| 1 | SON | Sunshine Air Tours | Callsign: Sunshine Tours, | USA | AVCODES |
| 2 | SON | Hesa Airlines | IATA: H8, Callsign: Sepahan, Name changed to Sepahan Airlines during 2011. | IR | AVCODES |
| 3 | SON | Sonas Aviation | Callsign: Sonas, Name changed to Acass Ireland Ltd. | IRL | AVCODES |
| 4 | SON | Acass Ireland Ltd. | Callsign: Sonas, Name changed from Sonas Aviation. | IRL | AVCODES |
| 5 | SON | Sunshine Air Tours | | | ICAO1 |
| 6 | SONA | STONE TRANSPORT SERVICES LLC | | | SCAC4 |
| 7 | SONB | SONOCO RECYCLING INC | | | SCAC4 |
| 8 | SONC | SOLUTIONS LLC | | | SCAC4 |
| 9 | SONE | STONE EXPERTS, THE | | | SCAC4 |
| 10 | SONF | SONCO FENCE | | | SCAC4 |
| 11 | SONL | SON LIGHT TRUCKING INC | | | SCAC4 |
| 12 | SONM | SEVEN NINE TWO ZERO THREE FIVE (7 | | | SCAC4 |
| 13 | SONO | SONOCO PRODUCTS COMPANY INC | | | SCAC4 |
| 14 | SONQ | SLOAN CONSTRUCTION CO INC | | | SCAC4 |
| 15 | SONR | SON TRANSPORT SERVICES LLC | | | SCAC4 |
| 16 | SONU | SOACI SN | | CI | BIC |
| 17 | SONW | S CUBED PACORINI LOGISTICS LLC | | | SCAC4 |
| 18 | SONX | Sonford Products Corp. | added 1/1965; 7/1965-4/1970; eliminated 4/1971 | | NAKINA |
| 19 | SONX | Agtrans Corp. | added 10/1986; eliminated 7/1991 | | NAKINA |
| 20 | SONX | Soneco Service, Inc. | added 7/1991; eliminated 7/1992; 1/1994-7/2005 (not listed) | | NAKINA |
| 21 | SONX | Sonford Products Corp. | added 1/65; 7/65-4/70; eliminated 4/71 | | NRHS |
| 22 | SONX | Agtrans Corp. | added 10/86; eliminated 7/91 | | NRHS |
| 23 | SONX | Soneco Service, Inc. | added 7/91; eliminated 7/92; 1/94-7/2000 | | NRHS |
| 24 | SONX | *SONFORD PRODUCTS CORP. | | | PWRC |
| 25 | SONX | *AGTRANS CORP. | | | PWRC |
| 26 | SONX | *SONECO SERVICES, INC. | | | PWRC |
| 27 | SONX | Soneco Services | | | RSRV |
| 28 | SONY | SONY SUPPLY CHAIN SOLUTIONS INC | | | SCAC4 |
