Jet Aviation’s FBO at London Biggin Hill Airport is now providing fuel, and its facility at Dubai International Airport now includes in-house customs clearance. Separately, this summer Jet Aviation is set to begin construction that will more than double the size of its Dusseldorf, Germany maintenance facility. The project, which should be completed in the fall, will add 20,450 sq ft of workspace. Meanwhile, the Swiss-based firm has added a division dedicated exclusively to marketing its charter services for IPO (initial public offering) roadshows