David Olinger Asphalt Paving and Seal Coating, 11 E Trenton St, Baltimore, MD 21202, US

Operational since 1944, Allied Contractors Inc. is a construction company specialized in commercial, industrial and public works contracts. Based in Baltimore, Md., the firm has been involved in variety of projects, including bridges, schools, water treatment plants, sewage treatment plants, pumping stations and dams to name a few. Additionally, the projects include highways, retaining walls, utilities, underpasses and all types of commercial buildings. Allied Contractors Inc. offers metal/wood fabrication abilities, such as welders, presses, drill presses and band saws. The firm is a member of the Associated Builders and Contractors, Inc., the Engineering Society of Baltimore and the Society of American Military Engineers.