| Coastal Clinical Research, LLC | Mobile | Alabama | 36608 | - |
| Clinical Research Consortium, An AMR Company | Tempe | Arizona | 85283 | - |
| Radiant Research, Inc. | Tucson | Arizona | 85712 | - |
| Baptist Health Center for Clinical Research | Little Rock | Arkansas | 72205 | - |
| Woodland International Research Group, LLC | Little Rock | Arkansas | 72211 | - |
| Pharmacology Research Institute | Encino | California | 91316 | - |
| eStudySite | La Mesa | California | 91942 | - |
| Collaborative Neuroscience Network, LLC | Long Beach | California | 90806 | - |
| Pharmacology Research Institute | Los Alamitos | California | 90720 | - |
| Synergy San Diego | National City | California | 91950 | - |
| Pharmacology Research Institute | Newport Beach | California | 92660 | - |
| Optimus Medical Group | San Francisco | California | 94102 | - |
| Diablo Clinical Research, Inc. | Walnut Creek | California | 94598 | - |
| Yale University | New Haven | Connecticut | 06519 | - |
| Ki Health Partners LLC DBA New England Institute for Clinical Research | Stamford | Connecticut | 06905 | - |
| MD Clinical | Hallandale | Florida | 33009 | - |
| AGA Clinical Trials | Hialeah | Florida | 33012 | - |
| Multi-Specialty Research Associates, Inc. | Lake City | Florida | 32055 | - |
| Qps Mra, Llc | Miami | Florida | 33143 | - |
| Clinical Neuroscience Solutions, Inc | Orlando | Florida | 32801 | - |
| Ormond Medical Arts Pharmaceutical Research | Ormond Beach | Florida | 32174 | - |
| Synexus | Atlanta | Georgia | 30328 | - |
| iResearch Atlanta, LLC | Decatur | Georgia | 30030 | - |
| Meridian Clinical Research, LLC | Savannah | Georgia | 31406 | - |
| Heartland Research Associates LLC | Augusta | Kansas | 67010 | - |
| Heartland Research Associates, LLC | Wichita | Kansas | 67205 | - |
| Cresent City Headache and Neurology Center LLC | Chalmette | Louisiana | 70043 | - |
| DelRicht Research | New Orleans | Louisiana | 70124 | - |
| New Orleans Center for Clinical Research | New Orleans | Louisiana | 70119 | - |
| Boston Clinical Trials | Boston | Massachusetts | 02131 | - |
| NECCR Primacare Research, LLC | Fall River | Massachusetts | 02721 | - |
| Community Clinical Research Network/Milford Emergency Associates, Inc | Marlborough | Massachusetts | 01752 | - |
| Clinical Research Institute, Inc. | Minneapolis | Minnesota | 55042 | - |
| Clinical Research Institute, Inc. | Plymouth | Minnesota | 55441 | - |
| StudyMetrix Research, LLC | City of Saint Peters | Missouri | 63303 | - |
| Center for Pharmaceutical Research | Kansas City | Missouri | 64114 | - |
| Sundance Clinical Research | St Louis | Missouri | 63141 | - |
| Meridian Clinical Research, LLC | Norfolk | Nebraska | 68701 | - |
| Hassman Research Institute | Berlin | New Jersey | 08009 | - |
| Albuquerque Clinical Trials, Inc. | Albuquerque | New Mexico | 87102 | - |
| SPRI Clinical Trials, LLC | Brooklyn | New York | 11235 | - |
| CNS Research Science, Inc. | Jamaica | New York | 11432 | - |
| Rochester Clinical Research, Inc. | Rochester | New York | 14609 | - |
| PharmQuest, LLC | Greensboro | North Carolina | 27408 | - |
| PMG Research of Raleigh | Raleigh | North Carolina | 27609 | - |
| Wilmington Health, PLLC | Wilmington | North Carolina | 28401 | - |
| Radiant Research, Inc. | Columbus | Ohio | 43212 | - |
| Hometown Urgent Care and Research | Dayton | Ohio | 45424 | - |
| Midwest Clinical Research Center | Dayton | Ohio | 45417 | - |
| Neurology Diagnostics, Inc. | Dayton | Ohio | 45459 | - |
| Aventiv Research Inc | Dublin | Ohio | 43016 | - |
| Summit Research Network (Oregon) Inc. | Portland | Oregon | 97210 | - |
| Clinical Research of Philadelphia, LLC | Philadelphia | Pennsylvania | 19114 | - |
| Coastal Carolina Research | Mt. Pleasant | South Carolina | 29464 | - |
| Meridian Clinical Research | Dakota Dunes | South Dakota | 57049 | - |
| Volunteer Research Group | Knoxville | Tennessee | 37920 | - |
| Clinical Research Institute, Inc. | Nashville | Tennessee | 37203 | - |
| Nashville Neuroscience Group | Nashville | Tennessee | 37203 | - |
| Tekton Research, Inc | Austin | Texas | 78745 | - |
| FutureSearch Trials of Dallas, LP | Dallas | Texas | 75231 | - |
| Ventavia Research Group, LLC | Fort Worth | Texas | 76104 | - |
| Texas Center for Drug Development, Inc. | Houston | Texas | 77081 | - |
| Red Star Research | Lake Jackson | Texas | 77566 | - |
| DM Clinical Research | Tomball | Texas | 77375 | - |
| Charlottesville Medical Research | Charlottesville | Virginia | 22911 | - |
| Tidewater Integrated Medical Research | Virginia Beach | Virginia | 23454 | - |
| Northwest Clinical Research Center | Bellevue | Washington | 98007 | - |
| Seattle Women's: Health, Research, Gynecology | Seattle | Washington | 98105 | - |
| Clinical Investigation Specialists, Inc. | Kenosha | Wisconsin | 53144 | - |