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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 307,840 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 America307,840

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 States307,840
France73,350
Germany73,241
Italy48,699
China46,284
Japan38,844
Spain36,569
United Kingdom32,501

Trial sites

307,840 sites. Sites with a public page link to it on Pharma Observatory.

  • Pfizer Investigational Site Beachwood, Ohio, United States 14 trials
  • Pfizer Investigational Site Riverside, California, United States 14 trials
  • Pfizer Investigational Site Paramount, California, United States 14 trials
  • Pfizer Investigational Site Kirkland, Washington, United States 14 trials
  • Pfizer Investigational Site Milford, Massachusetts, United States 14 trials
  • Pfizer Investigational Site Longmont, Colorado, United States 14 trials
  • Pfizer Investigational Site Kissimmee, Florida, United States 14 trials
  • Pfizer Investigational Site Flowood, Mississippi, United States 14 trials
  • Pfizer Investigational Site Greenbrae, California, United States 14 trials
  • Pfizer Investigational Site Poughkeepsie, New York, United States 14 trials
  • Pfizer Investigational Site Peoria, Arizona, United States 14 trials
  • Pfizer Investigational Site Aventura, Florida, United States 14 trials
  • Pfizer Investigational Site Sellersville, Pennsylvania, United States 14 trials
  • Pfizer Investigational Site Vero Beach, Florida, United States 14 trials
  • Pfizer Investigational Site Salisbury, North Carolina, United States 14 trials
  • Pfizer Investigational Site Southaven, Mississippi, United States 14 trials
  • PharmQuest, LLC Greensboro, North Carolina, United States 14 trials
  • Pharmaceutical Research Associates, Inc., Lenexa, Kansas, United States 14 trials
  • Piedmont Research Partners, LLC Fort Mill, South Carolina, United States Ongoing trial 14 trials
  • Pillar Clinical Research Richardson, Texas, United States Ongoing trial 14 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