Providing excellence in everything we do!

Rest assured, no matter which security service we provide, you are secure.

Excelsior Defense

Your Total Security Solution
Providing top security in Florida, Alabama, Georgia, South Carolina, Tennessee, Texas & Virginia.

Expertise based on experience!

Founded in 1994 by a former US Marine Embassy Security Officer, the company has developed an impeccable reputation for professionalism and excellence.

Excelsior Defense


To Excelsior Defense, Inc.
Your Total Security Solution!

Call today to schedule a meeting to receive a custom quote that is tailored to meet all of your security needs.

What We Do

Excelsior Defense, Inc. specializes in supplying uniformed security officers to protect the interests of state and federal governments, businesses, industries and even residential communities. We provide top security to the following states, Alabama, Florida, Georgia, South Carolina, Tennessee, Texas & Virginia

Who We Are

A group of over 250 guards that are highly trained with capabilities to protect everything from commercial and financial properties to residential properties.

Strong. Stable. Reliable

Providing top security in Florida and 6 other states. With over 20 year in business and over 250 guards that are highly trained, we take our business seriously and do not plan on changing any time soon.

Meet Our Management Team

Kristofor Halverson

President & Managing Director

Company Founder, Former Marine, Combat Veteran and Embassy Security Officer.
Trained in Terrorism and National Security Management, he has a unique 25 year background in security, leadership
and project management.

Litsa Halverson

Vice President

Essential in our strategic planning, including business development, organization and clarification of objectives, coordination of planning, and achieving acceptance and implementation of plans with our clients.

Jerry Hackney

Gainesville Operations Manager

12 years as a Law Enforcement Officer with combined experience as a Deputy Sheriff and City Police. He also has 10 years leadership experience in the private sector as a Project Manager. Jerry has a Bachelors Degree from Flagler College in Public Administration along with FBI leadership training. He served as Field Training Officer, Traffic Homicide Investigator and Watch Commander. He holds certifications in Counter Terrorism, Disaster Response School Terrorism Response and Incident Command.

Luis Rosario

Orlando Branch Manager

18 plus years private security experience with 8 years management and supervisory positions. Delegated authority and autonomy necessary to fulfill all managerial, administrative, operational and contract responsibilities required for the management of Excelsior security projects in the fulfillment of scope-of-work mandates, and in meeting Excelsior policy and procedures requirements.

Security Tips and Suggestions

Security Officers
Security Officers?

What would your perception of security officers be like if they saved the life of your child?

Stay Aware Kidnapping
Stay Aware of Your Surroundings

Never agree to be kidnapped. Drop the cars keys and run and scream for help.

Carjacking safety tips

Next time you go to a large shopping center sit in the parking lot for a few minutes and observe how easy it would be for a criminal predator to approach and attack you or your family. Shoppers often walk to and from their cars totally consumed by their thoughts and thinking about what they are going to do next. Next time, watch shoppers as they approach their cars fumbling for their keys. They will turn their backs and attention completely away from those nearby to load their shopping bags into the car, and get children and infants installed inside the vehicle. Most shopping center and parking lot abductions and carjackings occur precisely at this point. A little awareness (educated-paranoia) is healthy and can keep your family safe.


Contact Info


2660 5th Avenue North,
Saint Petersburg,
Florida 33713

  • 2660 5th Avenue North, Saint Petersburg, Florida 33713 800 2345-6789

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