Adolph G. Miller founded the A. G. Miller Company in 1914. At that time, a large portion of his business came from the automobile industry. The young company was immediately recognized for producing high quality parts, enabling Miller to secure contracts with the Springfield based Rolls Royce Company for production of fenders, hoods and door panels.

In the 1950's, A. G. Miller's son, Frederick W. Miller, began to expand the company to meet the demands of the industrial boom. This trend continued through the 1960's and 1970's when the A. G. Miller Company was the first sheet metal fabricator in the northeast to obtain a Numerically Controlled Turret Punch Press.

Frederick R. Miller, grandson of A. G. Miller, continues the founder's commitment to be a leader in the industry by bringing the company into the computer age and maintaining state of the art capabilities as displayed in 1995 with the addition of CNC Laser Production Cutting.