About

About Twinco Mfg. Company, Inc. Twinco is a leading supplier and producer of electrical and electro-mechanical products for the railroad and transit industry. Established in 1965, the company has grown into an internationally recognized business that now operates in a 50,000 square foot state-of the-art manufacturing facility in Hauppauge, New York With over 50 years of experience in the transportation industry, we provide expert manufacturing and engineering support to clients worldwide. We are an ISO 9001 registered company that performs in accordance to strict quality standards in all that we do. This registration ensures that our customers receive excellent service and consistent, quality products. Our mission is to exceed our customer’s expectations by manufacturing and delivering products of the highest quality at the most competitive prices. Rail Development Group (RDG), founded in 1999, is one of the largest independent Signal Remanufacturing facility in North America. RDG operates a 10,000+ sq. ft. facility in Rochester, NY RDG recognized the need arising in the industry for a central, single-source solution for the freight and passenger rail industry to provide remanufactured signaling products. This need, coupled with RDG’s “better than new for a fraction of the cost” philosophy, has been crucial to RDG’s success.