Designers & Planners, Inc., a naval architecture and marine engineering firm with offices in Washington, D.C., and Galveston, Texas, is establishing a Philadelphia Area office. It will provide services to Philadelphia naval activities and other marine-associated organizations within this proximity. The office is located at 1030 North Kings Highway (N.J. Route 41), Cherry Hill, N.J. 08034; (609) 667-7005.

Fred Serim, president, announced the appointment of N. Anthony DiRenzo as office manager. In this capacity, he will report to vice president Chet Kizilkaya.

Prior to joining the firm, Mr. DiRenzo was employed at the Philadelphia Naval Shipyard and the Naval Ship Systems Engineering Station for a total of 33 years. He has wide experience in maintenance and repairs of equipment and operation of submarine and surface type ships.