CAR LINES | | | PWRC |
| 20 | ACHX | *USS AGRI-CHEMICALS DIVI. UNITED STATES STEEL CORP. | | | PWRC |
| 21 | ACHX | *AMERICAN CYANAMID CO. | | | PWRC |
| 22 | ACHX | ARMOUR AND CO | | | SCAC3 |