| Achieve Clinical Research, LLC | Birmingham | Alabama | 35216 | - |
| Clinical Research Advantage, Inc./Simon Williamson Clinic, PC | Birmingham | Alabama | 35211 | - |
| Synexus Clinical Research US, Inc./East Valley Family Physicians PLC | Chandler | Arizona | 85224 | - |
| Synexus Clinical Research US, Inc./Desert Clinical Research, LLC | Mesa | Arizona | 85213 | - |
| Synexus Clinical Research US, Inc./Central Phoenix Medical Clinic, LLC | Phoenix | Arizona | 85020 | - |
| Anaheim Clinical Trials, LLC | Anaheim | California | 92801 | - |
| Hope Clinical Research | Canoga Park | California | 91303 | - |
| Pharmacology Research Institute | Encino | California | 91316 | - |
| Sun Valley Research Center, Inc. | Imperial | California | 92251 | - |
| Irvine Center for Clinical Research | Irvine | California | 92614 | - |
| Grossmont Center for Clinical Research | La Mesa | California | 91942 | - |
| Synergy San Diego | Lemon Grove | California | 91945 | - |
| Collaborative Neuroscience Network, LLC. | Long Beach | California | 90806 | - |
| Pharmacology Research Institute | Los Alamitos | California | 90720 | - |
| Pacific Research Partners, LLC | Oakland | California | 94607 | - |
| Excell Research, Inc. | Oceanside | California | 92056 | - |
| Desert Valley Research | Redlands | California | 92374 | - |
| California Research Foundation | San Diego | California | 92123-1881 | - |
| Medical Center for Clinical Research | San Diego | California | 92108 | - |
| Artemis Institute for Clinical Research | San Marcos | California | 92078 | - |
| California Medical Clinic for Headache | Santa Monica | California | 90404 | - |
| Encompass Clinical Research | Spring Valley | California | 91978 | - |
| Synexus Clinical Research US, Inc. | Vista | California | 92083 | - |
| Diablo Clinical Research, Inc | Walnut Creek | California | 94598 | - |
| Delta Waves, Inc. | Colorado Springs | Colorado | 80918 | - |
| Advanced Neurosciences Research, LLC | Fort Collins | Colorado | 80528 | - |
| MD Clinical | Hallandale | Florida | 33009 | - |
| Infinity Clinical Research | Hollywood | Florida | 33024 | - |
| Clinical Neuroscience Solutions | Jacksonville | Florida | 32256 | - |
| Health Awareness, Inc. | Jupiter | Florida | 33458 | - |
| Meridien Research | Maitland | Florida | 32751 | - |
| Well Pharma Medical Research, Corp. | Miami | Florida | 33173 | - |
| Sensible Healthcare LLC | Ocoee | Florida | 34761 | - |
| Bioclinica Research | Orlando | Florida | 32806 | - |
| Clinical Neuroscience Solutions, Inc | Orlando | Florida | 32801 | - |
| Infinity Clinical Research LLC | Sunrise | Florida | 33351 | - |
| Meridien Research | Tampa | Florida | 33634 | - |
| Palm Beach Research Center | West Palm Beach | Florida | 33409 | - |
| Premiere Research Institute | West Palm Beach | Florida | 33407 | - |
| Atlanta Center for Clinical Research | Atlanta | Georgia | 30331 | - |
| Synexus Clinical Research US, Inc. | Atlanta | Georgia | 30328 | - |
| Columbus Regional Research Institute | Columbus | Georgia | 31904 | - |
| iResearch Atlanta | Decatur | Georgia | 30030 | - |
| Clinical Research Atlanta | Stockbridge | Georgia | 30281 | - |
| Northwest Clinical Trials | Boise | Idaho | 83704 | - |
| Advanced Clinical Research | Meridian | Idaho | 83642 | - |
| Evanston Premier Healthcare Research LLC | Evanston | Illinois | 60201 | - |
| MidAmerica Neuroscience Research Foundation dba Rowe Neurology Institute | Lenexa | Kansas | 66214 | - |
| Kansas Institute of Research | Overland Park | Kansas | 66211 | - |
| Phoenix Medical Research, Inc. | Prairie Village | Kansas | 66208 | - |
| Kentucky Pediatric Research | Bardstown | Kentucky | 40004 | - |
| L-MARC Research Center | Louisville | Kentucky | 40213 | - |
| New Orleans Center for Clinical Research | New Orleans | Louisiana | 70119 | - |
| Community Clinical Research Network | Marlborough | Massachusetts | 01752 | - |
| Michigan Headache & Neurological Institute | Ann Arbor | Michigan | 48104 | - |
| Beyer Research | Kalamazoo | Michigan | 49009 | - |
| Clinical Research Institute, Inc. | Minneapolis | Minnesota | 55402 | - |
| Olive Branch Family Medical Center | Olive Branch | Mississippi | 38654 | - |
| ClinVest | Springfield | Missouri | 65810 | - |
| Meridian Clinical Research, LLC | Norfolk | Nebraska | 68701 | - |
| Meridian Clinical Research, LLC | Omaha | Nebraska | 68134 | - |
| Quality Clinical Research | Omaha | Nebraska | 68114 | - |
| Synexus Clinical Research US, Inc | Omaha | Nebraska | 68144 | - |
| Altea Research Institute | Las Vegas | Nevada | 89102 | - |
| Hassman Research Institutes | Berlin | New Jersey | 08009 | - |
| Amici Clinical Research | Raritan | New Jersey | 08869 | - |
| Princeton Center for Clinical Research | Skillman | New Jersey | 08558 | - |
| Bio Behavioral Health | Toms River | New Jersey | 08755 | - |
| Albuquerque Clinical Trials, Inc. | Albuquerque | New Mexico | 87102 | - |
| Dent Neurosciences Research Center | Amherst | New York | 14226 | - |
| Regional Clinical Research, Inc. | Endwell | New York | 13760 | - |
| Synexus Clinical Research US, Inc. | Jamaica | New York | 11432 | - |
| Central New York Clinical Research | Manlius | New York | 13104 | - |
| Rochester Clinical Research | Rochester | New York | 14609 | - |
| Upstate Clinical Research Associates, LLC | Williamsville | New York | 14221 | - |
| Plains Clinical Medical Clinic, LLC | Fargo | North Dakota | 58104 | - |
| Synexus Clinical Research US, Inc. | Akron | Ohio | 44311 | - |
| Synexus Clinical Research US, Inc. | Cincinnati | Ohio | 45236 | - |
| Rapid Medical Research, Inc. | Cleveland | Ohio | 44122 | - |
| Ohio Clinical Research, LLC | Willoughby Hills | Ohio | 44094 | - |
| IPS Research Company | Oklahoma City | Oklahoma | 73106 | - |
| Lynn Health Science Institute | Oklahoma City | Oklahoma | 73112 | - |
| Summit Research Network | Portland | Oregon | 97210 | - |
| Oregon Center for Clinical Investigations, Inc. | Salem | Oregon | 97301 | - |
| Lehigh Center for Clinical Research | Allentown | Pennsylvania | 18104 | - |
| Suburban Research Associates | Media | Pennsylvania | 19063 | - |
| Clinical Research of Philadelphia, LLC | Philadelphia | Pennsylvania | 19114 | - |
| Frontier Clinical Research, LLC | Scottdale | Pennsylvania | 15683 | - |
| Frontier Clinical Research, LLC | Smithfield | Pennsylvania | 15478 | - |
| Radiant Research, Inc. | Anderson | South Carolina | 29621 | - |
| Coastal Carolina Research Center | Mt. Pleasant | South Carolina | 29464 | - |
| Meridian Clinical Research, LLC | Dakota Dunes | South Dakota | 57049 | - |
| Volunteer Research Group | Knoxville | Tennessee | 37920 | - |
| CNS Healthcare - Memphis | Memphis | Tennessee | 38119 | - |
| Trinity Clinical Research | Tullahoma | Tennessee | 37388 | - |
| FutureSearch Trials of Neurology | Austin | Texas | 78731 | - |
| Tekton Research, Inc | Austin | Texas | 78745 | - |
| DiscoveResearch, Inc. | Bryan | Texas | 77802 | - |
| FutureSearch Trials of Dallas, LP | Dallas | Texas | 75231 | - |
| Earle Research | Houston | Texas | 77058 | - |
| Research Trials WorldWide, LLC | Humble | Texas | 77338 | - |
| Synexus Clinical Research US, Inc. | San Antonio | Texas | 78229 | - |
| ClinPoint Trials | Waxahachie | Texas | 75165 | - |
| J. Lewis Research, Inc./Foothill Family Clinic Draper | Draper | Utah | 84020 | - |
| Advanced Research Institute | Ogden | Utah | 84403 | - |
| Advanced Clinical Research | West Jordan | Utah | 84088 | - |
| Charlottesville Medical Research Center, LLC | Charlottesville | Virginia | 22911 | - |
| Clinical Research Associates of Tidewater | Norfolk | Virginia | 23507 | - |
| Tidewater Integrated Medical Research | Virginia Beach | Virginia | 23454 | - |
| Northwest Clinical Research Center | Bellevue | Washington | 98007 | - |
| Seattle Women's: Health, Research | Seattle | Washington | 98105 | - |
| SSM Dean Health Research | Madison | Wisconsin | 53715 | - |