LAUREL, MD – July 10, 2006 – Greenhorne & O'Mara (G&O), engineering consulting firm, has been recognized by the Washington Business Journal for being among the largest engineering firms in the Metropolitan Washington, D.C. region. Rankings are based on the firms' 2005 metro area engineering billings, and G&O placed 14th in the region's top 25 firms.

G&O has provided consulting engineering services for such projects as Fed Ex Field in Prince George's County, MD; the U.S. Food and Drug Administration Campus Consolidation in White Oak, MD; the Maryland State Highway Administration's MD 32 Interchange near MD 198 at Fort Meade; and the World Trade Center Building Performance Assessment Team Study for the Federal Emergency Management Agency.

"We are delighted to be included in this prestigious list," commented John J. Healey, Ph.D., P.E., G&O's President and Chief Executive Officer. "It is gratifying because G&O was established in Maryland and 56 years later, our headquarters is still based here – making us a consistent presence in the Metro area. Nationwide, G&O is listed among the top 130 engineering firms in the U.S. by Engineering News Record. We are proud to contribute to the Washington, D.C. metropolitan region's continued growth and development."

Greenhorne & O'Mara is a national, full-service engineering consulting firm that has provided solutions in the areas of general civil, transportation, environmental, water resources, and hazard mitigation and security, for more than 56 years. With 15 offices located in Pennsylvania, Maryland, Virginia, West Virginia, North Carolina, Georgia, and Florida, G&O provides a broad range of services to private industry as well as federal, state, and local government clients.