Great Coasters International

Great Coasters International, Inc. (GCI or GCII) is a Sunbury, Pennsylvania-based roller coaster manufacturer which has created several award-winning rides since its formation in 1994. Starting in 2006 with Thunderbird in Finland, the company expanded beyond the United States and began building coasters in Europe and Asia. Güenter-Engelhardt GmbH handles the company's marketing rights in Europe. In addition to designing and building new roller coasters, GCI also refurbishes and re-tracks existing roller coasters, regardless of manufacturer.

Great Coasters International

Great Coasters International, Inc. (GCI or GCII) is a Sunbury, Pennsylvania-based roller coaster manufacturer which has created several award-winning rides since its formation in 1994. Starting in 2006 with Thunderbird in Finland, the company expanded beyond the United States and began building coasters in Europe and Asia. Güenter-Engelhardt GmbH handles the company's marketing rights in Europe. In addition to designing and building new roller coasters, GCI also refurbishes and re-tracks existing roller coasters, regardless of manufacturer.