Supreme Investigations PLLC · Licensed Private Detective Agency · Chicago, Illinois
About Supreme Investigations
Supreme Investigations is a licensed Illinois private detective agency owned and operated by Robin Valenzuela, a Chicago-raised investigator with a criminal justice degree from North Park University (cum laude), 15 years of field experience, and over 27,000 documented surveillance hours across Chicagoland.
Licensed investigative authority: Supreme Investigations is licensed by the Illinois Department of Financial & Professional Regulation (IDFPR) under 225 ILCS 447 (Agency #117.001922, Detective #115.002750).
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Robin Valenzuela
Principal · Founder · Licensed Illinois Private Detective
Raised in Chicago’s Albany Park neighborhood, Robin Valenzuela founded Supreme Investigations on a simple principle: deliver discreet, court-ready investigative work for attorneys, businesses, and private clients across Chicagoland — and stay personally involved on every matter the agency takes on.
When you contact Supreme Investigations, you reach Robin directly. He confirms scope, plans the fieldwork, oversees execution, and signs off on the final evidence package delivered to your attorney, staying involved from intake through report.
With over 15 years of investigative experience and more than 27,000 documented field hours across Chicago and Chicagoland, Robin brings a calm, methodical approach to even the most sensitive matters — structured around the outcome you need, and delivered with the discretion your situation requires.
Background
From Albany Park to a state-licensed Illinois private detective agency.
Raised in Albany Park — one of Chicago’s most diverse working-class neighborhoods. The kind of place that teaches you how to read a room, talk to anyone, and notice what other people walk past.
Completed a Bachelor of Arts in Criminal Justice at North Park University — located in Albany Park, the same Chicago neighborhood where he was raised — graduating cum laude. Coursework grounded in evidence, procedure, constitutional limits, and the rules that govern admissibility in Illinois courts.
Robin spent over a decade on surveillance, covert documentation, process serving, and witness location across Chicago and Chicagoland, logging more than 27,000 hours of documented field time before founding the agency.
Robin established Supreme Investigations PLLC as a fully licensed Illinois private detective agency. The agency is owner-led from intake through final reporting, with the structure to scale up for multi-team operations when scope requires it.
What We Stand For
Here is how a licensed Chicago agency operates, and why it matters for your case.
How We Work Together
Every case stays clear, professional, and documented from first contact through final report.
Call, text, or submit a confidential intake. You speak directly with Robin to confirm scope and timing. Most cases receive a same-day response.
Objectives, legal constraints, deliverables, and pricing are confirmed in writing before any work begins, so there are no surprises on the invoice.
Covert surveillance, database research, process serving, or canvassing is carried out with discipline and documented in real time.
You receive a complete evidence package of timestamped video, photographs, and a written chronological report, formatted for your attorney and ready for court.
Credentials & Licensing
Supreme Investigations is licensed by the State of Illinois under 225 ILCS 447, verifiable at idfpr.illinois.gov.
What Clients Say
“I highly recommend Robin for serving process. I had a high-profile defendant with security who tried to scare him off, but Robin did not budge. He staked out the premises until the defendant had to capitulate. Very professional and committed to getting the job done.”
“Supreme Investigations was able to gather numerous days of footage of my partner driving while intoxicated to and from my child’s practice. They even attempted police intervention on my behalf to make sure my child got home safe.”
“Robin was AMAZING! Outstanding responsiveness, pricing, and professionalism from start to finish. Most of our cases were very last minute and he delivered every time.”
Frequently Asked Questions
Here are answers to common questions about working with Supreme Investigations.
Who handles my case?
Robin Valenzuela is personally involved in every case Supreme Investigations accepts — confirming scope at intake, directing the fieldwork, reviewing documentation, and signing off on the final report. Your primary point of contact from intake through delivery is the licensed investigator overseeing your matter.
How long have you been licensed in Illinois?
Supreme Investigations PLLC operates under Illinois Private Detective Agency License #117.001922 and Detective License #115.002750, both issued by the Illinois Department of Financial and Professional Regulation (IDFPR) under 225 ILCS 447. Both licenses are publicly verifiable at idfpr.illinois.gov. Robin’s field experience predates the agency itself — 15+ years and 27,000+ documented surveillance hours.
What size cases do you handle?
Supreme Investigations handles single-investigator assignments — surveillance, process serving, background research, family-law fieldwork — as well as larger multi-team operations involving licensed Illinois investigators coordinated under one scope and chain-of-custody. Case size and team structure are confirmed in writing before any work begins.
Do you take cases outside Chicago?
Our primary service area is Chicago, Cook County, DuPage County, and greater Chicagoland — including Naperville, Schaumburg, Oak Park, Evanston, Orland Park, Tinley Park, Bolingbrook, Wheaton, and Aurora. Out-of-area Illinois assignments are taken by scope. Bilingual service is available in English and Spanish.
Are your reports admissible in court?
Reports are structured for legal use — timestamped video and photographs, written chronological activity logs, and field notes formatted for attorney review and Cook County family court, civil litigation, and insurance defense proceedings. Robin is available for depositions and court testimony when needed.
Ready to Discuss Your Case?
Call, text, or submit a confidential intake — you’ll hear directly from Robin. He is available seven days a week and responds the same day on most matters.