Our portfolio of services is provided by a team of skilled and qualified experts, who have in-depth knowledge of security principles and processes, a comprehensive understanding of your vertical, experience in developing intricate projects, and adherence to Security 101’s core values of fanatical customer service and integrity.



Protecting People, Property & Profits

Security 101® is nationally-recognized as a leader in the security industry and viewed as one of the fastest growing commercial integrators in the US. From system design, engineering, and installation — to servicing electronic security systems, Security 101 offers a full range of services to our clients. Our business systems, specialized business operations software, and extensive training allow us to deliver the highest quality security systems and positive customer experiences.

As a true systems integrator, Security 101 is the only call you’ll need to make.

“Complete” design & engineering

Intercom & tele-entry systems

Custom programming

Mass notification systems

Project management

Wireless solutions

Visitor management systems

Access control systems

Video management systems

Intrusion detection systems

Unique software solutions for market-specific security challenges

Security system integration (video, access control & intrusion detection)

Extensive Service Portfolio

Security Reimagined

A comprehensive, purpose-built security environment is essential for businesses of any size to thrive. By partnering with Security 101, we can create an intelligent and integrated system that incorporates advanced video, access control, alarm monitoring, and visitor management solutions to help you maximize safety, efficiency, and productivity and detect and mitigate threats on time. 

Our National
Strategic Partners

Our Team


Chicago, IL (North Shore) - Our local team is comprised of seasoned security professionals who are ready to handle any size commercial electronic security systems project or service needs you may have. At Security 101 our expansive network of industry talent is deep — and our unique business model allows for every team member to stay connected. Here are a few key TEAM101 members in your local area. Get connected, follow us on Linkedin®, and join the conversation. Our dedication to security excellence is second-to-none and we are ready to start earning your trust today.


David Ritland


David, a native of Iowa and a graduate of Iowa State University, started his Electrical Engineering career with General Motors in Saginaw, Michigan. After several years of designing control systems for industrial automation, he moved to Chicago with his family to attend Northwestern University and to obtain an MBA/MEM. He has held senior management positions in a variety of industries that include automotive components, high voltage switchgear, construction equipment, electrical connectors and commercial fitness equipment. Most recently Mr. Ritland was president of The Sentral Group, a large contract manufacturer of electrical wire harnesses. For more than 18 years, David has led and developed sales and distribution channels that successfully navigated the technical sale process while satisfying customer demands. Moreover, his vast knowledge in the design and implementation of advanced vision systems, robotic integration, cell controllers will enable him to effortlessly make the transition to the security industry.

CNS-Marie-Ritland-headshot-2022-400Marie Ritland
Owner/Business Development

Marie Ritland is Owner (51%) of Security 101 - Chicago North, a woman-owned business. Marie gets involved with all aspects of the business and focuses on Business Development. After completing a Bachelor of Science degree in Mechanical Engineering at Purdue University College of Engineering, she continued her education and achieved a master's degree in business administration at the University of Chicago Booth School of business. Marie has over 35 years of professional sales leadership experience with companies such as General Motors, Mercury Products, Mubea and Crenlo.


Stay informed!
Discover something new.

Find informative articles relevant to your location and read about local security news, announcements, updates, and local security events that matter to you and your business.

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Security 101® Careers

Chicago (North Shore)

Being a part of TEAM101 has a special meaning to our dedicated personnel. At Security 101, we are continuously seeking qualified, highly-motivated individuals who demonstrate our guiding principles of fanatical customer service, integrity, and fun. Grow with us and thrive within an organization dedicated to excellence.

We are actively seeking top talent for the following position(s):

Account Executive

Security 101 – Chicago-North is now recruiting an Account Executive that can identify, qualify, and develop new customer opportunities by creating market awareness of Security 101 products and services. As an Outside Sales Representative in a B2B sales role, the ideal candidate will be actively seeking new business and building relationships with prospects while maintaining relationships and connections with their existing clients.

Chicago North

Lead Technician

Security 101 – Chicago-North is now recruiting a Lead Commercial Security Technician that has experience installing programming and servicing commercial electronic security devices primarily CCTV, Access Control, IP Cameras, Intrusion Detection, Video Analytics, IP network systems and overall security systems.

Chicago North

Lets work together!

Join us on our gratifying journey of service, innovation, and expansion. Explore our fulfilling career opportunities and take your calling to the next level.