Effective Nov. 1, the D.Z. Cook Co. will represent Eaton’s product portfolio for B-Line, Bussmann, Crouse-Hinds Commercial and Wiring Device divisions in northern California and northern Nevada. Founded in 1967 by David Cook in San Francisco, the company his now based across San Francisco Bay in Hayward, CA. In addition to its headquarters office there, the company operates a 25,000-sq-ft warehouse.