Where is the company, which built the roller coaster Comet, based?
Philadelphia Toboggan Coasters Philadelphia Toboggan Coasters, commonly referred to as PTC, is one of the oldest existing roller coaster manufacturing companies in the world. Based in Hatfield, Pennsylvania, it was established in 1904 by Henry Auchey and Chester Albright under the name Philadelphia Toboggan Company. The company manufactured carousels, wooden roller coasters, toboggans (roller coaster cars) and later, roller coaster trains.
Tandem Group Tandem Group is a British-based designer, developer and distributor of sports and leisure products. Based in Castle Bromwich, West Midlands, the company is listed on the Alternative Investment Market of the London Stock Exchange.