| 1 | CPZ | Compass Airlines LLC | IATA: CP, Callsign: Compass Rose, IATA Prefix: 003, ICAO Callsign changed to Compass. | USA | AVCODES |
| 2 | CPZ | Compass Airlines LLC | IATA: CP, Callsign: Compass, IATA Prefix: 003, Ceased operation on 05 April 2020. ICAO Callsign changed from Compass Rose. Wholly-owned subsidiary of Trans States Holdings, Inc. | USA | AVCODES |
| 3 | CPZ | Compass Airlines | IATA: CP | | ICAO1 |
| 4 | CPZ | C. P. CHEMICAL | | | PWRC |
| 5 | CPZA | CORPENZA INC | | | SCAC3 |
| 6 | CPZC | CADILLAC PLASTIC & CHEMICAL CO | | | SCAC3 |
| 7 | CPZC | CPS SPECIALIZED LLC | | | SCAC4 |
| 8 | CPZL | CUSTOM CORPORATE LOGISTICS | | | SCAC4 |
| 9 | CPZP | COLORADO PETROLEUM AND ARIZONA PETR | | | SCAC4 |
| 10 | CPZT | CPL TRUCKING | | | SCAC4 |
