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Research & Development Labs Directory


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This Research Laboratories directory includes research lab pages for every State in the USA plus Washington, DC.  Each State and District page lists research and development laboratories located in that State or District, including their company or website names as well as their locations, phone numbers, and website links. 
a microscope and glassware in a research laboratory
Before visiting a research lab listed herein, be sure to check its address, hours of operation, and appointment policy (if any) by visiting its website or contacting it.  The research lab may have moved or no longer be in business, and hours of operation may be irregular.

Each directory listing specifies the County in which the research lab is located as well as the database categories that are relevant to the listing.  Convenient links to adjacent State directories are provided at the bottom of each directory page.

Research & Development Laboratories in each State and Washington, DC

New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota

Rhode Island
South Carolina

South Dakota


West Virginia


Washington, DC

States with no research lab listings are grayed out in the State Menu.
The 10 states with the most research lab listings are shown below, along with the number of listings in each of these states.
  1. California (≈39)
  2. Maryland (≈21)
  3. Illinois (≈18)
  4. Massachusetts (≈16)
  5. New York (≈16)
  6. Texas (≈16)
  7. Florida (≈14)
  8. Washington (≈14)
  9. Ohio (≈13)
  10. New Jersey (≈12)
The 6 cities with the most research lab listings are shown below, along with the number of listings in each of these cities.
  1. San Diego, California (≈6)
  2. Chicago, Illinois (≈6)
  3. Gaithersburg, Maryland (≈6)
  4. Rockville, Maryland (≈6)
  5. Ann Arbor, Michigan (≈5)
  6. Seattle, Washington (≈5)

Nationwide Research & Development Laboratories

The following enterprises have offices or other operations in multiple locations; most of them have operations in multiple states.  Many of these large research and development laboratories list their primary office locations on their websites.

Bio-Reference Laboratories Inc
Located in about 3 states.
  • Medical Diagnostic Clinics
  • Medical Diagnostic Services
  • Medical Laboratories
  • Medical Services
  • Laboratories
  • Research and Development Laboratories
  • Testing Laboratories

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Research & Development Laboratories Directory