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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.

  • West Haven Veteran's Administration Medical Center West Haven, Connecticut, United States 1 trial
  • West Haven Veterans Affairs Medical Center West Haven, Connecticut, United States Ongoing trial 1 trial
  • West Hills GI Portland, Oregon, United States 1 trial
  • West Hills Gastroenterology Associates Portland, Oregon, United States 1 trial
  • West Hills Gastroenterology Group Portland, Oregon, United States 1 trial
  • West Hills, CA Investigative Site 10013 West Hills, California, United States Ongoing trial 1 trial
  • West Hollywood Park Auditorium West Hollywood, California, United States 1 trial
  • West Hospital Cincinnati, Ohio, United States 1 trial
  • West Houston Allergy and Asthma, PA Katy, Texas, United States 1 trial
  • West Houston Area Clinical Trial Consultants ( Site 0014) Houston, Texas, United States 1 trial
  • West Houston Area Clinical Trial Consultants (Wichita, KS) Wichita, Kansas, United States Ongoing trial 1 trial
  • West Houston Area Clinical Trial Consultants, LLC - Katy Katy, Texas, United States Ongoing trial 1 trial
  • West Houston Clinical Research - Hunt Houston, Texas, United States 1 trial
  • West Houston Clinical Research Service (WHCRS) Houston, Texas, United States 1 trial
  • West Houston Clinical Research Services ( Site 0009) Houston, Texas, United States 1 trial
  • West Houston Clinical Research Services ( Site 0078) Houston, Texas, United States 1 trial
  • West Houston Clinical Research Services, 2026 Wirt Road Houston, Texas, United States 1 trial
  • West Houston Dermatology Houston, Texas, United States 1 trial
  • West Houston Dermatology /ID# 18330 Houston, Texas, United States 1 trial
  • West Houston Dermatology Laser and Skin Care Center Houston, Texas, 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.

Visit Pharma Observatory