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Clinical research

Clinical trial sites in the United States

Clinical trial sites: one pin for each physical site that hosts trials, placed from the address on the trial registration.

  • Trial site
  • Group of pins (click to zoom)

Showing the 40,000 busiest of 307,818 located sites. The map holds only the first 40,000, so narrow the filters to see the rest.

Each pin is one trial site, placed on the map from the address on the trial registration, so it shows part of where trials are run, not all of it. A site with no located address has no pin. A site with a public page on Pharma Observatory links to it; other sites show name, place and trial count only.

Looking for contract research suppliers and CROs? Visit Contract Research Map

Looking to track new and ongoing clinical trials? Visit Trial Insights

Filters: Country: United States Clear all

Trial sites by region

Select a bar to filter by region.

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Trial sites by region
CategoryTrial sites
North America307,818

Top countries

Country of the site's address. Select a bar to filter.

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Bar colour shows the country's region, as in the chart by region.

Trial sites by country
CategoryTrial sites
United States307,818
France73,311
Germany73,247
Italy48,647
China46,227
Japan38,811
Spain36,541
United Kingdom32,473

Trial sites

307,818 sites. Sites with a public page link to it on Pharma Observatory.

  • Clayton Medical Research St Louis, Missouri, United States 15 trials
  • Clinical Pharmacology of Miami Hialeah, Florida, United States 15 trials
  • Clinical Research Associates of Central PA, LLC DuBois, Pennsylvania, United States Ongoing trial 15 trials
  • Clinical Research Institute Wichita, Kansas, United States 15 trials
  • Clinical Research Site Phoenix, Arizona, United States Ongoing trial 15 trials
  • Clinical Research Site Chicago, Illinois, United States Ongoing trial 15 trials
  • Clinical Research Site Little Rock, Arkansas, United States Ongoing trial 15 trials
  • Clinical Research of Brandon LLC Brandon, Florida, United States Ongoing trial 15 trials
  • Clinical Site Boston, Massachusetts, United States Ongoing trial 15 trials
  • Clinical Site New York, New York, United States Ongoing trial 15 trials
  • Clinical Trial Site Salt Lake City, Utah, United States Ongoing trial 15 trials
  • Clinical Trial Site Norfolk, Virginia, United States Ongoing trial 15 trials
  • Clinical Trial Site Jacksonville, Florida, United States Ongoing trial 15 trials
  • Clinimark Louisville, Colorado, United States 15 trials
  • Coeur D'Alene Arthritis Clinic Coeur d'Alene, Idaho, United States 15 trials
  • Collaborative Neuroscience Research, LLC Garden Grove, California, United States Ongoing trial 15 trials
  • Colorado Retina Associates Golden, Colorado, United States 15 trials
  • Columbia Basin Hematology and Oncology Kennewick, Washington, United States 15 trials
  • Columbia Saint Mary's Water Tower Medical Commons Milwaukee, Wisconsin, United States Ongoing trial 15 trials
  • Columbus NCORP Columbus, Ohio, United States Ongoing trial 15 trials

Explore the data behind the map on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.

Visit Pharma Observatory