Curtis Door Systems Inc. has been designing, manufacturing and commissioning door systems for trains since, 1999. Previously, our organization was known as SMC Transit International (1987–1999). Our team of experienced and innovative engineers specialize in the development of door systems for the transit industry. Using the latest technology and innovation  we can create door systems that are unique in design and operation. Using this technology we can also maintain door systems, acquired by our company, dating back to 1987. We are dedicated to supporting our customers from initial concept design through the service life of each door system.