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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.

  • L.A. Universal Research Center, Inc. Los Angeles, California, United States 8 trials
  • LEO Pharma Investigational Site Los Angeles, California, United States 8 trials
  • LEO Pharma Investigational Site Birmingham, Alabama, United States Ongoing trial 8 trials
  • LSU Health Science Center New Orleans, Louisiana, United States Ongoing trial 8 trials
  • LabCorp CRU, Inc. Madison, Wisconsin, United States 8 trials
  • Lahey Clinic Hospital Burlington, Massachusetts, United States Ongoing trial 8 trials
  • Lake Mary Pediatrics Orange City, Florida, United States 8 trials
  • Lakeview Medical Research Summerfield, Florida, United States 8 trials
  • Lamb Health, LLC Gilbert, Arizona, United States 8 trials
  • Lankenau Institute for Medical Research Bryn Mawr, Pennsylvania, United States Ongoing trial 8 trials
  • Lawrence and Memorial Cancer Center Waterford, Connecticut, United States Ongoing trial 8 trials
  • LeBauer Research Associates, PA Greensboro, North Carolina, United States 8 trials
  • Leavitt Medical Associates of Florida d/b/a Ameriderm Research Ormond Beach, Florida, United States 8 trials
  • Legacy Mount Hood Medical Center Glesham, Oregon, United States 8 trials
  • Lexicon Investigational Site Austin, Texas, United States 8 trials
  • Lexicon Investigational Site Boston, Massachusetts, United States 8 trials
  • Lice Source Services Plantation Plantation, Florida, United States 8 trials
  • Lifespan Providence, Rhode Island, United States Ongoing trial 8 trials
  • Lifespan Hospitals Providence, Rhode Island, United States 8 trials
  • Lindner Center for Research and Education at Christ Hospital Cincinnati, Ohio, United States Ongoing trial 8 trials

Explore the data behind the map on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.