Robert Zellhoefer

Jackson, Mich.-based Airmaster, a manufacturer of air circulation and ventilation fan solutions, announced Robert Zellhoefer as its director of HVAC sales.

Gary Wheeler

The New York office of HDR Engineering Inc. announced that Gary Wheeler will serve as Global Director of Interior Design and Workplace Strategy.

John Karn

Arup, an engineering and consulting firm based in London announced on Aug. 22 the promotion of John Karn to principal.

Michael Mordell

Michael Mordell has been appointed to the position of vice president of international operations at Universal Forest Products Inc. (UFPI).

Raouf S. Ghali

Raouf S. Ghali has been named president of Hill International, based in Philadelphia. Ghali has been Hill International’s chief operating officer (COO) since 2015.