
Cook (Chicago), Lake, McHenry, DuPage, Kane, Will, Kendall,Grundy, LaSalle, Kankakee,
| Logo | Type | Company | ★ Founders Award | Phone | County | ZIP | Verified | Available in |
|---|---|---|---|---|---|---|---|---|
![]() | ⚖️ PS & PI | The Wesley Group, Inc. | (202) 372-7466 | States of MARYLAND, VIRGINIA, DELAWARE, WASHINGTON D.C. | 20036 | See Details | IL | |
| ⚖️ PS & PI | Smokey Mountain Process | (773) 798-9361 | Cook, DuPage, Will, Kane | 60609 | See Details | IL | ||
![]() | ⚖️ PS & PI | A-1 Detective Agency, LLC | (224) 656-5399 | State of ILLINOIS | 60085 | See Details | IL | |
| ⚖️ PS & PI | Great Lakes Professional Investigations, LLC | (630) 394-2110 | DuPage, Kane, Kendall | 60540 | See Details | IL | ||
| ⚖️ PS & PI | Big River Investigations | (217) 228-9114 | IL: Adams, Brown, Pike, Schuyler | 62301 | See Details | IL | ||
| ⚖️ PS & PI | Hurst Investigation Services Inc | (618) 310-1500 | IL: St. Clair, Clinton, Bond, Marion | 62221 | See Details | IL | ||
| ⚖️ PS & PI | It's Your Serve Inc. | (312) 855-0303 | State of ILLINOIS | 60602 | See Details | IL | ||
![]() | ⚖️ PS & PI | The All-Investigations Group, PLLC | (847) 336-6101 | ILLINOIS: Cook, Lake, McHenry, Will | 60062 | See Details | IL | |
| ⚖️ PS & PI | Relionant Investigations & Security Services | (224) 304-0030 | Lake | 60085 | See Details | IL | ||
| ⚖️ PS & PI | Rockford Detective & Security Agency | (815) 282-2822 | Winnebago, Boone, McHenry, Ogle | 61107 | See Details | IL | ||
| ⚖️ PS & PI | Blue 22, LLC | (847) 888-4464 | Cook, DuPage, Kane, Lake | 60123 | See Details | IL | ||
![]() | ⚖️ PS & PI | Richart Detective Agency | (773) 645-7996 | Cook | 60638 | See Details | IL | |
![]() | ⚖️ PS & PI | Judicial Attorney Services, Inc. | (877) 659-3448 | State of ILLINOIS: DuPage, Kane, Cook, Lake | 60606 | See Details | IL | |
| ⚖️ PS & PI | Illinois Process Servers, LLC | (217) 241-1335 | Sangamon | 62712 | See Details | IL | ||
| ⚖️ PS & PI | One Source Process, Inc | (800) 668-5448 | MD: Montgomery, Prince George's, VA: Arlington, Fairfax | 20005 | See Details | IL | ||
| ⚖️ PS & PI | Kellerman Investigations, Ltd. | (888) 402-6662 | Madison, St. Clair, Southern ILLINOIS | 62034 | See Details | IL | ||
| ⚖️ PS & PI | Pride Eye Corp | (708) 754-7753 | Cook, Will | 60461 | See Details | IL | ||
![]() | ⚖️ PS & PI | United Processing, Inc. | (312) 629-0140 | States of ILLINOIS, WISCONSIN, INDIANA | 60654 | See Details | IL | |
![]() | ⚖️ PS & PI | VSI Process Service & Investigation, Inc. | (312) 493-4671 | State of ILLINIOS | 60501 | See Details | IL | |
| ⚖️ PS & PI | Chicagoland Detective Services | (773) 772-2651 | Cook, Kane, DuPage, Lake | 60641 | See Details | IL | ||
![]() | ⚖️ PS & PI | Process Service with a smile | 5737460574 | Cape Girardeau County, Scott County, New Madrid County, Perry County | 63763780 | See Details | IL, MO | |
![]() | ⚖️ PS & PI | Elite Process Serving & Investigations, Inc. | (630) 299-4600 | State of ILLINOIS | 60586 | See Details | IL | |
| ⚖️ PS & PI | C.I.S. Comprehensive Investigative Services | (800) 618-2155 | Cook, DuPage, Will, Lake | 60634 | See Details | IL | ||
| ⚖️ PS & PI | Diaz Office Corp | (331) 588-8959 | Cook, DuPage, Lake, Will | 60123 | See Details | IL | ||
![]() | ⚖️ PS & PI | Nationwide Investigations | (312) 361-3598 | Cook, Lake, DuPage, State of ILLINOIS | 60604 | See Details | IL | |
| ⚖️ PS & PI | American Attorney Services | (206) 718-1680 | Lake, Cook, McHenry, DuPage | 60015 | See Details | IL | ||
![]() | 📄 PS | Court Serve Pros | 314-607-0951 | St.Louis City, St.Louis County, Jefferson County. Will and have done further out county's if a specific job is needed. | 63010 | See Details | IL, MO | |
| ⚖️ PS & PI | Chicagoland Investigative Services | (800) 556-8289 | Will, Cook, Kankakee, DuPage | 60462 | See Details | IL | ||
| ⚖️ PS & PI | Advanced Investigative Services, Inc. | (217) 821-4868 | Effingham, Bond, Champaign, Clay | 62401 | See Details | IL | ||
| ⚖️ PS & PI | Foster Investigations, Ltd. | (309) 862-3473 | McLean, Central ILLINOIS | 61761 | See Details | IL | ||
![]() | ⚖️ PS & PI | Barrister Investigations & Filing Service, Inc. | (815) 205-8300 | State of ILLINOIS | 60432 | See Details | IL | |
| ⚖️ PS & PI | The Carter Corporation, Inc. | (202) 349-1696 | Washington, DC, States of MARYLAND, VIRGINIA | 20006 | See Details | IL | ||
| ⚖️ PS & PI | D&S Private Detective, Inc. | (309) 647-8560 | Schuyler, McDonough, Henderson, Warren | 61607 | See Details | IL | ||
![]() | ⚖️ PS & PI | Front Range Legal Process Service, LLC | (888) 387-3783 | State of ILLINOIS | 60606 | See Details | IL | |
![]() | ⚖️ PS & PI | Impact Investigations, Inc. | (847) 804-6946 | Chicago Metro Area, Cook, DuPage, Lake | 60559 | See Details | IL | |
| ⚖️ PS & PI | Serve It Legal, LLC | (312) 725-6323 | Cook, DuPage, Kendall, Will | 60618 | See Details | IL | ||
![]() | ⚖️ PS & PI | Rancilio Illinois, Inc. | (847) 380-8966 | Cook, DuPage, Kankakee, Kane | 60173 | See Details | IL | |
| ⚖️ PS & PI | Brian W. Cherpeske Private Detective | (815) 223-7360 | La Salle, Bureau, Putnam | 61301-11 | See Details | IL | ||
| ⚖️ PS & PI | Krimson Security & Fingerprinting, Inc. | (630) 822-2237 | Lake, Kane, Kendall, Will | 60559 | See Details | IL | ||
| ⚖️ PS & PI | Edward D. Sonne, Jr. & Associates | (708) 342-2430 | Cook, Will, Dupage, Kane | 60477 | See Details | IL | ||
| ⚖️ PS & PI | Diligent Detective Agency, Ltd. | (815) 694-3332 | Vermilion, Champaign, Kankakee, McLean | 60927 | See Details | IL | ||
| ⚖️ PS & PI | Greentree Legal, LLC | (888) 573-4168 | States of ILLINOIS, OHIO, INDIANA, KENTUCKY | 45206 | See Details | IL | ||
| ⚖️ PS & PI | Schneider, Mark R. | (815) 482-3085 | IL: Winnebago, Boone, McHenry, WI: Walworth | 61008 | See Details | IL | ||
![]() | ⚖️ PS & PI | NW Chicago Investigations, LLC | (847) 489-9111 | Cook, DuPage, Lake | 60068 | See Details | IL | |
![]() | ⚖️ PS & PI | Rancilio Illinois, Inc. | (847) 380-8966 | Cook, DuPage, Kankakee, Kane | 60173 | See Details | IL | |
| ⚖️ PS & PI | JMB Investigations | (618) 531-5030 | St. Clair, Madison | 62208 | See Details | IL | ||
| ⚖️ PS & PI | Legal Document Management Services, Inc. | (312) 726-0036 | States of ILLINOIS &, INDIANA | 60602 | See Details | IL | ||
| ⚖️ PS & PI | Durbin Investigations | (618) 267-0472 | Marion, Clay, Jefferson, Clinton | 62881 | See Details | IL | ||
| ⚖️ PS & PI | GTY Investigations | (888) 405-9794 | Williamson, franklin, Jackson, Saline | 62951 | See Details | IL | ||
![]() | ⚖️ PS & PI | Verify Investigations | (312) 204-7184 | Cook, Will, DuPage, Kane | 60608 | See Details | IL | |
![]() | ⚖️ PS & PI | Meador Investigations | (888) 688-9944 | Cass, Champaign, Christian, DeWitt | 62656 | See Details | IL | |
| ⚖️ PS & PI | La Salle Process Servers LP | (312) 263-0620 | Cook, Dupage, Grundy, Kane | 60602 | See Details | IL | ||
![]() | ⚖️ PS & PI | Windy City Process Serving Inc. | (312) 296-9506 | Cook, Dupage, Kane, Kendall | 60655 | See Details | IL | |
| ⚖️ PS & PI | Legal Serve, LLC | (630) 816-0898 | Du Page, Kane, Will, Kendall | 60189-52 | See Details | IL | ||
| ⚖️ PS & PI | SIR Investigations and Security, Inc | (618) 553-2505 | South Central Illinois, Southwestern Indiana | 62837 | See Details | IL | ||
| ⚖️ PS & PI | Bill Clutter Investigations, Inc. | (877) 528-5997 | Sangamon, Macon, Christian, Menard | 62701 | See Details | IL | ||
![]() | ⚖️ PS & PI | Mithra PLLC | (312) 600-8777 | Cook | 60616 | See Details | IL | |
| ⚖️ PS & PI | Tactical Services | (309) 662-0550 | Mclean, DeWitt, Macon, Logan | 61729 | See Details | IL | ||
| ⚖️ PS & PI | Lazzara Detective Services, Inc. | (815) 353-3050 | McHenry, Kane, Boone, Western Lake | 60039 | See Details | IL | ||
![]() | ⚖️ PS & PI | Nationwide Investigations | (312) 361-3598 | Cook, Lake, DuPage, State of ILLINOIS | 60604 | See Details | IL | |
![]() | ⚖️ PS & PI | Stewart & Associates Inc. | (800) 442-3807 | Stephenson, Winnebago, Ogle, Carroll | 61101-1 | See Details | IL | |
![]() | ⚖️ PS & PI | Action Legal Process | (888) 511-1919 | All of Springfield and St. Louis | 62704 | See Details | IL | |
| ⚖️ PS & PI | Pro Serve | (217) 341-2114 | Christian, Logan, Macon, Morgan | 62791 | See Details | IL | ||
| ⚖️ PS & PI | Carlson Investigations, Inc. | (847) 491-9182 | 60201 | See Details | IL | |||
![]() | ⚖️ PS & PI | Gazelle Process & Investigations, LLC | (847) 752-4450 | IL: McHenry, Boone, DeKalb, DuPage | 60012 | See Details | IL | |
![]() | ⚖️ PS & PI | Prism CourtServe | (708) 263-6077 | Sangamon | 62702 | See Details | IL | |
| ⚖️ PS & PI | Search Investigations, Inc. | (630) 890-1340 | Kane, DuPage, Cook, DeKalb | 60137 | See Details | IL | ||
![]() | ⚖️ PS & PI | Tri County Investigations Group Inc | (630) 655-1313 | Cook, DuPage, Kane, Will | 60527 | See Details | IL | |
| ⚖️ PS & PI | Dominion Investigations LLC | (618) 944-8189 | Williamson, Franklin, Jefferson, St. Clair | 62869 | See Details | IL | ||
| ⚖️ PS & PI | Comprehensive Investigative Services PLLC | (331) 431-1244 | Cook, DuPage, Kane, Will | 60169 | See Details | IL | ||
| ⚖️ PS & PI | A.A.A. Process Service, Inc. | 314-351-7979 | St. Louis City, St. Louis County, Jefferson County, St. Charles County | 63070 | See Details | IL, MO | ||
![]() | ⚖️ PS & PI | L4 Investigations | 1-708-929-8252 | Cook, Will, others as needed. | 60455 | See Details | IL |
Find answers to common questions about hiring a process server, serving legal documents, and process service requirements in Illinois.
No. Illinois does not have a statewide licensing requirement for process servers. However, the person serving process must meet the applicable legal requirements, and certain counties may require court appointment or authorization for private process servers.
Depending on the circumstances, process may be served by a sheriff or coroner, a licensed private detective, a registered employee of a detective agency, or a private individual who is at least 18 years old and appointed by the court. Special requirements may apply in counties such as Cook County.
Illinois process serving is primarily governed by Chapter 735 of the Illinois Compiled Statutes, particularly the Civil Procedure provisions in 735 ILCS 5. These laws address who may serve process, methods of service, service on businesses and organizations, and service outside Illinois.
Yes. Illinois law permits substituted service in certain circumstances. For example, documents may be left at the defendant's residence with a person aged 13 or older, followed by mailing a copy. Strict requirements apply, including proper documentation of the service.
Yes. Proper documentation of service is important in Illinois. The process server must accurately record relevant details about the service, including information such as the date, location, method of service, and person who received the documents.
Our mission is simple: to connect attorneys, law firms, corporations, and individuals with qualified local process servers who understand the urgency and importance of every serve.