Whelan Security
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Founded in 1949 as a simple security patrol company along the St. Louis riverfront, Whelan Security has enjoyed a rich heritage of service excellence rivaled by few in the contract security industry. While other security companies continue to merge, consolidate, or sell, Whelan is still owned by the same family and guided by the same business principles more than a half century after opening our doors. Today, headquartered in St. Louis, MO, Whelan Security ranks within the top one percent of all security companies in the United States and operates as the largest regional security provider in the Midwest and Central United States also offering coast to coast service through our national subsi...
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