Trusted by residents & businesses all throughout the Chicagoland area. Hover over the sections below to learn more about our services. Want to talk about it?

  • Private Investigation

    When you need to know the truth, look no further than our licensed, professional team of private investigators. Throughout our years of dedicated experience...

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  • Infidelity Investigation

    No one likes to think about a spouse being unfaithful - but sometimes, the signs are too hard to ignore. Whether you need to know the truth...

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  • Workers Compensation Claims

    Each year employers lose billions of dollars paying out fraudulent workers compensation claims. As an honest employer you're entitled to the truth...

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  • Executive Protection

    Ultimate Security and Investigations of America has built a reputation for excellence that is recognized and respected throughout the U.S....

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  • Security Services

    USIA will provide you with the best Security Guards & Officers possible within the pay rates established. We will provide you the service at our lowest possible rate...

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  • Process Serving

    Legal disputes and proceedings are difficult as it is without having to involve yourself in every activity. When it comes to your document process serving needs, you can call us...

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Welcome To Ultimate Security Investigations of America

Ultimate Security and Investigations of America, is a full-service security and private detective firm serving the Chicago metro area that is Law Enforcement Owned. We specialize in a broad scope of investigative and security services. Our services include private investigations, private executive security, infidelity investigations, process serving, armed and unarmed security, as well as other security and private investigation related services.

Real-World Experience in All Types of Investigations

At USIA our staff has real-world hands on experience in all types of investigations and security situations.  Our staff has extensive experience in the law enforcement field and we understand the unique needs of our clients and make quality customer service an absolute must.

24/7 Service

We offer 24/7 service and the most competitive rates in the area.  Call us today for a free consultation on your case.

Why Choose Us?

  • Lowest Rates Available
  • Free Consultations
  • Confidentiality 100% Guaranteed
  • 24/7 Services
  • Fully Licensed and Insured
  • Flat Rate Fees Available
  • Former Law Enforcement Experience
  • Spanish Translator Available
  • High Standards of Physical Fitness

What We Do?

Every client has a different request, but all clients want real-world protection. Businesses and individuals throughout Illinois and beyond trust Ultimate Security's agents for safekeeping..

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Free Consultation

Call 1-800-783-9297 or click to speak with our detectives about your case.
Your confidentiality is 100% guaranteed.

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