Healthcare providers headquartered in Seattle (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	University of Washington washington.edu Public research university offering diverse educational programs, extensive campuses, cultural activities, and high-quality medical care, engaging with communities.	Higher Education	🇺🇸 Seattle	32,106	n/a
2	Seattle Children's seattlechildrens.org Providing compassionate pediatric care, conducting breakthrough research, and supporting families to ensure children receive hope, care, and cures.	Hospitals and Health Care	🇺🇸 Seattle	8,756	1907
3	Swedish providence.org A powerful network of skilled physicians, care centers, research and treatments offering world-class care in the Puget Sound region	Hospitals and Health Care	🇺🇸 Seattle	8,501	n/a
4	Fred Hutch fredhutch.org Nonprofit organization specializing in cancer research and treatment, collaborating with UW Medicine to provide comprehensive cancer care services.	Hospitals and Health Care	🇺🇸 Seattle	6,180	1975
5	Group Health ghc.org Healthcare provider serving over 11 million members in eight states and DC, including 651,000 from Group Health Cooperative in Washington	Hospitals and Health Care	🇺🇸 Seattle	4,556	1947
6	UW Medicine uwmedicine.org Integrated health system combining clinical care, research, and education to provide specialized and primary healthcare across multiple states.	Hospitals and Health Care	🇺🇸 Seattle	4,344	n/a
7	Harborview Medical Center uwmedicine.org Founded in 1877 as a six-bed hospital, now a leading academic medical center overlooking Puget Sound offering advanced medical care	Hospitals and Health Care	🇺🇸 Seattle	3,757	1877
8	University of Washington Medical Center uwmedicine.org A healthcare facility providing innovative, high-quality patient care with expanded services in oncology, radiology, and Neonatal Intensive Care	Hospitals and Health Care	🇺🇸 Seattle	3,167	1959
9	Catholic Community Services of Western Washington ccsww.org The organization provides a wide range of social services including housing, mental health, addiction recovery, family support, youth services, and elder care for vulnerable populations	Non-profit Organizations	🇺🇸 Seattle	2,270	1918
10	Emeritus brookdale.com Providing senior living solutions and enriching lives through comfortable environments, nutritious meals, stimulating activities, and compassionate care, now part of Brookdale® Senior Living family	Hospitals and Health Care	🇺🇸 Seattle	1,822	1993
11	Ro Health rohealth.com A healthcare staffing agency prioritizing provider and client needs with innovative technology for efficient and quality patient care solutions	Staffing and Recruiting	🇺🇸 Seattle	1,354	2013
12	Northwest Hospital & Medical Center uwmedicine.org A nonprofit community hospital offering comprehensive medical services, pioneering treatments, specialized cancer care, award-winning neurosciences programs, emergency services, and community health education	Hospitals and Health Care	🇺🇸 Seattle	1,300	1960
13	Sea Mar Community Health Centers seamar.org A community-based organization providing quality health, housing, educational, and cultural services to diverse communities in Washington state	Hospitals and Health Care	🇺🇸 Seattle	1,174	1978
14	The Polyclinic optum.com A leading independent multi-specialty clinic in the Puget Sound area, providing high-quality, personalized care with over 170 physicians	Hospitals and Health Care	🇺🇸 Seattle	942	1917
15	Bloodworks Northwest bloodworksnw.org Nonprofit organization advancing transfusion medicine, patient care, and research in the Pacific Northwest through blood donations and tissue support	Hospitals and Health Care	🇺🇸 Seattle	926	1944
16	Proliance Surgeons proliancesurgeons.com A team of experienced specialists and surgeons offering advanced medical care in various fields such as Orthopedics, ENT, general surgery, and OB/GYN	Medical Practices	🇺🇸 Seattle	921	1993
17	Public Health – Seattle & King County kingcounty.gov Hospital & health care company located in Seattle, WA, focusing on public health initiatives and services for the community	Hospitals and Health Care	🇺🇸 Seattle	873	n/a
18	Seattle Cancer Care Alliance fredhutch.org merger of Fred Hutchinson Cancer Research Center and Seattle Cancer Care Alliance into Fred Hutchinson Cancer Center for cancer research and care	Hospitals and Health Care	🇺🇸 Seattle	782	2001
19	Pacific Medical Centers pacificmedicalcenters.org Private, not-for-profit health care network in Puget Sound with 9 clinics, 175 providers, cutting-edge technology, and patient-focused care for diverse population	Hospitals and Health Care	🇺🇸 Seattle	694	n/a
20	Pioneer Human Services pioneerhumanservices.org A nonprofit social enterprise in Washington state that supports justice-involved individuals with housing, healthcare, employment, and job training programs to reduce societal challenges	Non-profit Organizations	🇺🇸 Seattle	678	1963
21	Bartell Drugs content.riteaid.com Established in 1890, this company supports health needs in the Puget Sound Region through over 60 unique locations as a trusted neighborhood wellness destination	Retail	🇺🇸 Seattle	632	1890
22	DESC (Downtown Emergency Service Center)desc.org DESC works to end homelessness by providing comprehensive services and housing to vulnerable individuals with mental illnesses and substance use disorders in the Pacific Northwest	Mental Health Care	🇺🇸 Seattle	628	1979
23	Leisure Care leisurecare.com The company reimagines senior living to provide fulfilling opportunities for older adults and their caregivers, focusing on a new chapter in life	Hospitality	🇺🇸 Seattle	559	1976
24	Mindful Therapy Group mindfultherapygroup.com A large group of mental health professionals in Washington and Oregon offering in-person and telehealth services for children, adolescents, and adults	Individual and Family Services	🇺🇸 Seattle	539	2011
25	Skyline skylineseattle.org A luxury retirement community in downtown Seattle offering upscale apartments, stunning views, amenities like a pool and fitness center, and vibrant urban living	Hospitality	🇺🇸 Seattle	519	n/a
26	Neighborcare Health neighborcare.org Providing comprehensive primary medical, dental, and mental health care services to underserved communities in the Seattle area without turning anyone away	Hospitals and Health Care	🇺🇸 Seattle	509	1968
27	Era Living eraliving.com This company provides retirement living communities with enriching activities, independent living, assisted living, and memory care tailored to residents' lifestyles	Hospitals and Health Care	🇺🇸 Seattle	379	1987
28	International Community Health Services ichs.com A nonprofit community health center in Seattle providing affordable services to Asian, Native Hawaiian, and Pacific Islander communities, as well as underserved populations	Hospitals and Health Care	🇺🇸 Seattle	333	1973
29	Therapeutic Health Services ths-wa.org Providing comprehensive treatment for substance abuse and mental illness through intervention, counseling, and prevention to help individuals and families lead healthy lives	Mental Health Care	🇺🇸 Seattle	205	1972
30	Seattle Reproductive Medicine seattlefertility.com A leading team of fertility specialists offering a wide range of services including infertility testing, treatment, IVF, donor egg, sperm, and more at multiple locations	Hospitals and Health Care	🇺🇸 Seattle	182	2004
31	Green Lake Dental Care greenlakedentalcare.com A Seattle-based dental care provider with over 25 years of experience, offering a wide range of services and utilizing the latest technology and techniques	Medical Practices	🇺🇸 Seattle	7	n/a

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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

Healthcare providers headquartered in Seattle

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