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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 Worcester, Massachusetts, United States 31 trials
  • Pfizer Investigational Site Fort Lauderdale, Florida, United States 31 trials
  • Pfizer Investigational Site Orange, California, United States 31 trials
  • Pharmax Research Clinic, Inc. Miami, Florida, United States Ongoing trial 31 trials
  • Phelps County Regional Medical Center Rolla, Missouri, United States Ongoing trial 31 trials
  • Piedmont Medical Research Associates Winston-Salem, North Carolina, United States 31 trials
  • Preferred Primary Care Physicians, Inc. Pittsburgh, Pennsylvania, United States Ongoing trial 31 trials
  • Presbyterian Hospital Albuquerque, New Mexico, United States Ongoing trial 31 trials
  • Profil Institute for Clinical Research, Inc. Chula Vista, California, United States 31 trials
  • Pulmonary Associates, PA Phoenix, Arizona, United States Ongoing trial 31 trials
  • Radiological Associates of Sacramento Medical Group, Incorporated Sacramento, California, United States 31 trials
  • Reproductive Medicine Associates of New Jersey Basking Ridge, New Jersey, United States Ongoing trial 31 trials
  • Research Site McAllen, Texas, United States Ongoing trial 31 trials
  • Research Site Lake Charles, Louisiana, United States Ongoing trial 31 trials
  • Research Site Waco, Texas, United States Ongoing trial 31 trials
  • Research Site Mesquite, Texas, United States Ongoing trial 31 trials
  • Research Site Maumee, Ohio, United States Ongoing trial 31 trials
  • Research Site Lakeland, Florida, United States Ongoing trial 31 trials
  • Research Site Burke, Virginia, United States Ongoing trial 31 trials
  • Research Site Lancaster, California, United States Ongoing trial 31 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