Welcome to PrepNorthwest! Founded in 2004, PrepNorthwest has established itself as one the most effective SAT and ACT test preparation and High School Academic Coaching firms in the Greater Eastside and Seattle area. We specialize in creating unique, catered instruction to maximize your performance. Our philosophy * Get Results. * Have Fun. When you sign up, we give you an idea of what you're in for, show you how to win, and provide you with all the materials you'll need.