Golden Star Iron Works

Founded in 1964, M.A.R. s Engineering Company is spread across an area of more than 14,000 square feet and provides engineering assistance services. It staffs over 35 employees and includes mills, drill presses, tappers and grinders. The company has automatic screw machines and engine, pneumatic and hand lathes. M.A.R. s Engineering Company also has a computer numerical control machining center. Additionally, the company includes surface, centerless and pedestal grinders. It features custoff and band saws, as well as micro sand blasters. The company also has a tool grinding room for cutting purposes. It serves the agriculture, communications, electronics, marine, medical, recreational and transportation industries. M.A.R. s Engineering Company is located in San Leandro, Calif.

Established in 1950 and incorporated in 1966, Humboldt Instrument Company Inc. has been one of the leading full-service machine shops in Northern California. Located in San Leandro, Calif., the firm specializes in the areas for mechanical assembly, welding, grinding and polishing. It serves various markets, including precision machine work, CNC (computer numerical control) milling/turning, prototype work, vacuum systems/electro, mechanical assembly, CAD(computer-aided design)/CAM (computer-aided manufacturing) and CMM (capability maturity model) inspection. Humboldt Instrument Company Inc. specialties include the fabrication of vacuum chambers, related components as well as the machining of castings and all types of ferrous/non-ferrous alloys.