Baton Rouge security company American Citadel Guard Inc. has been acquired by California-based Universal Protection Service, a division of Universal Services of America and one of the largest providers of security services in the U.S.

Terms of the deal were not disclosed.

American Citadel Guard’s clients include manufacturers, refineries, transport and shipping sites, hospitals and high-tech facilities in Louisiana, Georgia and Texas. The company has more than 1,000 employees in its service area, said Angela Burrell, a spokeswoman for Universal Services. American Citadel generates $25 million in annual revenue.

Universal Protection also acquired Cal Crim Inc., which is based in Cincinnati.

Employee-owned Cal Crim has served clients with armed/unarmed security professionals and patrol officers in Ohio, Indiana and Kentucky since 1913.

“American Citadel’s expertise and market experience is a natural complement to Universal’s wide range of industries serviced,” said Steve Jones, CEO of Universal Services of America. “Cal Crim also helps to expand our reach in niche areas and in the Midwest. Both companies are solid performers and that’s a great fit for Universal.”

Universal Services of America was founded in 1965 and is headquartered in Santa Ana, California. Universal has four divisions: Universal Protection Service, which offers security professionals for a range of commercial properties; Universal Building Maintenance,, which specializes in green cleaning services for commercial facilities; Universal Protection Security Systems, which provides full-service security systems; and Universal Fire/Life Safety Services, which offers emergency preparation.