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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 307,932 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 America307,932

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 States307,932
France73,380
Germany73,266
Italy48,719
China46,305
Japan38,861
Spain36,598
United Kingdom32,508

Trial sites

307,932 sites. Sites with a public page link to it on Pharma Observatory.

  • Pfizer Investigational Site Schaumburg, Illinois, United States 10 trials
  • Pfizer Investigational Site Stuart, Florida, United States 10 trials
  • Pfizer Investigational Site Everett, Washington, United States 10 trials
  • Pfizer Investigational Site Bethany, Oklahoma, United States 10 trials
  • Pharma Research International Inc Naples, Florida, United States 10 trials
  • Pharmacology Research Institute Riverside, California, United States 10 trials
  • Pharmaron CPC Baltimore, Maryland, United States 10 trials
  • Philadelphia Philadelphia, Pennsylvania, United States Ongoing trial 10 trials
  • Phoenix Medical Research, Inc. Prairie Village, Kansas, United States 10 trials
  • Physician Care Clinical Research Sarasota, Florida, United States 10 trials
  • Physician Research Collaboration Lincoln, Nebraska, United States Ongoing trial 10 trials
  • Physicians Clinic of Iowa Cedar Rapids, Iowa, United States Ongoing trial 10 trials
  • Physicians Protocol Greensboro, North Carolina, United States Ongoing trial 10 trials
  • Piedmont Hospital Research Institute Atlanta, Georgia, United States 10 trials
  • Pima Heart Tucson, Arizona, United States Ongoing trial 10 trials
  • Pines Care Research Center, LLC Pembroke Pines, Florida, United States Ongoing trial 10 trials
  • Pinnacle Health System Harrisburg, Pennsylvania, United States Ongoing trial 10 trials
  • Pioneer Clinical Research, LLC Bellevue, Nebraska, United States 10 trials
  • Pittsburgh CRS (1001) Pittsburgh, Pennsylvania, United States 10 trials
  • Pivotal Research Center Peoria, Arizona, United States 10 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