Original sentence: A number of companies also use the aircraft as part of fractional ownership schemes.The aircraft is operated by private individuals, companies and executive charter operators
Edited sentence: DC Aviation, executive charter company based in Stuttgart.Delta AirElite Business Jets provides charter and fractional use of Gulfstream G550 business jets.FirstFlight Management provides charter of the Gulfstream G550.National Air Services, NAS of Saudi Arabia offers lease and fractional ownership services of Gulfstream G550s in the region.NetJets, a Berkshire Hathaway company which offers fractional ownership of G550