Integrity Security Services

Integrity Security Services is a Philadelphia, PA–based private security firm serving clients across Pennsylvania and New Jersey. The company provides executive protection, residential and estate security, corporate security, film and production security, hospitality security, special event coverage with active‑shooter response capability, K‑9 explosives and narcotics detection, and domestic and international travel security.

Teams are composed exclusively of active and recently retired law enforcement officers, with many members also having served in the U.S. military. Operations follow an intelligence‑driven approach that includes advance work, site reconnaissance, and protective intelligence, with personnel authorized to carry nationwide under HR218. The firm coordinates with trusted technology partners for camera and alarm integrations to support layered protection.

Services include close protection, secure movement planning, and protective driving; residential details with armed stationary coverage and 24/7 or overnight presence; corporate solutions such as lobby and concierge coverage, access control, visitor management, mobile patrol, and after‑hours protection; and production set security including perimeter control, crowd management, equipment and base camp protection, and overnight watches. Coverage spans the Philadelphia region, including Jewelers’ Row, Rittenhouse Square, the Main Line, and King of Prussia, as well as New Jersey communities such as Princeton and Alpine.

Founded and led by CEO John Krewer, a 16‑year Philadelphia Police Department veteran and former FBI Task Force Officer, Integrity Security Services emphasizes direct communication with leadership, accountability, and consistent operational standards. The firm maintains offices in Philadelphia, PA, and Englewood Cliffs, NJ.