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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 307,017 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

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 America307,017

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 States307,017
Germany73,166
France73,153
Italy48,417
China45,895
Japan38,740
Spain36,429
United Kingdom32,402

Trial sites

307,017 sites. Sites with a public page link to it on Pharma Observatory.

  • Westmorland Neurology Greensburg, Pennsylvania, United States 1 trial
  • Weston Contact Lens Institute LLC Weston, Florida, United States Ongoing trial 1 trial
  • Weston Diagnostics (Ultrasound Facility) Orlando, Florida, United States 1 trial
  • Weston Florida Cleveland Clinic Weston, Florida, United States 1 trial
  • Weston Outpatient Surgical Center Weston, Florida, United States Ongoing trial 1 trial
  • Westown Ambulatory Center West Des Moines, Iowa, United States Ongoing trial 1 trial
  • Westphal Group Lancaster, Pennsylvania, United States 1 trial
  • Westport Headache Institute Westport, Connecticut, United States 1 trial
  • Westroad Medical Group Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research /ID# 138304 Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research /ID# 142802 Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research /ID# 159979 Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research /ID# 160004 Omaha, Nebraska, United States 1 trial
  • Westroads Clinical Research-Omaha Omaha, Nebraska, United States 1 trial
  • Westroads Medical Group (Dr. William Palmer) Omaha, Nebraska, United States 1 trial
  • Westside Aesthetics /ID# 230305 Los Angeles, California, United States 1 trial
  • Westside Aesthetics /ID# 231196 Los Angeles, California, United States 1 trial
  • Westside Aesthetics /ID# 232443 Los Angeles, California, United States 1 trial
  • Westside Aesthetics /ID# 248232 Los Angeles, California, United States 1 trial

Explore the data behind the map on Pharma Observatory

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