Acorn Engineering Company manufactures stainless steel plumbing products and caters to specialty markets such as schools, correctional facilities, construction companies and engineering firms. The company has more than 75 patents and several major product lines with office and manufacturing space in the United States, Canada and the United Kingdom. Acorn Engineering includes companies such as: Neo-Metro, which specializes in luxury bath fixtures; Whitehall Manufacturing, which specializes in healthcare and therapy products; Elmdor Stoneman Manufacturing, which specializes in access doors and roof flashings; Acudor Acorn Limited, Acorn s Canadian representatives and Acorn Powell Limited, Acorn s representatives in England. The company has also been awarded the American Society of Plumbing Engineer s Best Booth award. Established in 1954, Acorn Engineering Company has headquarters in City of Industry, Calif.