TE Connectivity, 2900 Fulling Mill Rd, Middletown, PA 17057, US

Established in 1997, Sentinel Connector Systems Inc. is a full-service manufacturer of connectors, specializing in RJ Modular Systems. Based in York, Pa., the firm manufactures standard and high-speed plugs and jacks. Operating from its 43,500-square-foot manufacturing facility, the firm manufactures plastic components on Battenfeld and Cincinnati molding presses. Its engineering department uses state-of-the-art computer-aided design (CAD) equipment and a fully equipped tool room. Sentinel Connector Systems Inc. designs and manufactures modular connector systems for the premise wiring, computer networking, medical and telecommunications industries.