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Hall Investigations is a Bel Air, MD-based company in the Business Services sector.
Douglas Resources is a Suitland, MD-based company in the Business Services sector.
Canal Alarm Devices is a New York, NY-based company in the Business Services sector.
Mcdonnell Consulting Group is a Alexandria, VA-based company in the Business Services sector.
Industrial Security Service, a leading provider of quality security guards, is partnering with SACS Consulting and Investigative Services, Inc. to offer a number of complementary services to help protect their clients against issues faced in the workplace