In not even five years since their inception, membership programs have created a new class of business aviation access while changing charter industry practices and perceptions of customer habits (for example, travelers’ willingness to share the cabin of a business jet with strangers). These programs often have little in common besides providing access to a closed fleet, and range from relatively low-cost subscription access “private” airlines to traditional operators of ultra-long-range jet fleets. The companies highlighted here are at the forefront of defining and expanding these new access paradigms.