#1Abilitylab
Based in Chicago, IL
Clinical Research Sites in Cook County, IL
The top-ranked clinical research sites serving Cook County, IL are Abilitylab, Accellacare of Duly Health and Care and Access Community Health Network. We list 524 clinical research sites serving Cook County, IL. 30 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical Research Sites serving Cook County, IL. 524 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical research sites for Cook County
#2Accellacare of Duly Health and Care
Based in Oak Lawn, IL#3Access Community Health Network
Based in Chicago, IL#4Advanced Quality Medical Research
Based in Orland Park, IL#5Advocate Aurora Health
Based in Park Ridge, IL#6Advocate Aurora Research Institute
Based in Oak Lawn, IL#7Advocate Aurora Research Institute
Based in Park Ridge, IL#8Advocate Children's Hospital
Based in Oak Lawn, IL#9Advocate Children's Hospital
Based in Park Ridge, IL#10Advocate Children's Hospital-Oak Lawn
Based in Oak Lawn, IL
20 more providers serving this area
- Advocate Children's Hospital-Park Ridge, Park Ridge, IL
- Advocate Christ Medical Center, Oak Lawn, IL
- Advocate Christ Medical Center Emergency Department (ACMC ED), Oak Lawn, IL
- Advocate Good Shepherd Hospital, Barrington Hills, IL
- Advocate Health, Park Ridge, IL
- Advocate High Tech Medical Park, Palos Heights, IL
- Advocate Illinois Masonic Medical Center, Chicago, IL
- Advocate Lutheran General Childrens Hospital, Park Ridge, IL
- Advocate Lutheran General Hospital, Park Ridge, IL
- Advocate Medical Group Adult Down Syndrome Center, Park Ridge, IL
- Advocate Medical Group - Park Ridge, Luther Lane - Oncology, Park Ridge, IL
- Advocate Outpatient Center - Oak Lawn, Oak Lawn, IL
- Advocate South Suburban Hospital, Hazel Crest, IL
- Affiliated Oncologists, Chicago Ridge, IL
- Alexian Brothers Health System, IL
- Alexian Brothers Medical Center, IL
- Alliance for Clinical Trials in Oncology, Chicago, IL
- Alliance for Multispecialty Research, LLC, Niles, IL
- Alliance for Multispecialty Research LLC - Park Ridge, Park Ridge, IL
- AMITA Health Adventist Medical Center, Countryside, IL
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Frequently asked questions
How many clinical research sites serve Cook County?
We list 524 clinical research sites serving Cook County, IL: 373 based there and 151 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Cook County?
The top-ranked clinical research sites serving Cook County, IL are Abilitylab, Accellacare of Duly Health and Care, Access Community Health Network, Advanced Quality Medical Research and Advocate Aurora Health. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Cook County are verified against official records?
10 of the top 10 match an active official record: Abilitylab (ClinicalTrials.gov), Accellacare of Duly Health and Care (ClinicalTrials.gov), Access Community Health Network (ClinicalTrials.gov), Advanced Quality Medical Research (ClinicalTrials.gov) and Advocate Aurora Health (ClinicalTrials.gov), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
How do sponsors judge a research site?
Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Cities in Cook County
Communities served
Glenview, Park Ridge, Streamwood, Wheeling, Calumet City, Northbrook, Elk Grove Village, Niles, Burbank, Lansing, Wilmette, Oak Forest, Chicago Heights, Morton Grove, Melrose Park, Rolling Meadows, Elmwood Park, Maywood, Blue Island, Park Forest, South Holland, Dolton, Harvey, Evergreen Park, Brookfield, Homewood, Matteson, Alsip, Lemont, Bellwood, Franklin Park, Palos Hills, Bridgeview, Westchester, Country Club Hills, La Grange, Prospect Heights, Norridge, Hickory Hills, Chicago Ridge, Midlothian, Forest Park, Western Springs, La Grange Park, Lincolnwood, Hazel Crest, Richton Park, Winnetka, Northlake, Justice, Palos Heights, River Forest, Schiller Park, Markham, Summit, Worth, Barrington, Crestwood, Lyons, River Grove