The inventor of the Jet Card 20 years later finds itself atop the growing category it created (Updated Dec. 27, 2019) Founded in 1999, Sentient Jet lays claim as inventor of the jet card. Twenty years later the company is no longer a start-up trying to prove a concept, but with 6,000 members a category … Continue reading Jet Card Insider: Sentient Jet combines scale, service and flexibility