Stock Drive Products and Sterling Instrument are major ISO 9001:2000 Certified operating divisions of Designatronics Incorporated, a company that began in 1960 as a manufacturer of small mechanical products. Today, Designatronics serves a worldwide customer base in excess of 15,000 accounts ranging from Fortune 100 companies to emerging hi-tech firms.

The company's three modern manufacturing plants, totaling 139,000 square feet, are located on technology-rich Long Island, New York. There, SDP-SI's experienced workforce designs, manufactures and distributes a diverse line of standard and custom, commercial and precision grade components, as well as a full range of electromechanical devices and assemblies.

Widely acknowledged as an industry leader, SDP/SI consistently sets standards for innovative designs and advanced manufacturing techniques.