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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 307,017 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 America307,017

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 States307,017
Germany73,166
France73,153
Italy48,417
China45,895
Japan38,740
Spain36,429
United Kingdom32,402

Trial sites

307,017 sites. Sites with a public page link to it on Pharma Observatory.

  • Wenatchee valley Hospital & Clinics, Clinical research department Wenatchee, Washington, United States 1 trial
  • Wendell Johnson Center, University of Iowa Iowa City, Iowa, United States 1 trial
  • Wendell Johnson Speech and Hearing Center Iowa City, Iowa, United States Ongoing trial 1 trial
  • Wendell Phillips Academy High School Chicago, Illinois, United States 1 trial
  • Wendy McFalda, DO Clarkston, Michigan, United States 1 trial
  • Wendy Sadoff MD Dermatology PC Farmington Hills, Michigan, United States 1 trial
  • Wenger Orthodontics Mayfield Heights, Ohio, United States 1 trial
  • Wentachee Valley Hospital Wenatchee, Washington, United States 1 trial
  • Wentworth Health Partners Coastal Neurology Services Dover, New Hampshire, United States 1 trial
  • Werblin Rec Center Piscataway, New Jersey, United States Ongoing trial 1 trial
  • Werheim Cancer Institute Miami, Florida, United States Ongoing trial 1 trial
  • Werner Optometry San Diego, California, United States 1 trial
  • Werner Optometry Cajon, California, United States 1 trial
  • Werner, Murdock & Francis, PA, Urology Associates Greenbelt, Maryland, United States 1 trial
  • Werner-Francis Urology Associates, LLC Greenbelt, Maryland, United States 1 trial
  • Wertz Clinical Cancer Center (Wayne State University) Detroit, Michigan, United States 1 trial
  • Weslaco Advanced Imaging Weslaco, Texas, United States 1 trial
  • Wesley Acres Des Moines, Iowa, United States 1 trial
  • Wesley Chapel Internal Medicine & Pediatrics PA Wesley Chapel, Florida, United States 1 trial
  • Wesley Education Center for Children and Families Cincinnati, Ohio, United States Ongoing trial 1 trial

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