#11401, University of Washington Positive Research CRS
Based in Seattle, WA
Clinical Research Sites in King County, WA
The top-ranked clinical research sites serving King County, WA are 1401, University of Washington Positive Research CRS, AIMS Institute and All4Cure. We list 245 clinical research sites serving King County, WA. 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 King County, WA. 245 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 King County
#2AIMS Institute
Based in Seattle, WA#3All4Cure
Based in Seattle, WA#4Benaroya Research Institute
Based in Seattle, WA#5Benaroya Research Institute at Virginia Mason
Based in Seattle, WA#6CCOP - Virginia Mason Research Center
Based in Seattle, WA#7Childrens Hospital and Regional Medical Center
Based in Seattle, WA#8Children's Hospital and Regional Medical Center - Seattle
Based in Seattle, WA#9Eastside Research Associates
Based in Redmond, WA#10Eastside Research Associates Health Research
Based in Redmond, WA
20 more providers serving this area
- ERA Health Research, Redmond, WA
- Evergreen Health, Kirkland, WA
- EvergreenHealth, Kirkland, WA
- EvergreenHealth Investigational Drug Services, Kirkland, WA
- EvergreenHealth Medical Center, Kirkland, WA
- Evergreen Health Multiple Sclerosis Center, Kirkland, WA
- EvergreenHealth Pain Care, Kirkland, WA
- EvergreenHealth Research Department, Kirkland, WA
- Evergreen MS Center, Kirkland, WA
- FHCC at EvergreenHealth, Kirkland, WA
- FHCC at Northwest Hospital, Shoreline, WA
- FHCC Overlake, Bellevue, WA
- FHCC South Lake Union, Seattle, WA
- Fred Hutch, Seattle, WA
- Fred Hutch Cancer Center, Seattle, WA
- Fred Hutch Cancer Research, Seattle, WA
- Fred Hutchinson Cancer Center, Seattle, WA
- Fred Hutchinson Cancer Center - Seattle Cancer Care Alliance (SCCA) Location, Seattle, WA
- Fred Hutchinson Cancer Center/University of Washington, Seattle, WA
- Fred Hutchinson Cancer Research Center, Seattle, WA
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Frequently asked questions
How many clinical research sites serve King County?
We list 245 clinical research sites serving King County, WA: 173 based there and 72 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 King County?
The top-ranked clinical research sites serving King County, WA are 1401, University of Washington Positive Research CRS, AIMS Institute, All4Cure, Benaroya Research Institute and Benaroya Research Institute at Virginia Mason. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving King County are verified against official records?
10 of the top 10 match an active official record: 1401, University of Washington Positive Research CRS (ClinicalTrials.gov), AIMS Institute (ClinicalTrials.gov), All4Cure (ClinicalTrials.gov), Benaroya Research Institute (ClinicalTrials.gov) and Benaroya Research Institute at Virginia Mason (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 .
Cities in King County
Communities served
Issaquah, SeaTac, Des Moines, Maple Valley, Mercer Island, Kenmore, Cottage Lake, Union Hill-Novelty Hill, Tukwila, Covington, Fairwood, Bryn Mawr-Skyway, White Center, Woodinville, Snoqualmie, Lakeland North, Lake Forest Park, Enumclaw, Lakeland South, Newcastle, East Renton Highlands, Vashon, Lake Morton-Berrydale, Duvall, North Bend, Pacific, Black Diamond, Hobart, Normandy Park, Boulevard Park, Maple Heights-Lake Desire, Mirrormont, Lake Holm, Algona, Clyde Hill, Medina, Shadow Lake, Carnation, Riverbend, Fall City, Wilderness Rim, Ames Lake, Lake Marcel-Stillwater, Yarrow Point, Riverpoint, Ravensdale, Hunts Point, Beaux Arts Village, Baring, Skykomish