The GTCTC offers more than 119,000 square feet of flexible event space for meetings, conferences, tradeshows and celebrations. Conveniently located just south of Seattle, 20 miles south of SeaTac Airport, close to I-5, within walking distance of two premium hotels and more options close by. We are dedicated to protecting the environment through implementation of sustainability practices and green initiatives. The GTCTC is a full service facility providing a team of seasoned staff members to assist you in planning and implementing a successful event.