Facebook-f Linkedin-in Google-plus-g
Fingerprint Appointment

Security Services

On Site Security

Our on-site security services refer to the measures and practices implemented to protect physical spaces, properties, and assets from unauthorized access, vandalism, theft, or other security threats. This type of security is primarily focused on safeguarding a specific location, such as a building, facility, or campus.

Learn More

Executive Protection

High-profile individuals, such as business leaders, celebrities, and sports personalities, hold significant value for the organizations they represent. Their public visibility exposes them, and their families, to potential threats. To ensure their safety, these VIPs require specialized and highly trained protection services.

Learn More

Specialized Security

Defender One Security works with medical institutions, private schools, daycare facilities, corporations, and residential communities to offer customized security solutions. Our security teams are well-versed in the latest security methodologies, guaranteeing that our clients receive the most effective protection possible. Specialized services may include tactical units, vehicle patrols, law enforcement personnel, and more.

Learn More

Private Investigation

Private investigation is an indispensable resource for providing vital information to support critical decisions, protect assets, and mitigate risks.

We offer private investigators to verify insurance claims, investigate employee misconduct, track spouses, investigate domestic violence situations, and more.

Learn More

Client Counseling

Drawing upon decades of expertise in security at Defender One, our team of dedicated board certified professionals are well-equipped to evaluate your existing security framework, pinpoint potential vulnerabilities, and take proactive measures to minimize security risks.

Learn More
Defender One Security is a distinguished provider of comprehensive security solutions throughout the Maryland region.
Quick Links
Other Links
Contact Details
Office Hours: Monday – Friday from 8:30 AM to 5:00 PM
Copyright © 2023 Defender One. All rights reserved.
Facebook Twitter Youtube

Defender One is a distinguished provider of comprehensive security solutions throughout the State of Maryland.

Quick Links
Industries
Contact Details

Copyright © 2024 Defender One. All rights reserved. Site design by Silesky Marketing.

Facebook Linkedin Google-plus-g

Walter Leslie Jr.

Operations Manager

Walter is an observant and vigilant, safety-driven security professional with 14+ years of leadership experience across commercial, residential, and corporate security sectors. Walter offers extensive expertise in developing and executing comprehensive physical security procedures and protocols. Specializing in risk assessments, he has successfully implemented mitigation strategies for clients, reducing potential security threats.

Outside of work, he is family-oriented and enjoys traveling with his wife Jackie, and their dog Aries. He is an avid sports enthusiast and loves the Washington Commanders and Washington Nationals.

Phone-alt Envelope Facebook

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.

Phone-alt Envelope Facebook Linkedin

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.
Phone-alt Envelope Facebook Linkedin

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.
Phone-alt Envelope Facebook Linkedin

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.
Phone-alt Envelope Facebook Linkedin

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.
Phone-alt Envelope Facebook Linkedin