ORANGE COUNTY

R.T. “Bob” Mayham recently joined Professional Accounts Management Inc. of Fullerton to handle the company’s marketing. The company provides accounts receivable management, including personal collection follow-up for medical practices. Mayham was a principal at MediComp Inc., a computer company serving physicians, until joining PAM earlier this month.

Stephen Henry was named vice president of the placement division of Financial Group, a Newport Beach real estate investment firm. Henry was recruited from the Robert E. Osborne Co., a residential development firm, where he was vice president in charge of construction.

H. J. Hill has been named vice president of sales and marketing at Doelz Networks Inc., an Irvine computer products maker. Hill, who had been a member of the company’s board of directors, replaces James Mongiello.

William Barkovitz has joined Triconex Corp. in Irvine in the new position of vice president of sales. In the post, Barkovitz will develop a national sales organization and handle sales of the company’s line of industrial control systems.