WASHINGTON--(BUSINESS WIRE)--Mid-Atlantic Bio today announced nine later-stage growth companies and 15 emerging companies, which will present before an audience of life science investors and industry professionals at the 2009 Mid-Atlantic Bio Conference, November 4 through 6, held in Washington, D.C., at the Washington, DC Convention Center. The Conference is hosted by the region’s most influential life science and investor associations, the Mid-Atlantic Venture Association (MAVA), the MdBio Division of the Tech Council of Maryland, and the Virginia Biotechnology Association (VaBIO), that are dedicated to promoting the biotechnology industry in the Mid-Atlantic region.