NEW YORK, NY — Parsons Brinckerhoff (PB) has announced the appointment of George J. Pierson as the firm’s Chief Executive Officer effective January 1, 2010. Mr. Pierson, currently president and COO of the firm’s Americas division, succeeds Keith J. Hawksworth, who becomes chairman. Mr. Pierson, who will continue as president and COO of PB’s Americas division, assumes the management of a professional services company with 15,000 employees in 150 offices worldwide and 2009 revenues of $2.1 billion. Parsons Brinckerhoff was acquired by Balfour Beatty, an international engineering, construction, professional services and investment group, in October, 2009 and is now a wholly-owned subsidiary of Balfour Beatty.  Full article in