Welcome to Tri-State School Supply! Don’t let the name fool you, we do not sell any books or crayons. We are an over 80 year old Janitorial Supply House and have always been local and family owned. We are an honest company and offer competitive prices and the best in customer service. We treat all of our large and small customers the same, with respect and courtesy. We are a simple homegrown, down to earth Southern Indiana Company and we are ready to help you with all of your supply needs.