... , Massachusetts and Ski Roundtop, Pennsylvania have recently opened. Several franchise-based companies (SphereMania, Orb 360) as well as OGO ... model was to develop the activity world-wide via a franchise system. In 2000, van der Sluis exited from ... Around this time, ZORB's European master franchise operator, Michael Stemp, and Hungarian master franchise operator, Attila Csató, ended their affiliation ...