LAUREL, MD – September 27, 2007 – The engineering consulting firm Greenhorne & O'Mara, Inc. (G&O), announces the appointment of Martin E. Marquez, P.E., as Director, Southeast Transportation Services. Working from the West Palm Beach (FL) office, Mr. Marquez is responsible for developing business and strategic plans, and associated budgets for sustaining and growing the Transportation Division in Southeast Florida. He will also serve as Senior Project Manager for the West Palm Beach office's transportation projects.

"We are very pleased to have Martin join our Transportation team," said Al Roth, P.E., Senior Vice President, Southeast Transportation. "His technical and design knowledge, and project management expertise will be a great asset to our public and private sector clients."

Mr. Marquez has more than 20 years of experience with design, marketing, and management of roadways, structures, traffic operations, and municipal projects. He has a B.S. in Civil Engineering from Florida International University, and is a Registered Professional Engineer (P.E.) in the state of Florida.

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 55 years. With 16 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.