| 1 | SBCX | North American Car Corp. | added 7/1968; 4/1970-1/1975; eliminated 4/1975 | | NAKINA |
| 2 | SBCX | Armour Car Lines | added 1/1960; 4/1961; eliminated 1/1963 | | NAKINA |
| 3 | SBCX | San Benito Co., Inc. | 4/1947 | | NAKINA |
| 4 | SBCX | Stokely Brothers & Co., Inc. | 1/1941-1/1946 | | NAKINA |
| 5 | SBCX | Seaboard Chemical Co. | 8/1920-7/1923 | | NAKINA |
| 6 | SBCX | Armour Car Lines | added 1/60; 4/61 | | NRHS |
| 7 | SBCX | North American Car Corp. | added 7/68; 4/70-1/75; eliminated 4/75 | | NRHS |
| 8 | SBCX | *SEABOARD CHEMICAL CO. | | | PWRC |
| 9 | SBCX | *SAN BENITO CO., INC. [STOKLEY BROTHERS & CO., INC.] | | | PWRC |
| 10 | SBCX | *NORTH AMERICAN CAR CORP. [ARMOUR CAR LINES] | | | PWRC |
