A Phoenix electrical contractor has been bought by a Columbus company looking to expand into the Southwest. Ohio Transmission Corp. purchased Phoenix-based Keller Electrical Industries Inc. for an undisclosed price. The move gives the Columbus-based company offices in Phoenix and Tucson. Keller will keep its name and workforce, including Cody Eslick, its senior vice president of operations, and James Everson, senior vice president and chief financial officer. "Keller's capabilities and geographic...