| 1 | PBCX | Tyson Fresh Meats | added 4/2006 | | NAKINA |
| 2 | PBCX | Parker Brothers & Co., Inc. | added 1/1974; 1/1975; eliminated 4/1976 | | NAKINA |
| 3 | PBCX | The Portsmouth By-Product Coke Co. | 7/1923-7/1930 | | NAKINA |
| 4 | PBCX | Parker Brothers & Co., Inc. | added 1/74; 1/75; eliminated 4/76 | | NRHS |
| 5 | PBCX | *PORTSMOUTH BY-PRODUCT COKE CO. | | | PWRC |
| 6 | PBCX | *PARKER BROTHERS & CO., INC. | | | PWRC |
| 7 | PBCX | +TYSON FRESH MEATS | | | PWRC |
| 8 | PBCX | TYSON FRESH MEATS | | | SCAC4 |
