| University of Alabama at Birmingham Hospital | Birmingham | Alabama | 35294 | - |
| Syed Research Consultants | Sheffield | Alabama | 35660 | - |
| Phoenix Medical Group | Peoria | Arizona | 85381 | - |
| Epic Medical Research-Surprise | Sun City | Arizona | 85351 | - |
| Alliance for Multispecialty Research | Tempe | Arizona | 85281 | - |
| Novak Clinical Research | Tucson | Arizona | 85741 | - |
| Antelope Valley Clinical Trials | Lancaster | California | 93534 | - |
| Ark Clinical Research - Ballinger | Long Beach | California | 90815 | - |
| Downtown LA Research Center, Inc. | Los Angeles | California | 90017 | - |
| Newport Native MD, Inc. | Newport Beach | California | 92663 | - |
| OM Research | Oxnard | California | 93036 | - |
| Prospective Research Innovations, Inc. | Rancho Cucamonga | California | 91730 | - |
| Velocity Clinical Research - Denver | Englewood | Colorado | 80110 | - |
| Access Research Institute | Brooksville | Florida | 34613 | - |
| Clinical Research of West Florida - Clearwater | Clearwater | Florida | 33765 | - |
| Innovative Research of West Florida, Inc. | Clearwater | Florida | 33756 | - |
| JY Research Institute | Cutler Bay | Florida | 33189 | - |
| Hillcrest Medical Research, LLC | DeLand | Florida | 32720 | - |
| Direct Helper Research Center | Hialeah | Florida | 33012 | - |
| Homestead Associates in Research Inc. | Homestead | Florida | 33033 | - |
| AppleMed Research Group, LLC | Miami | Florida | 33126 | - |
| Coral Research Clinic Corporation | Miami | Florida | 33186 | - |
| De La Cruz Research Center, LLC | Miami | Florida | 33184 | - |
| Reliant Medical Research LLC | Miami | Florida | 33165 | - |
| Valencia Medical & Research Center | Miami | Florida | 33174 | - |
| Y&L Advanced Health Care, Inc. | Miami | Florida | 33144 | - |
| Pro-Care Research Center, Corp. | Miami Gardens | Florida | 33014 | - |
| San Marcus Research Clinic, Inc. | Miami Lakes | Florida | 33014 | - |
| Florida Institute for Clinical Research | Orlando | Florida | 32825 | - |
| Sarasota Clinical Research | Sarasota | Florida | 34239 | - |
| TBC Research | Tamarac | Florida | 33321 | - |
| Clinical Research of West Florida - Tampa | Tampa | Florida | 33606 | - |
| Appalachian Clinical Research, LLC | Adairsville | Georgia | 30103 | - |
| Pulmonology, Sleep, Asthma, and Allergy Center - Dublin | Dublin | Georgia | 31021 | - |
| CPCC - Research, LLC | East Point | Georgia | 30344 | - |
| Centricity Research | Rincon | Georgia | 31326 | - |
| Velocity Clinical Research - Boise | Meridian | Idaho | 83642 | - |
| OSF HealthCare Saint Francis Medical Center | Peoria | Illinois | 61606 | - |
| Indiana Medical Research Institute | Merrillville | Indiana | 46410 | - |
| The Research Group of Lexington, LLC | Lexington | Kentucky | 40503 | - |
| Tandem Clinical Research | Metairie | Louisiana | 70006 | - |
| Care Access - Shreveport | Shreveport | Louisiana | 71105 | - |
| Mayflower Clinical | South Dartmouth | Massachusetts | 02747 | - |
| Revival Research Institute, LLC | Dearborn | Michigan | 48126 | - |
| Henry Ford Health System | Detroit | Michigan | 48207 | - |
| Pulmonary Research Institute of SE Michigan | Farmington Hills | Michigan | 48336 | - |
| Revive Research Institute | Southfield | Michigan | 48075 | - |
| Midwest Chest Consultants | Saint Charles | Missouri | 63301 | - |
| Montana Medical Research, Inc. | Missoula | Montana | 59808 | - |
| Henderson Trials | Henderson | Nevada | 89052 | - |
| Rutgers, The State University of New Jersy | New Brunswick | New Jersey | 08901 | - |
| Certified Research Associates Finger Lakes Medical Research, LLC | Cortland | New York | 13045 | - |
| Corning Center for Clinical Research Smith Allergy & Asthma Specialists | Horseheads | New York | 14845 | - |
| OnSite Clinical Solutions | Charlotte | North Carolina | 28277 | - |
| Clinical Research of Gastonia | Gastonia | North Carolina | 28054 | - |
| Triad Clinical Trials | Greensboro | North Carolina | 27410 | - |
| Peters Medical Research | High Point | North Carolina | 27260 | - |
| Advanced Respiratory and Sleep Medicine | Huntersville | North Carolina | 28078 | - |
| Accellacare Wilmington | Wilmington | North Carolina | 28401 | - |
| Southeastern Research Center | Winston-Salem | North Carolina | 27103 | - |
| Remington Davis | Columbus | Ohio | 43215 | - |
| NexGen Research | Lima | Ohio | 45801 | - |
| OK Clinical Research | Edmond | Oklahoma | 73034 | - |
| Velocity Clinical Research - Grants Pass | Grants Pass | Oregon | 97257 | - |
| Velocity Clinical Research - Medford | Medford | Oregon | 97504 | - |
| Clinical Research Associates of Central PA | DuBois | Pennsylvania | 15801 | - |
| Temple University | Philadelphia | Pennsylvania | 19140 | - |
| Allergy and Clinical Immunology Associates | Pittsburgh | Pennsylvania | 15241 | - |
| University of Pittsburgh/UPMC | Pittsburgh | Pennsylvania | 15213 | - |
| AnMed Health | Anderson | South Carolina | 29621 | - |
| Velocity Clinical Research - Anderson | Anderson | South Carolina | 29621 | - |
| Medical University of South Carolina | Charleston | South Carolina | 29245 | - |
| Velocity Clinical Research - Columbia | Columbia | South Carolina | 29204 | - |
| Velocity Clinical Research - Gaffney | Gaffney | South Carolina | 29340 | - |
| Velocity Clinical Research - Greenville | Greenville | South Carolina | 29615 | - |
| Clinical Research of Rock Hill | Rock Hill | South Carolina | 29732 | - |
| Velocity Clinical Research - Spartanburg | Spartanburg | South Carolina | 29303 | - |
| Velocity Clinical Research - Union | Union | South Carolina | 29379 | - |
| Pulmonary & Sleep Specialists | Dickson | Tennessee | 37055 | - |
| Premier Research Center, LLC | Hendersonville | Tennessee | 37075 | - |
| New Phase Research & Development | Knoxville | Tennessee | 37909 | - |
| TTS Research | Boerne | Texas | 78006 | - |
| Proactive RGV | Brownsville | Texas | 78520 | - |
| Ten20 Clinical Research, LLC | Carrollton | Texas | 75010 | - |
| IntraCare Health Center | Dallas | Texas | 75254 | - |
| IntraCare Clinical | Greenville | Texas | 75401 | - |
| Axsendo Clinical Research | Houston | Texas | 77030 | - |
| Gulf Coast Clinical Research | Houston | Texas | 77070 | - |
| R & H Clinical Research | Katy | Texas | 77494 | - |
| IntraCare Health Center | McKinney | Texas | 75071 | - |
| SMS Clinical Research | Mesquite | Texas | 75149 | - |
| ADP Clinical Research | Splendora | Texas | 77372 | - |
| Alpine Research Organization, Inc. | Layton | Utah | 84041 | - |
| Velocity Clinical Research - Hampton | Hampton | Virginia | 23666 | - |