Archangel Investigations and Protection Inc is a full service private investigation, security and personal protection company that offers expertise, professional and totally confidential services to attorneys, corporations, small businesses and private individuals. They provide training, manned guarding, professional fraud detection and claim mitigation services.

Cypress Private Security provides comprehensive security services for a complete range of quality clients, including public and private institutions, office and residential complexes, museums and campuses. They provide a full range of solutions including manned guarding (armed or unarmed uniformed officers), mobile patrols, loss prevention specialists and emergency response services.

Starnet Security Inc. upholds safety in the Bay Area as a top security guard company in San Francisco. They specialise in security guard services that San Francisco businesses can rely on, including event security and fire watch security. Their private security services cater to various needs, from corporate and construction site security to hotel and motel security.