More than 45 Years of Proven Leadership. ASI leads the architectural signage market by providing consultative services for comprehensive wayfinding and identity solutions to companies throughout the U.S. and the world. We offer superior product solutions for interior, exterior and digital signage. From our proven standard product assortment to our custom design and manufacturing capabilities, ASI is focused on providing our clients with progressive products and services tailored to meet their exact needs today and in the future.