| 1 | OLC | Solar Cargo, C.A. | IATA: 4S, Callsign: Solarcargo, IATA Prefix: 644, | YV | AVCODES |
| 2 | OLC | Solar Cargo | | | ICAO1 |
| 3 | OLCC | OLYMPIC CASCADE CORPORATION | | | SCAC3 |
| 4 | OLCI | OLSON CARRIERS INC | | | SCAC3 |
| 5 | OLCI | OVERLAND CUSTOM COACH (2007) INC | | | SCAC4 |
| 6 | OLCL | OLETA COACH LINES INC | | | SCAC3 |
| 7 | OLCL | OLSEN, L C L INC | | | SCAC4 |
| 8 | OLCM | ON THE LEVEL CARPENTRY & MILLWORK | | | SCAC4 |
| 9 | OLCN | OIL CENTRAL INC | | | SCAC4 |
| 10 | OLCT | O-LAND CONTAINER TRANSPORT INC | | | SCAC3 |
| 11 | OLCU | OILCORE UAB | | LT | BIC |
| 12 | OLCY | ORTHMAN LOGISTICS COMPANY | | | SCAC4 |
