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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.

  • Pacific Oaks Research Beverly Hills, California, United States 11 trials
  • Pacific Sports and Spine Eugene, Oregon, United States Ongoing trial 11 trials
  • Paddington Testing Company Philadelphia, Pennsylvania, United States Ongoing trial 11 trials
  • Palm Harbor Medical Associates Palm Harbor, Florida, United States 11 trials
  • Parexel International Baltimore, Maryland, United States 11 trials
  • Partners in Research / New Mexico Albuquerque, New Mexico, United States 11 trials
  • Pediatric Perinatal HIV Clinical Trials Unit CRS Miami, Florida, United States 11 trials
  • Peninsula Sleep Center Burlingame, California, United States Ongoing trial 11 trials
  • Penn State Geisinger Medical Center Danville, Pennsylvania, United States 11 trials
  • Penn State University State College, Pennsylvania, United States Ongoing trial 11 trials
  • People Science, Inc. Los Angeles, California, United States Ongoing trial 11 trials
  • Perio Health Professionals Houston, Texas, United States Ongoing trial 11 trials
  • Peter Shalit, M.D. Seattle, Washington, United States Ongoing trial 11 trials
  • Pfizer Investigational Site Towson, Maryland, United States 11 trials
  • Pfizer Investigational Site Jupiter, Florida, United States 11 trials
  • Pfizer Investigational Site Southfield, Michigan, United States 11 trials
  • Pfizer Investigational Site Sunrise, Florida, United States 11 trials
  • Pfizer Investigational Site Pratt, Kansas, United States 11 trials
  • Pfizer Investigational Site Berkeley, California, United States 11 trials
  • Pfizer Investigational Site South Bend, Indiana, United States 11 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