At Due Diligence Security, we specialize in proactive solutions for real-world threats. Veteran-owned and built on over 17 years of operational experience, we deliver high-impact training and assessments that empower individuals and organizations to stay safe, stay ready, and stay in control.

Welcome to Due Diligence

Security Starts with Preparation

How do we train you to be safe and secure?

Through expert-led online courses that combine real-world tactics with practical tools you can use immediately—anytime, anywhere.

Due Diligence Security Institute

Prepare smarter, train better, and stay ahead of the threat.

DDSI is an elite online training platform designed to equip individuals, schools, businesses, and organizations with practical, no-nonsense security education. Built by veterans with real-world experience, our institute offers flexible, self-paced courses that transform uncertainty into confidence and complacency into readiness.

From active shooter response and verbal de-escalation to situational awareness and personal protection strategies, DDSI delivers high-impact training that empowers you to take control of your safety—wherever you are, on your own time.

Whether you're a teacher, leader, parent, or protector, this is your first step toward becoming the most prepared person in the room.

DDSI: Start Learning