Holtec Security International is a subsidiary of Holtec International and is collated with its parent company at the Krishna P. Singh Technology Campus located in Camden, New Jersey. Holtec Security International provides cybersecurity, network administration, technical support, as well as physical safety to communities, critical infrastructure, and industrial/corporate/governmental facilities.

With more than 300 employees and growing, former and current clients include the United States Department of Justice, several state Attorneys General, the National Football League, the National Basketball Association, Camden County Police Department, commercial entities, technology centers, industrial installations, and manufacturing plants. Holtec Security International works closely with Homeland Security, FBI, State and local law enforcement, and governmental authorities with the highly regulated protection of nuclear fuel at 5 decommissioned facilities. Holtec Security International is currently engaged with Holtec’s Small Modular Reactor (SMR) Division in designing the security basis for its SMR-300.