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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 307,205 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 America307,205

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 States307,205
France73,197
Germany73,176
Italy48,496
China45,975
Japan38,756
Spain36,445
United Kingdom32,416

Trial sites

307,205 sites. Sites with a public page link to it on Pharma Observatory.

  • Pfizer Investigational Site Honolulu, Hawaii, United States 26 trials
  • Pfizer Investigational Site Colorado Springs, Colorado, United States 26 trials
  • Pfizer Investigational Site Newark, Delaware, United States 26 trials
  • Philadelphia VA Medical Center Philadelphia, Pennsylvania, United States Ongoing trial 26 trials
  • Premier Research Trenton, New Jersey, United States Ongoing trial 26 trials
  • Premiere Oncology Santa Monica, California, United States 26 trials
  • ProCare Vision Centers Granville, Ohio, United States Ongoing trial 26 trials
  • R and R Eye Research, LLC San Antonio, Texas, United States Ongoing trial 26 trials
  • Radiant Research Columbus, Ohio, United States 26 trials
  • Radiant Research San Antonio San Antonio, Texas, United States 26 trials
  • Research Site Bismarck, North Dakota, United States 26 trials
  • Research Site Dothan, Alabama, United States Ongoing trial 26 trials
  • Research Site Centennial, Colorado, United States Ongoing trial 26 trials
  • Research Site Wheat Ridge, Colorado, United States Ongoing trial 26 trials
  • Research Site Largo, Florida, United States Ongoing trial 26 trials
  • Research Site Ypsilanti, Michigan, United States Ongoing trial 26 trials
  • Research Site Huntersville, North Carolina, United States Ongoing trial 26 trials
  • Research Site Burbank, California, United States 26 trials
  • Research Site Abington, Pennsylvania, United States Ongoing trial 26 trials
  • Research Site Englewood, Colorado, United States Ongoing trial 26 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