William Andrew Christie

Air Charter Service Group operates as a holding company with interest in the lease and charter of aircrafts. It provides clients with the comprehensive services, including maintaining an aircraft database and managing up to the minute information of the movements. The firm offers passenger, business, airliner and executive jet charter services. The company operates in three business segments, which includes cargo, executive jets and commercial jets. It has operations in North America, South America, Europe, Africa, the Middle East and Asia. Air Charter Service Group was founded by Christopher D. S. Leach in 1990 and is headquartered in Surbiton, the United Kingdom.

Mountfitchet Group Ltd. provides cargo and passenger aircraft charter services. It offers nonscheduled passenger services. The company is headquartered in Surbiton, the United Kingdom.