About Us

Defender One Security is a licensed, insured, and bonded security company. Our mission is to safeguard your most important assets – people. We work with corporations, medical institutions, universities, private schools, celebrities, cannabis stores, apartment complexes, event planners, and residential communities.

Our commitment to safety shines through in all aspects of our work, especially when it comes to ensuring the excellence of our service. Our team is highly trained and educated in cutting-edge security protocols, with both armed and unarmed guards undergoing comprehensive in-house orientation and state-of-the-art training in our Owings Mills headquarters.

Your safety is paramount and we’re here to protect our community. We tailor each security solution to meet the specific needs of our clients.

Accessibility is the key to Defender One’s distinctiveness in the industry. We’re available 24/7, seven days a week, to address your security concerns. Whether you’re a current client or not, please reach out to us anytime; your security is our priority.

Leadership Team

Jared Krieger
Director of Operations & Training
Matthew Goodman
Assistant Director of Operations
Jennifer Krieger
Director of Human Resources
Cynthia Cox

Human Resources Manager

GET IN TOUCH

We invite you to reach out and discover how Defender One Security can provide tailored security solutions to address your unique needs and challenges.

Call 443-834-6697 to speak with one of our experienced representatives. We welcome the opportunity to discuss your security requirements and offer our expert guidance.

Jon Krieger

Owner
Jon is the President and Founder of Defender One. Jon started Defender One in 2009, with the goal of bridging the gap between conventional security guards and law enforcement. Jon had a long and distinguished career in a large metropolitan police department for over 30 years, holding supervisory positions in several units, including patrol, internal affairs, traffic and community outreach. Jon has a Bachelor’s Degree in Criminal Justice from the University of Maryland, College Park. Outside of work, Jon spends his time spoiling his grand-dogs Fred and Barney, supporting the Ravens and Orioles, and watching his daughter play Division 1 Lacrosse.

Jared Krieger

Director of Operations & Training
Jared currently serves as the Director of Operations & Training at Defender One. In this role, Jared is responsible for the overall operations and training of Defender One and its staff. Jared currently holds a Bachelor’s Degree in Homeland Security & Counterterrorism. Jared is board certified in Security Management and Board certified as a Physical Security Processional by the American Society of Industrial Security. Jared is also an accredited Law Enforcement instructor in the following disciplines: Firearms, OC Spray, Expandable Baton, Handcuff, Taser, Defensive Tactics, and Force Science Analytics. Outside of work, Jared enjoys traveling and spending time with his girlfriend and three dogs.

Matthew Goodman

Assistant Director of Operations
Matt currently serves as Defender One’s Assistant Director of Operations. Matt is responsible for the day-to-day operations of Defender One and works closely with the Director of Operations & Training to implement goals and objectives for the company. As a nationally certified School Resource Officer and Force Science Analyst, Matt brings an interpersonal and holistic approach to the industry. He holds a Bachelor’s Degree in Criminal Justice from York College. Outside of work, Matt is an avid outdoorsmen, spending time perfecting his landscaping skills. Matt also enjoys quality time with his wife Ashley, and two cats, Ollie and Leo, as well as watching the Baltimore Orioles and Ravens.

Jennifer Krieger

Director of Human Resources
Jen currently serves as Defender One’s Director of Human Resources, managing our HR and back end finance teams. Jen has 30 years of experience in healthcare benefits administration, retirement benefits, financial planning and human resources. Jen holds a Bachelor’s Degree in Accounting from the University of Maryland, College Park and a Master’s Degree in Finance from Loyola University. Jen prioritizes an employee focused and driven company, with an emphasis on client and employee satisfaction. Outside of work, Jen enjoys running, watching her daughter play Division 1 Lacrosse, and playing with her grand-dogs.

Cynthia Cox

Human Resources Manager

With 21 years of management experience across various industries, including staffing, transportation, small business ownership, accounting, and operations, Cynthia brings a wealth of knowledge and a robust skill set to Defender One. Her diversified background has equipped her with a keen understanding of multiple business domains, making her an invaluable asset to the team.