#1Allergy and Asthma Consultants
Based in Redwood City, CA
Clinical Research Sites in San Mateo County, CA
The top-ranked clinical research sites serving San Mateo County, CA are Allergy and Asthma Consultants, Kaiser Permanente Cancer Treatment Center and Kaiser Permanente- Marshall Medical Offices. We list 347 clinical research sites serving San Mateo County, CA. 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 San Mateo County, CA. 347 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 San Mateo County
#2Kaiser Permanente Cancer Treatment Center
Based in South San Francisco, CA#3Kaiser Permanente- Marshall Medical Offices
Based in Redwood City, CA#4Kaiser Permanente-Redwood City
Based in Redwood City, CA#5Kaiser Permanente-South San Francisco
Based in South San Francisco, CA#6Kaiser Permanente - South San Francisco Medical Center
Based in South San Francisco, CA#7Mills Health Center
Based in San Mateo, CA#8Mills Peninsula Health Services
Based in Hillsborough, CA#9Mills-Peninsula Medical Center
Based in Hillsborough, CA#10Natera Inc
Based in San Carlos, CA
20 more providers serving this area
- Outpatient Surgery Center/Stanford Spine Clinic, Redwood City, CA
- Peninsula Medical Center, Hillsborough, CA
- Sequoia Hospital, Woodside, CA
- Stanford, Redwood City, CA
- Stanford Center for Sleep Sciences and Medicine, Redwood City, CA
- Stanford Children's Health, Menlo Park, CA
- Stanford Digestive Health Clinic, Redwood City, CA
- Stanford Health Care, Redwood City, CA
- Stanford Medicine Outpatient Center, Redwood City, CA
- Stanford Pain Management Center, Redwood City, CA
- Stanford University, Redwood City, CA
- Stanford University Medical Center, Redwood City, CA
- UCSF Cancer Center - San Mateo, San Mateo, CA
- Vera Therapeutics, Brisbane, CA
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford, CA (11 mi)
- Leland Stanford Junior University, Stanford, CA (11 mi)
- Lucile Packard Children's Hospital, Stanford, CA (11 mi)
- Michele Berk, Stanford, CA (11 mi)
- Stanford, Stanford, CA (11 mi)
- Stanford Cancer Center, Stanford, CA (11 mi)
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Frequently asked questions
How many clinical research sites serve San Mateo County?
We list 347 clinical research sites serving San Mateo County, CA: 24 based there and 323 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 San Mateo County?
The top-ranked clinical research sites serving San Mateo County, CA are Allergy and Asthma Consultants, Kaiser Permanente Cancer Treatment Center, Kaiser Permanente- Marshall Medical Offices, Kaiser Permanente-Redwood City and Kaiser Permanente-South San Francisco. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving San Mateo County are verified against official records?
10 of the top 10 match an active official record: Allergy and Asthma Consultants (ClinicalTrials.gov), Kaiser Permanente Cancer Treatment Center (ClinicalTrials.gov), Kaiser Permanente- Marshall Medical Offices (ClinicalTrials.gov), Kaiser Permanente-Redwood City (ClinicalTrials.gov) and Kaiser Permanente-South San Francisco (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 San Mateo County
Communities served
San Bruno, Pacifica, Menlo Park, Foster City, Burlingame, San Carlos, East Palo Alto, Belmont, Millbrae, North Fair Oaks, Half Moon Bay, Hillsborough, Atherton, El Granada, Woodside, Brisbane, Broadmoor, Emerald Lake Hills, Portola Valley, West Menlo Park, Moss Beach, Montara, Highlands, Baywood Park, Ladera, Colma, La Honda, Pescadero, Loma Mar