Louis Berger announces the retirement of board chair Dr. Ernest A. Portfors and the addition of three new board members: James G. Bach, Nick Ivanoff and Thomas G. Lewis. With these changes, the Louis Berger Board of Directors includes David Abrams, James G. Bach, Martha Clark Goss, Lawrie Haynes, Nick Ivanoff, Thomas G. Lewis, Nicholas J. Masucci, Donald Platner and Jim Stamatis.