| Perseverance Research Center, LLC | Scottsdale | Arizona | 85253 | - |
| Physicians Research Group | Tempe | Arizona | 85284 | - |
| Advanced Research Center, Inc. | Anaheim | California | 92805 | - |
| ProScience Research Group | Culver City | California | 90230 | - |
| Neuro-Pain Research Center | Fresno | California | 93710 | - |
| Altman Clinical and Translational Research Institute, University of California San Diego | La Jolla | California | 93037 | - |
| Adult & Child Neurology Medical Associates | Long Beach | California | 90806 | - |
| Memorialcare Miller Children's & Women's Hospital Long Beach | Long Beach | California | 90806 | - |
| Velocity Clinical Research - North Hollywood | North Hollywood | California | 91606 | - |
| The Neurology Group | Pomona | California | 91767 | - |
| UC Davis Medical Center, Investigational Drug Service (IDS) Pharmacy | Sacramento | California | 95817 | - |
| University of California, Davis Clinical and Translational Science Center Clinical Research Center | Sacramento | California | 95817 | - |
| University of California, Davis Midtown Clinic | Sacramento | California | 95817 | - |
| Velocity Clinical Research- Banning | San Bernardino | California | 92408 | - |
| Pacific Clinical Research Management Group LLC | Upland | California | 91786 | - |
| Sunwise Clinical Research | Walnut Creek | California | 94596 | - |
| Children's Hospital Colorado | Aurora | Colorado | 80045 | - |
| Children's Hospital Colorado- Investigational Drug Services | Aurora | Colorado | 80045 | - |
| Colorado Springs Neurological Associates, PC | Colorado Springs | Colorado | 80907 | - |
| Colorado Springs Neurological Associates, PC | Colorado Springs | Colorado | 80919 | - |
| Boeson Research GJT | Grand Junction | Colorado | 81501 | - |
| Boeson Research GJT | Grand Junction | Colorado | 81505 | - |
| Dinosaur Pediatrics | Grand Junction | Colorado | 81501 | - |
| CT Clinical Research | Cromwell | Connecticut | 06416 | - |
| Ki Health Partners, LLc, dba New England Institute for Clinical Research | Stamford | Connecticut | 06905 | - |
| Children's National Medical Center | Washington D.C. | District of Columbia | 20010 | - |
| AppleMed Research Group, LLC | Miami | Florida | 33126 | - |
| Medical Research Center of Miami II, Inc | Miami | Florida | 33134 | - |
| South Florida Research Phase I-IV, Inc | Miami | Florida | 33166 | - |
| Physicians Group Services, PA d/b/a Coastal Health Research | Orange Park | Florida | 32073 | - |
| Clinical Associates of Orlando, LLC | Orlando | Florida | 32819 | - |
| ForCare Clinical Research | Tampa | Florida | 33613 | - |
| Premiere Research Institute at Palm Beach Neurology | West Palm Beach | Florida | 33407 | - |
| Childrens Healthcare of Atlanta | Atlanta | Georgia | 30329 | - |
| Rare Disease Research LLC | Atlanta | Georgia | 30329 | - |
| Pivotal Clinical Research & Associates, LLC | Brunswick | Georgia | 31520 | - |
| CenExel iResearch, LLC | Decatur | Georgia | 30030 | - |
| Chicago Headache Center & Research Institute | Chicago | Illinois | 60657 | - |
| AMR-Baber Research Inc | Naperville | Illinois | 60563 | - |
| Options Research Group, LLC | Westfield | Indiana | 46074 | - |
| Integrated Clinical Trial Services | West Des Moines | Iowa | 50265 | - |
| Clinical Associates Midwest, LLC | Kansas City | Kansas | 66214 | - |
| University of Kentucky Hospital | Lexington | Kentucky | 40536 | - |
| Ochsner Clinic Foundation | New Orleans | Louisiana | 70121 | - |
| MedVadis Research Corporation | Waltham | Massachusetts | 02451 | - |
| Michigan Head Pain and Neurological Institute | Ann Arbor | Michigan | 48104 | - |
| Corewell Health, for and on behalf of Spectrum Health Hospital and Corewell Health Medical Group | Grand Rapids | Michigan | 49503 | - |
| Corewell Health, Helen DeVos Children's Hospital | Grand Rapids | Michigan | 49503 | - |
| Wellnow Urgent Care and Research | Kalamazoo | Michigan | 49048 | - |
| Beaumont Hospital, Royal Oak Campus | Royal Oak | Michigan | 48073 | - |
| Sharlin Health Neuroscience Research Center | Ozark | Missouri | 65721 | - |
| Clinvest Research, LLC | Springfield | Missouri | 65807 | - |
| Boeson Research | Great Falls | Montana | 59405 | - |
| Heart & Hands Midwifery | Kalispell | Montana | 59901 | - |
| Blue Moose Pediatrics | Missoula | Montana | 59804 | - |
| Boeson Research | Missoula | Montana | 59804 | - |
| Boeson Research Laboratory | Missoula | Montana | 59804 | - |
| Alivation Research, LLC | Lincoln | Nebraska | 68526 | - |
| Children's Hospital & Medical Center | Omaha | Nebraska | 68114 | - |
| HMH Jersey Shore University Medical Center | Neptune City | New Jersey | 07753 | - |
| Hope Tower | Neptune City | New Jersey | 07753 | - |
| Dent Neurosciences Research Center | Amherst | New York | 14226 | - |
| True North Neurology | Commack | New York | 11725 | - |
| Columbia University Irving Medical Center | New York | New York | 10032 | - |
| Irving Center for Clinical and Translational Research, Outpatient Clinical Research Unit | New York | New York | 10032 | - |
| Mount Sinai Hospital - Pharmacy Department | New York | New York | 10029 | - |
| New York Neurology Associates | New York | New York | 10003 | - |
| The Neurological Institute of New York | New York | New York | 10032 | - |
| North Suffolk Neurology | Port Jefferson Station | New York | 11776 | - |
| OnSite Clinical Solutions, LLC | Charlotte | North Carolina | 28277 | - |
| Headache Wellness Center, PC | Greensboro | North Carolina | 27405 | - |
| Cincinnati Children's Hospital | Cincinnati | Ohio | 45229 | - |
| Velocity Clinical Research - Cincinnati | Cincinnati | Ohio | 45242 | - |
| WellNow Urgent Care and Research | Cincinnati | Ohio | 45215 | - |
| University Hospitals Cleveland Medical Center | Cleveland | Ohio | 44106 | - |
| Wellnow Urgent Care and Research | Dayton | Ohio | 45424 | - |
| IPS Research Company | Oklahoma City | Oklahoma | 73106 | - |
| Velocity Clinical Research, Grants Pass | Grants Pass | Oregon | 97527 | - |
| Providence Neuroscience Institute: Research Coordinators' Office | Portland | Oregon | 97225 | - |
| Providence Pediatric Specialty Clinic | Portland | Oregon | 97225 | - |
| Children's Hospital of Philadelphia | Philadelphia | Pennsylvania | 19104 | - |
| Clario | Philadelphia | Pennsylvania | 19103 | - |
| Velocity Clinical Research-Providence | East Greenwich | Rhode Island | 02818 | - |
| Velocity Clinical Research- Greenville | Greenville | South Carolina | 29615 | - |
| Premier Neurology | Greer | South Carolina | 29650 | - |
| Novaceut Clinical Research | Clarksville | Tennessee | 37043 | - |
| Le Bonheur Children's Hospital | Memphis | Tennessee | 38103 | - |
| Le Bonheur Childrens Hospital - Childrens Foundation Research Institute | Memphis | Tennessee | 38103 | - |
| Le Bonheur Childrens Hospital - Outpatient Building | Memphis | Tennessee | 38103 | - |
| Access Clinical Trials, Inc. | Nashville | Tennessee | 37203 | - |
| Child Neurology Consultants of Austin - Central Austin | Austin | Texas | 78757 | - |
| Child Neurology Consultants of Austin - South Austin | Austin | Texas | 78749 | - |
| Dell Children's Medical Center | Austin | Texas | 78723 | - |
| Houston Clinical Trials, LLC | Bellaire | Texas | 77401 | - |
| Cedar Health Research | Dallas | Texas | 75251 | - |
| Infinite Research Group, LLC | Dallas | Texas | 75201 | - |
| ANESC Research | El Paso | Texas | 79912 | - |
| North Texas Institute of Neurology and Headache | Frisco | Texas | 75034 | - |
| Houston Clinical Research,LLC. | Houston | Texas | 77081 | - |
| NeuroCare Plus | Houston | Texas | 77094 | - |
| Pain and Headache Centers of Texas | Houston | Texas | 77054 | - |
| SCLA Management | Houston | Texas | 77077 | - |
| Trio Clinical Trials, LLC. | Houston | Texas | 77008 | - |
| AIM Trials, LLC | Plano | Texas | 75093 | - |
| JBR Clinical Research | Salt Lake City | Utah | 84107 | - |
| Wasatch Clinical Research , LLC(Administrative Location) | Salt Lake City | Utah | 84107 | - |
| Pediatric Associates of Charlottesville, PLC (Private Pediatric Practice) | Charlottesville | Virginia | 22902 | - |
| Pediatric Research of Charlottesville, LLC | Charlottesville | Virginia | 22902 | - |
| Pediatric Research of Charlottesville, LLC (Regulatory Only) | Charlottesville | Virginia | 22902 | - |
| Children's Hospital of The King's Daughters | Norfolk | Virginia | 23507 | - |
| Children's Specialty Group, PLLC , Division of Childhood & Adolescent Neurology | Norfolk | Virginia | 23510 | - |
| National Clinical Research, Inc. | Richmond | Virginia | 23294 | - |
| Northwest Clinical Research Center | Bellevue | Washington | 98007 | - |
| Seattle Children's Hospital | Seattle | Washington | 98105 | - |
| Seattle Children's Hospital Investigational Drug Services | Seattle | Washington | 98105 | - |
| University Hospital | Madison | Wisconsin | 53792 | - |