Specialties
Our company is Maryland licensed and insured in Private Investigations and Armed/Unarmed Security Services. Interested in learning more, check out our website or contact us!
History
Established in 2019.
Discreet Security Services and Investigations, LLC (DSSI) was founded with a clear mission: to raise the standard of private security and investigations by delivering professional, reliable, and accountable service. What began as a small operation in Southern Maryland quickly grew into a respected and recognized firm serving clients across the Mid-Atlantic region.
Built by seasoned professionals with extensive backgrounds in law enforcement, fire/rescue, military, and executive protection, DSSI was created to fill a critical gap in the industry—providing security services that are both tactically sound and community-focused. From day one, we’ve operated on core principles of integrity, discretion, and results.
DSSI remains committed to excellence, evolving with modern threats while holding firm to the values that launched our success. We’re not just a security company—we’re a trusted partner in your safety, protection, and peace of mind.
Meet the Business Owner: Joshua S.
Joshua R. Sullivan is a seasoned public safety and security professional with over 23 years of experience in fire/rescue, law enforcement, and private security. As the Managing Partner of Discreet Security Services and Investigations, LLC, he leads with integrity, accountability, and real-world expertise. Joshua is a certified instructor, licensed investigator, and nationally recognized expert in executive protection and workplace violence prevention. His mission is to raise the standard of service across the security and investigations industry—one client, one case, and one course at a time.