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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 307,307 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 America307,307

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 States307,307
France73,234
Germany73,217
Italy48,542
China46,028
Japan38,759
Spain36,468
United Kingdom32,428

Trial sites

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

  • Pfizer Investigational Site Chandler, Arizona, United States 20 trials
  • Pfizer Investigational Site Pensacola, Florida, United States 20 trials
  • Pfizer Investigational Site Henderson, Nevada, United States 20 trials
  • Pfizer Investigational Site Hot Springs, Arkansas, United States 20 trials
  • Pfizer Investigational Site Edina, Minnesota, United States 20 trials
  • Pfizer Investigational Site Rockford, Illinois, United States 20 trials
  • Physicians East Greenville, North Carolina, United States Ongoing trial 20 trials
  • Piedmont Healthcare Statesville, North Carolina, United States Ongoing trial 20 trials
  • Pima Heart and Vascular Tucson, Arizona, United States Ongoing trial 20 trials
  • Planned Parenthood League of Massachusetts Boston, Massachusetts, United States Ongoing trial 20 trials
  • Prairie Education & Research Cooperative Springfield, Illinois, United States Ongoing trial 20 trials
  • Precision Research Institute, LLC San Diego, California, United States 20 trials
  • Premier Psychiatric Research Institute, LLC Lincoln, Nebraska, United States 20 trials
  • ProCare Vision Center Granville, Ohio, United States Ongoing trial 20 trials
  • Prodromos Stem Cell Institute Naples, Florida, United States Ongoing trial 20 trials
  • RMH Regional Cancer Center Harrisonburg, Virginia, United States 20 trials
  • Radiant Research, Inc. Columbus, Ohio, United States 20 trials
  • Radiant Research, Inc. Chandler, Arizona, United States 20 trials
  • Radiation Medical Group, Inc. San Diego, California, United States 20 trials
  • Radiation Therapy Associates - Fort Myers Fort Myers, Florida, United States 20 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