Question: Flights are also operated on behalf of Lufthansa by a Swiss airline that operates scheduled services for other airlines as well as charter flights for corporations and who else? 
Context: Martinair, legally "Martinair Holland N.V.", is a Dutch cargo airline headquartered and based at Amsterdam Airport Schiphol and a subsidiary of Air France-KLM.  The airline was founded in 1958 by Martin Schröder.  Since 2011, Martinair has operated entirely as a cargo airline with scheduled services to 20 destinations worldwide and additional charter flights.  Prior to that date, passenger flights were also operated. Adria Airways d.d., formerly Inex-Adria Aviopromet, later Inex-Adria Airways, is the largest airline in Slovenia.  The majority of Adria Airways' business is in scheduled flights, but it also provides charter and ad hoc flights.  Adria currently operates to 24 scheduled and 22 charter destinations throughout Europe.  Most of the flights are operated out of Ljubljana, the primary hub for Adria Airways, but the airline also provides both scheduled and charter flights out of Pristina and Tirana.  It has been a Star Alliance member since 2004 and a Lufthansa partner since 1996.  It was among the first airlines in the world to receive IOSA registration. As of July 2017, Lufthansa including Lufthansa Regional (but excluding all other Lufthansa Group members) operates flights to 18 domestic destinations and 193 international destinations in 81 countries across Africa, Americas, Asia, and Europe.  Flights operated on behalf of Lufthansa by PrivatAir are also listed. Air Charter was an early post-World War II private, British independent airline formed in 1947.  The airline conducted regular trooping flights to Cyprus as well as worldwide passenger and freight charter flights from its bases at Southend Airport and Stansted.  Following Freddie Laker's acquisition of Air Charter in 1951, Aviation Traders and Aviation Traders (Engineering) became associated companies.  From 1955, it also operated scheduled coach-air/vehicle ferry services.  These initially linked London and Paris (via Southend and Calais).  In 1958, the process of transferring Air Charter's coach-air/vehicle ferry operation to sister company Channel Air Bridge began.  In 1959, Air Charter became part of the Airwork group.  In 1960, Airwork joined with Hunting-Clan to form British United Airways (BUA). ASL Airlines (Ireland) Limited, formerly "Air Contractors", is a freight and passenger airline.  It operates scheduled freight services throughout Europe on behalf of major integrators such as FedEx Feeder and DHL Express; and operates unscheduled passenger air charter flights, as well as some wet lease services for scheduled airlines.  ASL Airline Holdings Limited, the parent company of ASL Airlines Ireland, has its head office at 3 Malahide Road, Swords, County Dublin, Ireland. ATA Airlines, Inc. – formerly known as American Trans Air and commonly referred to as ATA – was an American low-cost scheduled service and charter airline based in Indianapolis, Indiana.  ATA operated scheduled passenger flights throughout the U.S. mainland and Hawaii and San Juan, Puerto Rico, as well as military and commercial charter flights around the world.  ATA also operated flights to Portugal (LIS, OPO, TER, PDL and SMA).  In its early days the airline did charters throughout the World and had bases in Chicago, Detroit, New York, Indianapolis, Oakland and Milwaukee.  Later when they entered scheduled service the airlines maintained focus cities at Chicago Midway International Airport, Honolulu International Airport, and Oakland International Airport. PrivatAir is a Swiss airline operating business jets, headquartered at Geneva Airport in Meyrin.  It operates scheduled services for other airlines as well as charter flights for corporations and VIPs. Scottish Airlines (Prestwick) Limited was formed in 1946 as a subsidiary of Scottish Aviation Limited.  The airline commenced worldwide passenger and cargo charter flights from bases at Prestwick and Stansted.  It also participated in the Berlin Airlift, became a trooping carrier for the British Armed Forces, and began contract flights on behalf of Air France, British European Airways (BEA), Compagnie Belge des Transports Aériens, Iceland Airways and KLM.  Scottish Airlines also operated scheduled services in its own right between Prestwick Airport in Scotland and Ronaldsway Airport on the Isle of Man.  Scottish Airlines ceased operations in 1960.  Its aircraft and routes were taken over by Dan-Air in 1961. JSC "Domodedovo Airlines" (Russian: ОАО «Авиакомпания «Домодедовские авиалинии» "OAO Aviakompaniya Domodedovskiye Avialinii" ) was an airline with its head office on the grounds of Domodedovo International Airport in Domodedovsky District, Moscow Oblast, Russia.  It operated scheduled flights within Russia and the CIS, with a focus on flights to the Russian Far East.  The airline also operated scheduled and ad hoc charter flights to P. R. China, Europe, Thailand, Maldives, Malaysia and Singapore. Helvetic Airways is a Swiss airline headquartered in Kloten with its fleet stationed at Zürich Airport.  It operates flights to destinations in Europe and Northern Africa, mainly leisure markets, but also to business destinations on its own behalf as well as scheduled flights on behalf of Swiss International Air Lines and Lufthansa using their fleet of Embraer 190s and Fokker 100s.
Answer: VIPs.