US Defense Investigative Service

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Welcome to US Defense Investigative Service, your go-to destination for quality services in Oklahoma. Located at 2778 Ringgold Rd, Fort Sill, our establishment provides top-notch Federal Government-National Security services to meet your needs. We are conveniently situated in Oklahoma, with the postal code 73503. For more information or to inquire about our services, please call us at (580) 442-2508. Our website offers further details about our offerings, working hours, and location. You can also find directions, view our map, and explore additional information to help you connect with us easily. Discover why US Defense Investigative Service is a trusted name in Oklahoma and experience our commitment to providing excellent service.