#1Emeritas Research Group
Based in VA
Clinical Research Sites in Loudoun County, VA
The top-ranked clinical research sites serving Loudoun County, VA are Emeritas Research Group, Inova Loudoun Hospital and Virginia Cancer Specialists PC. We list 195 clinical research sites serving Loudoun County, VA. 30 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical Research Sites serving Loudoun County, VA. 195 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical research sites for Loudoun County
#2Inova Loudoun Hospital
Based in VA#3Virginia Cancer Specialists PC
Based in VA#4Carient Heart and Vascular LLC-Reston
Serves this area from Reston, VA (18 mi)#5Virginia Cancer Specialists, PC
Serves this area from Reston, VA (18 mi)#6Virginia Cancer Specialists
Serves this area from Gainesville, VA (19 mi)#7Inova Fair Oaks Hospital
Serves this area from Greenbriar, VA (20 mi)#8Inova Health Care Services
Serves this area from Greenbriar, VA (20 mi)#9Inova Schar Cancer Institute - Fair Oaks
Serves this area from Greenbriar, VA (20 mi)#10Nephrology Associates Of Northern Virginia
Serves this area from Greenbriar, VA (20 mi)
20 more providers serving this area
- Carient Heart and Vascular, Bull Run, VA (21 mi)
- Carient Heart & Vascular - Manassas, Bull Run, VA (21 mi)
- Conquest Research, Wolf Trap, VA (22 mi)
- DelRicht Research, Wolf Trap, VA (22 mi)
- Forefront Dermatology, Wolf Trap, VA (22 mi)
- Velocity Clinical Research - Rockville, Travilah, MD (23 mi)
- George Mason University, George Mason, VA (23 mi)
- Lysosomal and Rare Disorders Research and Treatment Center (LDRTC), George Mason, VA (23 mi)
- Lysosomal and Rare Disorders Research and Treatment Center (LDRTC)- Site Number : 8400004, George Mason, VA (23 mi)
- Lysosomal Rare Disorders Research and Treatment Center, George Mason, VA (23 mi)
- Lysosomal & Rare Disorders Research & Treatment Center, Inc, George Mason, VA (23 mi)
- O & O Alpan- Site Number : 840025, George Mason, VA (23 mi)
- Maryland Oncology Hematology, P.A., Germantown, MD (23 mi)
- Kaiser Permanente Tysons Corner Medical Center, McLean, VA (24 mi)
- CBH Health, Gaithersburg, MD (24 mi)
- Cenexel CBH (CBH Health), Gaithersburg, MD (24 mi)
- Adventist HealthCare Shady Grove Medical Center, Rockville, MD (25 mi)
- Aesthetic and Dermatology Center, Rockville, MD (25 mi)
- Arthritis and Rheumatism Associates, Rockville, MD (25 mi)
- DermAssociates, LLC, Rockville, MD (25 mi)
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Frequently asked questions
How many clinical research sites serve Loudoun County?
We list 195 clinical research sites serving Loudoun County, VA: 3 based there and 192 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Loudoun County?
The top-ranked clinical research sites serving Loudoun County, VA are Emeritas Research Group, Inova Loudoun Hospital, Virginia Cancer Specialists PC, Carient Heart and Vascular LLC-Reston and Virginia Cancer Specialists, PC. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Loudoun County are verified against official records?
10 of the top 10 match an active official record: Emeritas Research Group (ClinicalTrials.gov), Inova Loudoun Hospital (ClinicalTrials.gov), Virginia Cancer Specialists PC (ClinicalTrials.gov), Carient Heart and Vascular LLC-Reston (ClinicalTrials.gov) and Virginia Cancer Specialists, PC (ClinicalTrials.gov), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
How do sponsors judge a research site?
Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Communities served
Leesburg, Ashburn, South Riding, Sterling, Brambleton, Stone Ridge, Broadlands, Lansdowne, Cascades, Sugarland Run, Loudoun Valley Estates, Lowes Island, Countryside, Belmont, Purcellville, Dulles Town Center, Moorefield, University Center, Lovettsville, Oak Grove, Arcola, Goose Creek Village, One Loudoun, Middleburg, Round Hill, Hamilton, Kincora, Waterford, Hillsboro, Aldie