Twinco Manufacturing is a supplier of various rail and transit products including vital relays & components, automatic train stops, impedance bonds, switch heater control cases, 110VDC switch machine rectifiers, AREMA (AAR) hardware components, and miscellaneous signal components including plastic tags and wire markers.

Twinco’s company headquarters, as well as its engineering, marketing and manufacturing divisions occupy a modern 50,000 square foot facility in Hauppauge, New York. We provide a wide range of technical disciplines and capabilities, including manufacturing engineering support for special projects.

With over 40 years of proven experience serving the transportation industry and as an ISO 9001/2008 certified company, Twinco understands customer requirements and strives to provide them with quality products that meet or exceed their expectations.

Monday - Friday

8:00 am - 4:30 pm EST