| 1 | SASX | Continental Tank Car Corp. | added 1/1979; 1/1980; eliminated 7/1982 | | NAKINA |
| 2 | SASX | Suburban Fuel Tank Car Co. | added 7/1965; 7/1965-1/1975; eliminated 1/1979 | | NAKINA |
| 3 | SASX | Olin Mathieson Chemical Corp. | added 10/1954; 10/1957-4/1961; eliminated 7/1965 | | NAKINA |
| 4 | SASX | Mathieson Chemical Corp. | 1/1950-7/1954; eliminated 10/1954 | | NAKINA |
| 5 | SASX | Southern Acid & Sulphur Co., Inc. | 7/1932-4/1947 | | NAKINA |
| 6 | SASX | Southern Acid & Sulphur Co. | 8/1920-7/1930 | | NAKINA |
| 7 | SASX | Southern Acid & Sulphur Co., Inc. | Apr-38 | | NRHS |
| 8 | SASX | Mathieson Chemical Corp. | Jan-52 | | NRHS |
| 9 | SASX | Olin Mathieson Chemical Corp. | 10/57-4/61; eliminated 7/65 | | NRHS |
| 10 | SASX | Suburban Fuel Tank Car Co. | added 7/65; 7/65-1/75; eliminated 1/79 | | NRHS |
| 11 | SASX | Continental Tank Car Corp. | added 1/79; 1/80; eliminated 7/82 | | NRHS |
| 12 | SASX | *SOUTHERN ACID & SULPHUR CO., INC. | | | PWRC |
| 13 | SASX | *OLIN MATHIESON CHEMICAL CORP. [MATHIESON CHEMICAL CORP.] | | | PWRC |
| 14 | SASX | *CONTINENTAL TANK CAR CORP. [SUBURBAN FUEL TANK CAR CO.] | | | PWRC |
| 15 | SASX | +KDL TRANSPORTATION, LLC d/b/a SA SERVICES, LLC | | | PWRC |
| 16 | SASX | KDL TRANSPORTATION LLC DBA SA SERVI | | | SCAC4 |
