A question

[Aeroplane]

This is the list that was current as of a few months ago -- name of airline and in brackets their bases:

1. Adventist Aviation Services (Division of PNG Adventist Association) (Goroka)
2. Airlines of PNG (formerly MBA Ltd & Milne Bay Air Pty Ltd) (Port Moresby)
3. Airlink (Madang)
4. Air Niugini (Port Moresby)
5. Asia Pacific Airlines (Fubilan Air Transport Pty Ltd dba / Subsidiary of National Jet Systems Pty Ltd, Australia) (Tabubil)
6. Central Air Transport (Port Moresby)
7. Dovair (Aviation division of Diocese of Vanimo) (Vanimo)
8. Government Flying Unit (Port Moresby)
9. Heli Niugini (Madang, Moro, Porgera & Wewak)
10. Hevi Lift (Mt Hagen)
11. Island Airways (Madang)
12. Islands Nationair (Port Moresby)
13. Kiunga Aviation (Lae)
14. MAF (Mt Hagen)
15. Moresby Aviation (Division of H.R. Holdings Ltd) (Port Moresby)
16. North Coast Aviation (Lae, Popondetta & Wau)
17. NTM Aviation (Division of NTM-New Tribes Mission) (Lae)
18. Pacific Helicopters (Goroka)
19. Police Air Wing (Unit of the Royal PNG Constabulary) (Port Moresby)
20. Regional Air (Member of the Booij Group of Companies / formerly KSS Aviation Pty Ltd) (Madang)
21. Sil Aviation (Aviation Department of SIL Int’l/formerly Summer Institute of Linguistics) (Alyura)
22. Southwest Air (Mendi)
23. Star Airlines (Division of Star Earthmoving Pty Ltd / Associated with Curtain Bros. PNG Ltd) (Port Moresby)
24. Trans Air (Port Moresby)
25. Transniugini Airways (Port Moresby)
26. Tropicair (Port Moresby)
27. Vanair (Division of Garamut Exploration Pty Ltd / formerly Garamut Aviation) (Port Moresby & Vanimo)

Some of these aren't airlines in normal terms, or even in PNG terms, but are private operators.

Info is taken from JP Airline Fleets in case anyone is interested, it also lists complete fleet details.