The privately held firm was started in 1943 to manufacture miniature precision components for the electronics industry. From it's beginning, the company has been committed to producing high quality components for commercial, industrial and military markets.

This commitment to quality has been most recently manifested by the company becoming the first in its field to achieve ISO 9001 certification (BVQI 48226). Other examples of pioneering in quality leadership include SPC manufacturing techniques and qualification to MIL-Q-9858. Grayhill was also the first switch manufacturer to achieve Preferred Supplier status with the leading computer and communications companies.

Grayhill, Inc. is a leading manufacturer of surface mount and thru-hole DIP switches, pushbutton and rotary switches, encoders, keyboards, keypads and front panels, I/O modules, industrial control systems, and wireless products.

In addition to its innovative engineering and manufacturing, Grayhill has also been a marketing pioneer. From its inception, its products have been available to customers, not only on a direct basis, but also through a national and international network of stocking distributors.