O'Donnell & Naccarato, a structural engineering firm headquartered in Philadelphia, PA, has merged operations with Carmel, Indiana based structural engineering firm, McComas Engineering. Financial terms were not disclosed. With four offices in the Mid-Atlantic region, this merger strengthens O&N's geographic position and services on a national level. The addition of McComas increases the firm's core building design services by offering specialty engineering services for precast concrete, cold-formed-steel and other contractor services. McComas also provides specialized structural design to the aquatics industry for competition pools, dive towers and leisure swimming pools throughout the country. "This move to establish a position in the Midwest has been a strategic objective for some time and McComas was a natural fit. We were impressed by their technical capabilities, relationship-driven approach, potential for expansion and their inclusive, welcoming culture." Anthony Naccarato, President of O&N.