Services Here at Citadel Private Security we provide an array of security guard services to the Bay Area, Sacramento, and Los Angeles. We value your needs and won’t rest to make sure they are all met. Citadel Private Security is fully insured, equipped and licensed with the BSIS so be assured. Our protective guards will maintain protection of you, your properties, your organization and more, fully tailored to your request. Our services include Patrol Services, Protective Guards who will strive for safety. We go above and beyond to ensure satisfaction of our clients.