For Attorneys & Plaintiffs Outside Illinois
Need to Serve Someone in Illinois? We've Got Chicagoland.
Your case is filed in another state, but the person you need to serve is here. Supreme Investigations is a licensed Illinois special process server — we locate and serve defendants and witnesses across Chicago, Cook County, and all of Chicagoland, and hand you an affidavit that holds up back home.
Choose your state
See how we help counsel in your state get service done in Illinois:
Serving Illinois defendants & witnesses for California attorneys.
How we help California counsel →Serving Illinois defendants & witnesses for Texas attorneys.
How we help Texas counsel →Serving Illinois defendants & witnesses for New York attorneys.
How we help New York counsel →Serving Illinois defendants & witnesses for Florida attorneys.
How we help Florida counsel →Serving Illinois defendants & witnesses for Indiana attorneys.
How we help Indiana counsel →Serving Illinois defendants & witnesses for Wisconsin attorneys.
How we help Wisconsin counsel →Serving Illinois defendants & witnesses for Michigan attorneys.
How we help Michigan counsel →Serving Illinois defendants & witnesses for New Jersey attorneys.
How we help New Jersey counsel →Don't see your state? We serve on behalf of counsel nationwide — call 224-366-9505 or email the documents.
What out-of-state counsel need to know
When the party is physically in Illinois, service follows Illinois law — not the rules of the state where your case is filed. That trips up a lot of out-of-state matters. A licensed Illinois server handles it correctly the first time:
- Summons & complaint: personal or proper abode service under 735 ILCS 5/2-203, by an authorized server under 735 ILCS 5/2-202.
- Out-of-state subpoenas: Illinois has adopted a streamlined interstate process (based on the Uniform Interstate Depositions and Discovery Act) to re-issue and serve a subpoena from your state.
- Moved or evasive parties: skip tracing develops a current Illinois address before we attempt service.
- Court-ready proof: notarized affidavits with attempt logs and GPS-verified details, formatted to file in your home court.
Send the documents, we'll handle Illinois
Email the papers and the Illinois address — same-day quote and turnaround on your matter.
General information for out-of-state counsel about service of process in Illinois. Not legal advice; Supreme Investigations is a licensed private detective agency, not a law firm. Interstate service and subpoena procedures change — confirm the current requirements for your matter with licensed counsel.