The year was 1991 when, founder and CEO, Daniel J. Marus had an inspiration to create a global service that would deliver exceptional software solutions to replace the existing old software in electronic control units with newer advanced software. For more than the past 25 years, Controller Technologies Corporation has stayed true to their core values and has expanded their innovative products and solutions to include: vehicle diagnostic products, medical practice management software, e-prescription software, general software development, project management, consulting services, and more. With locations in Rochester, Michigan, and Saltillo, Mexico, Controller Tech's experienced team is ready to support and meet their consumers demands.

We owe a big thanks to our clients. We are honored to serve whenever you need our services, and we hope that you'll continue to be a part of our journey.