Securing Facilities
Using Unique Solutions

Services We Offer

IP Video Surveillance

Complex Security designs, installs, and services all types of security systems. Complex Security specializes in Axis Communications Cameras, and is a gold partner and authorized reseller.

Camera Analytics

Complex Security can help derive exponential value from pre-existing surveillance systems by making video searchable, actionable and quantifiable. You can now view hours of video in just minutes and rapidly pinpoint people and objects of interest.

Access Control

Complex Security installs card access systems used to control entry into exterior doors of buildings. They may also be used to control access into certain areas located within the interior of buildings.

Mass Notification Systems

Complex Security offers comprehensive solutions for IP based mass notification systems. Each system is tailored towards the customers needs, ensuring safety during emergencies. We offer multiple products from various vendors ensuring the right solution.

Vertical Markets


Our company helps provide a safe learning environment for school districts across Wisconsin. We have been instrumental in helping school districts develop emergency response plans with use of mass notification and unified security solutions.


Our company can help you secure your commercial buildings. Utilizing commercial grade entry systems, camera systems, and visitor management we can make your facilities a secure and safe working environment.


Our company helps secure critical infrastructure across Wisconsin. Whether it is agriculture, energy, or transportation we offer unique solutions helping customers protect these assets from physical security threats. Ensuring they are prepared for any scenario.

About us

We are located in SE Wisconsin, serving Wisconsin, Illinois, and Indiana. Complex Security was founded in 2015 by John Kerlin and Charles Strand.

Contact Us

  • M-F 7:00AM-5:00PM
  • 24/7 Emergency Service Available
  • P: 262-207-4099

Our Locations

Milwaukee Office

S83W18396 Saturn Dr.

Muskego WI, 53150

Madison Office

4611 Dovetail Dr. Suite 1

Madison WI, 53074