At DASCO, our mission is to help people breathe, sleep and feel better. Discover just how many ways DASCO can help you. DASCO is a family owned company, helping families in need of home medical equipment since 1987. Our home office is located in Westerville, Ohio with several branches throughout Ohio, West Virginia, Kentucky and Indiana to serve you. DASCO was established in 1987 by Don Seeley and is now owned by his children, Jason and Rachel.