Chicago Security Guard Company Since 1975

Our Security Services

Our team members take pride in the longstanding relationships we have forged with our clients, and are dedicated to continuing to offer quality security services in a cost effective manner.

Residential Door Staff

Residential Gated
Community Security

Manufacturing
& Industrial

Logistics
& Distribution

Financial
Institutions

Education

Armed Security Officer

Law Enforcement

Mobile Patrol Services

Retail

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Chicago’s Premier Security Provider for Over 50 Years

A SECURITY MANAGEMENT TEAM YOU CAN COUNT ON

Our Team is comprised of security professionals who strive to meet and exceed our clients expectations.

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OUR MISSION

At Guardian Security Services, we measure our success by the satisfaction of our clients.

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CLIENT RETENTION & RELATIONSHIP FOCUSED

Guardian Security has developed long-lasting client relationships since 1975. We are dedicated to making our service to your location a cornerstone of our business.

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Trusted Security.
Exceptional Service.
Peace of Mind.

At Guardian Security Services, we go beyond presence we build trust. From luxury high-rises to corporate campuses, our highly trained officers deliver professionalism, consistency, and care. The result? Safer communities, satisfied residents, and a true partnership you can count on day and night.

Our client locations in Chicago vary, but no matter their location needs, if they are in the Chicagoland area, we can help serve them. Many of our clients are in notable locations like Bronzeville, Hyde Park, The Gold Coast, River North, The South Loop, and Streeterville.

Real Testimonial from a Plant Manager at a Fortune 500 Global Ingredient Solutions Provider.

Real Testimonial from a Property Manager at a Luxury Gated Residential Community

Real Testimonial from a Facilities Manager at a National Logistics Provider

Real Testimonial from a Property Manager at a Luxury High-rise Residential Location

26. February, 2026.

The team at Guardian is performing excellently from top to bottom. We have the right guys in the right places. David, is a pleasure to work with and contributes immensely to the team's performance. Whether it be for after-hours calls, odd requests, or even being willing to meet with us weekly. Not only do you make the security services here a comfortable and stress-free topic for Management, but our residential building would be far worse off if we had anyone else supervising our property or a different firm managing. I hope the building never has to see the day. Again, thank you for all that you do. It does not go unnoticed.

Sue P.

I am new to the Guardian Security experience. Being a Property Manager, we are often concerned about making the correct recommendations to our Boards. The staff that has been placed at my guardhouse has made me look like a hero in the eyes of the Board. It is always a pleasure to interact with the guards, as well as the office staff. Their customer service is stellar. Their professionalism is stupendous. I am looking forward to a long relationship. Should I ever pick up another gated property, you can be sure I will get Guardian aboard. Thank you for making my job easier.

Anton B.

I have had the opportunity to work with many of the larger nationwide security firms throughout my career and working with Guardian Security has been a breath of fresh air. I have been most impressed with the professionalism of the officers assigned to our facility.

Erica J.

I have had the pleasure of working with Guardian Security at three different properties. Their service is always superior. The staff at Guardian Security is always efficient and effective in every situation. I find the officers to be dependable and trustworthy.

Lisa R.

On behalf of myself and the community, I want to express my gratitude to you and our Guardian team. Guardian Security has been our 24/7 security provider since 2015, and I am heartened to say that switching firms have proven to be an excellent decision.

Denise B.

As a property management company, we are always looking for a sound relationship and exemplary service for our customers. We have found that with Guardian Security! Currently, the Guardian Team provides service for 5 gated communities in the western suburbs for the past seven plus years.

Leo A.

Guardian Security Services has partnered with our bank since 2009. I have had the personal pleasure of working with Guardian for the last five years as the bank’s head of security. Guardian’s team provides the best service and will always go above and beyond to make sure our security needs are met.

Angela H.

Guardian Security is the first security company I’ve worked with that gave me peace of mind. I don’t need to be in constant communication with them because the very few times there are challenges, they are handled swiftly and appropriately by their entire team; which helps us all sleep better at night.

Jeff

Guardian Security stands out above the rest. Coming from onsite union staff and from other third party security firms, I would use Guardian as my first choice at any building I manage in the future.

Denise W.

30. December, 2008.

Guardian has always been very helpful and very hands on with our site. It has been a pleasure to work with every department in this company.

Linda S.

15. October, 2007.

Best way to describe this organization: Service of Excellence! They continue to provide us with outstanding service for years.

Phil L.

6. May, 2005.

Guardian Security has been our Security Provider for more than eight years now and I must say that the security operation continues to improve and respond to the ever-changing environment.

Gene M.

4. April, 2003.

Guardian has served our homeowners association as their premiere security company for the last ten years. They have been far superior to our previous security company, and in our opinion, they are one of the best.

Mike T.

3. September, 2001.

For the past seven years, Guardian Security has been the exclusive provider of Security Services with the highest level of professional service.

Bob W.

25. January, 2000.

Our on-site Guardian employees always provide quality service and are very customer oriented. Their management team is very responsive to our needs and they always provide strong support.

More Than Just Guards.
We’re Your Security Partners.

More Than Just Guards.
We’re Your Security Partners.