About Us

DTSV is part of the prime contractor (LDRM) supporting the Department of State’s National Visa Center (NVC) in Portsmouth, NH. Since 1994, the NVC has carried out a critical part of the immigrant visa process, serving as the link between U.S Department of Homeland Services’ U.S. Citizenship and Immigration Services (USCIS) and the U.S. Department of State. Once USCIS approves an immigrant visa petition, NVC handles key visa pre-processing steps to prepare applications for the final visa interviews conducted at U.S. embassies and consulates abroad. Through this important work, NVC facilitates legal immigration while protecting U.S. national security.