| 1 | SRI | Air Safaris And Services (NZ) Ltd. | Callsign: Airsafari, | NZ | AVCODES |
| 2 | SRI | Air Safaris and Services | | | ICAO1 |
| 3 | SRI | SRI Rail Invest | | D | TRAFFIC |
| 4 | SRI | SRI Rail Invest GmbH | | DE | VKM |
| 5 | SRIA | SEVEN R TRANSPORTATION INC | | | SCAC4 |
| 6 | SRIB | SIROB IMPORTS INC | | | SCAC4 |
| 7 | SRIE | SERIE-ACT PEINTURE | | | SCAC4 |
| 8 | SRIK | SRI TRUCKING LLC | | | SCAC4 |
| 9 | SRIL | Sri Lanka Railways | Real: SLR | CL | TRAFFIC |
| 10 | SRIM | STAR OIL INC | | | SCAC4 |
| 11 | SRIN | SPRING, BRUCE | | | SCAC4 |
| 12 | SRIO | SOURIS RIVER CANOES | | | SCAC4 |
| 13 | SRIP | SMITH, AL RIGGING INC | | | SCAC4 |
| 14 | SRIQ | STONE RIVER INC | | | SCAC4 |
| 15 | SRIR | SUPER TRANSPORT INTERNATIONAL LTD | | | SCAC4 |
| 16 | SRIS | SUNRISE RANCH | | | SCAC4 |
| 17 | SRIU | CEYLON SHIPPING CORP LTD | | | SCAC4 |
| 18 | SRIV | SRI VIDYA TEMPLE SOCIETY | | | SCAC4 |
| 19 | SRIW | SEA RANK INTERNATIONAL INC | | | SCAC4 |
| 20 | SRIX | Safety Refrigeration, Inc. | 7/1930-7/1935 | | NAKINA |
| 21 | SRIX | Southern Region Industrial Realty, Inc. | added 4/1982; eliminated 10/1989; 1/1994 (not listed) | | NAKINA |
| 22 | SRIX | Southwest Rail Industries, Inc. | added 10/1998; 7/2000-7/2005; eliminated 1/2007 | | NAKINA |
| 23 | SRIX | Southern Region Industrial Realty, Inc. | added 4/82; eliminated 10/89; 1/94 | | NRHS |
| 24 | SRIX | Southwest Rail Industries, Inc. | added 10/98; 7/2000 | | NRHS |
| 25 | SRIX | *SAFETY REFRIGERATION, INC. | | | PWRC |
| 26 | SRIX | *SOUTHERN REGION INDUSTRIAL REALTY INC. | | | PWRC |
| 27 | SRIX | *SPERRY RAIL, INC. | | | PWRC |
| 28 | SRIX | +SOUTHWEST RAIL INDUSTRIES, INC. | | | PWRC |
| 29 | SRIX | Southern Region Industrial Realty (Southwest Rail Industries) | | | RSRV |
| 30 | SRIX | SOUTHWEST RAIL INDUSTRIES INC | | | SCAC4 |
| 31 | SRIY | S R CARRIERS CO | | | SCAC4 |
