O'Brien & Gere is an employee-owned engineering and project delivery company with more than 850 employees. It provides a range of energy, environmental and water solutions. The company serves higher education, industrial and municipal clients. O'Brien & Gere also maintains over 20 locations throughout the United States. It offers conceptual design, fabrication, construction, systems integration and commissioning services. In addition, the company provides services for clients in the federal, municipal and industrial markets. O'Brien & Gere uses the Vaprotect vapor intrusion products. It operates in Virginia, Pennsylvania and Puerto Rico. The company offers services to the District of Columbia Water and Sewer Authority. O'Brien & Gere has undertaken projects for James Madison University and Morrisville State College.