Execs & Accounts: Publicis, Marchex, Local.com

Publicis named Nick Holzwarth SVP and group account director of UBS. He will join Don Blashford on the UBS account, who has been promoted to EVP, worldwide account director.

Marchex made several hires to its senior management team. Sloan Seymour, VP of Marchex Adhere, comes from Ziff Davis Enterprise/Media where he served as president and CEO. Ed O’Keefe, VP of performance marketplaces in the Digital Platform Group, was previously director of product management and innovation at R.H. Donnelley. Brooks McMahon, VP of partner development in the Digital Platform Group, previously worked at Getty Images. Leigh McMillan was promoted from his role as VP of marketing to SVP of marketing and communications.

Undertone Networks expanded its sales team in Chicago, Detroit, and San Francisco. In each city Undertone hired a director for its sales management team. Mark Ailsworth, president of the Chicago Interactive Marketing Association, will serve as director of sales in the Chicago office. He was previously at Pandora Media. Brad Fox will work as director of sales in the Detroit office, and was previously sales manager at AOL’s Advertising.com. John Yearout will serve as director of sales in San Francisco with responsibility for the Rocky Mountain region, Northern California, and the Pacific Northwest. Yearout previously managed the consumer electronics sales team at Vibrant Media.

Local.com named Peter Mathews VP of technology. Mathews was most recently VP of engineering at AGIS Network, a vertical search portal. Previously he led software development at Autobytel.