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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 307,205 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 America307,205

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 States307,205
France73,197
Germany73,176
Italy48,496
China45,975
Japan38,756
Spain36,445
United Kingdom32,416

Trial sites

307,205 sites. Sites with a public page link to it on Pharma Observatory.

  • Professional Research Network of Kansas, LLC Wichita, Kansas, United States 29 trials
  • Providence Cancer Center Portland, Oregon, United States Ongoing trial 29 trials
  • Pulmonary Associates Phoenix, Arizona, United States 29 trials
  • Pulmonary Associates of Richmond, Inc. Richmond, Virginia, United States Ongoing trial 29 trials
  • Radiant Research, Inc. San Antonio, Texas, United States 29 trials
  • Regional Urology Shreveport, Louisiana, United States Ongoing trial 29 trials
  • Research Across America Plano, Texas, United States 29 trials
  • Research Site New Windsor, New York, United States Ongoing trial 29 trials
  • Research Site Voorhees Township, New Jersey, United States Ongoing trial 29 trials
  • Research Site Pasadena, California, United States 29 trials
  • Research Site Park Ridge, Illinois, United States Ongoing trial 29 trials
  • Research Site Tempe, Arizona, United States Ongoing trial 29 trials
  • Research Site Morristown, New Jersey, United States Ongoing trial 29 trials
  • Research Site Bridgeport, Connecticut, United States Ongoing trial 29 trials
  • Research Site Silver Spring, Maryland, United States Ongoing trial 29 trials
  • Research Site Tomball, Texas, United States Ongoing trial 29 trials
  • Research Site Concord, California, United States Ongoing trial 29 trials
  • Research Strategies of Memphis, LLC Memphis, Tennessee, United States 29 trials
  • Rocky Mountain Cancer Centers Lone Tree, Colorado, United States Ongoing trial 29 trials
  • Roswell Park Cancer Center Buffalo, New York, United States Ongoing trial 29 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