1. Seminar Group 18850 103rd Ave SW Ste 123, Vashon, WA 98070 Coordinate: 47.43516,-122.46453 Phone: (206) 463-4400
2. Seminars International 18305 Vashon Hwy SW, Vashon, WA 98070 Coordinate: 47.44102,-122.46094 Phone: (206) 463-4400