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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 307,818 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 America307,818

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 States307,818
France73,311
Germany73,247
Italy48,647
China46,227
Japan38,811
Spain36,541
United Kingdom32,473

Trial sites

307,818 sites. Sites with a public page link to it on Pharma Observatory.

  • Primary Physicians Research, Inc Pittsburgh, Pennsylvania, United States 18 trials
  • Prisma Health Columbia, South Carolina, United States Ongoing trial 18 trials
  • Prisma Health Midlands Columbia, South Carolina, United States Ongoing trial 18 trials
  • Queens Cancer Center Rego Park, New York, United States Ongoing trial 18 trials
  • Radiant Research, Inc. Edina, Minnesota, United States 18 trials
  • Radiation Oncology Practice Corporation - North Kansas City, Missouri, United States Ongoing trial 18 trials
  • Radiation Oncology Practice Corporation South Kansas City, Missouri, United States Ongoing trial 18 trials
  • Radiation Oncology Practice Corporation Southwest Overland Park, Kansas, United States Ongoing trial 18 trials
  • Raj K. Maturi, M.D., P.C. Indianapolis, Indiana, United States Ongoing trial 18 trials
  • Raj K. Maturi, MD PC Indianapolis, Indiana, United States Ongoing trial 18 trials
  • Rancho Research Institute Downey, California, United States Ongoing trial 18 trials
  • Red Oak Psychiatry Associates Houston, Texas, United States Ongoing trial 18 trials
  • Regeneron Study Site New York, New York, United States 18 trials
  • Reliant Medical Group Worcester, Massachusetts, United States Ongoing trial 18 trials
  • Renal Associates of Baton Rouge Baton Rouge, Louisiana, United States Ongoing trial 18 trials
  • Research Carolina Elite Denver, North Carolina, United States Ongoing trial 18 trials
  • Research Site East Syracuse, New York, United States Ongoing trial 18 trials
  • Research Site El Cajon, California, United States Ongoing trial 18 trials
  • Research Site Panama City, Florida, United States 18 trials
  • Research Site Oak Brook, Illinois, United States Ongoing trial 18 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