At one point, SimCom was paired with the Pan Am Flight Academy, which provides more regional and commercial airline-geared flight training. But the companies separated in 2006, so the only airline-oriented flight training SimCom now provides is in the Jetstream 41 and the Dornier 328. SimCom is focusing, once again, on general aviation training. But as its courses have expanded into bigger jets, the customer base at SimCom has shifted. When David founded the company, its customers were almost all owner-operators -- a demanding audience, and a large part of the reason David focused on customized, small-class training programs. Now, almost 45 percent of the 8,000 people who train at SimCom each year are professional corporate pilots, sent there by their employers. Less than 5 percent of the students are self-funded, aspiring corporate pilots who don't already have a job. But despite the shift, SimCom's dedication to customization and small class size hasn't changed.