| 1 | ACEX | Ace Cogeneration Co. | added 1/1993; 1/1994-7/2005 | | NAKINA |
| 2 | ACEX | Blue Circle Atlantic Inc. | added 4/1986; eliminated 4/1987 | | NAKINA |
| 3 | ACEX | Atlantic Cement Co., Inc. | added 7/1973; 1/1975-1/1985; eliminated 4/1986 | | NAKINA |
| 4 | ACEX | Atlantic City Electric Power Co. | 1/1943-1/1950 | | NAKINA |
| 5 | ACEX | Atlantic Cement Co., Inc. | added 7/73; 1/75-1/80; eliminated 4/86 | | NRHS |
| 6 | ACEX | Blue Circle Atlantic Inc. | added 4/86; eliminated 4/87 | | NRHS |
| 7 | ACEX | Ace Cogeneration Co. | added 1/93; 1/94-7/2000 | | NRHS |
| 8 | ACEX | *ATLANTIC CITY ELECTRIC POWER CO. | | | PWRC |
| 9 | ACEX | *ATLANTIC CEMENT CO., INC. | | | PWRC |
| 10 | ACEX | *BLUE CIRCLE ATLANTIC INC. | | | PWRC |
| 11 | ACEX | *ALTAMONT COMMUTER EXPRESS AUTHORITY | | | PWRC |
| 12 | ACEX | +ACE COGENERATION COMPANY | | | PWRC |
| 13 | ACEX | Atlantic City Electric Power | | | RSRV |
| 14 | ACEX | ACE COGENERATION COMPANY | | | SCAC4 |
| 15 | ACEX | Altamont Commuter Express Authority | | USA | TRAFFIC |