| # | Company | Employees |
|---|---|---|
| 1 |
University of Washingtonwashington.edu
Public research university offering diverse educational programs, extensive campuses, cultural activities, and high-quality medical care, engaging with communities. |
32,106 |
| 2 |
Fred Hutchfredhutch.org
Nonprofit organization specializing in cancer research and treatment, collaborating with UW Medicine to provide comprehensive cancer care services. |
6,180 |
| 3 |
Seattle Public Schoolsseattleschools.org
Largest K-12 school district in Washington, serving over 54,000 students with 8,000 staff focused on academic achievement. |
5,456 |
| 4 |
UW Medicineuwmedicine.org
Integrated health system combining clinical care, research, and education to provide specialized and primary healthcare across multiple states. |
4,344 |
| 5 |
Seattle Universityseattleu.edu
A Jesuit, Catholic university in Seattle offering values-based education, preparing students for leadership in tech and innovation with strong alumni connections |
3,512 |
| 6 |
University of Washington - School of Medicineuwmedicine.org
A medical school focused on training primary-care physicians and advancing medical knowledge through research in the WWAMI region |
1,788 |
| 7 |
Seattle Pacific Universityspu.edu
A Christian university in a thriving city, equipping undergraduate and graduate students to shape the future Alumni network available for connections |
1,347 |
| 8 |
RevOps Co-oprevopscoop.com
A community for revenue operations professionals offering expertise, content, education, and networking events to support members in the field |
1,333 |
| 9 |
Seattle Central Collegeseattlecentral.edu
Seattle Central College, located in Capitol Hill, provides higher education, workforce training, and leadership development, serving over 500,000 students since 1966 |
1,068 |
| 10 |
City University of Seattlecityu.edu
City University offers flexible online and onsite programs for working adults and transfer students, taught by industry professionals Ranked among top programs nationally |
824 |
| 11 |
North Seattle Collegenorthseattle.edu
An established college offering diverse learning opportunities, advising services, small classes, innovative programs, e-learning options, and degree programs, including a Bachelor of Applied Science |
820 |
| 12 |
UW Foster School of Businessuw.edu
Educates innovative leaders through diverse programs, strong industry connections, and access to Seattle's vibrant business ecosystem for impactful careers. |
808 |
| 13 |
Seattle Cancer Care Alliancefredhutch.org
merger of Fred Hutchinson Cancer Research Center and Seattle Cancer Care Alliance into Fred Hutchinson Cancer Center for cancer research and care |
782 |
| 14 |
Evergreen Goodwill of Northwest Washingtonevergreengoodwill.org
Nonprofit organization helping low-income individuals access free job training and education programs to achieve self-sufficiency through donations and sales |
691 |
| 15 |
Paul G. Allen School of Computer Science & Engineeringcs.washington.edu
Educating future innovators and addressing humanity's challenges through computer science and engineering at a renowned academic institution |
687 |
| 16 |
Lakeside Schoollakesideschool.org
Lakeside School offers a rigorous academic program, nurturing students to develop creative thinking, healthy bodies, ethical values, global leadership, and community engagement |
681 |
| 17 |
South Seattle Collegesouthseattle.edu
A community college offering diverse educational opportunities on an 87-acre hilltop with panoramic city views, emphasizing career readiness and sustainability training |
647 |
| 18 |
Cloud Security Alliancecloudsecurityalliance.org
A non-profit organization promoting best practices for cloud security, providing education on cloud computing security, and promoting industry collaboration |
536 |
| 19 |
The Seattle Public Libraryspl.org
Providing access to information, fostering community connections, and enriching lives through resources and ideas at local library branches. |
495 |
| 20 |
University of Washington Information Schoolischool.uw.edu
A renowned information school offering programs in informatics, library science, and information management to prepare professionals for various fields |
426 |
| 21 |
Bezos Academybezosacademy.org
A non-profit organization establishing tuition-free Montessori-inspired preschools in underserved communities to provide quality early childhood education |
424 |
| 22 |
Seattle Collegesseattlecolleges.edu
A multi-college district in Seattle serving over 45,000 students at three campuses and specialized training centers, focused on diversity and student success |
416 |
| 23 |
Antioch University Seattle
Offering diverse undergraduate, graduate, and doctoral programs with a focus on social justice, community service, and lifelong learning in Seattle |
411 |
| 24 |
Seattle University School of Lawlaw.seattleu.edu
A law school in Seattle known for its diverse student body, focused on academic excellence and promoting justice through education |
391 |
| 25 | 387 | |
| 26 |
Neighborhood Housenhwa.org
The organization builds community, increases access to housing, health, education, and economic opportunities, striving for equity, integrity, and sustainability to create thriving, inclusive communities |
379 |
| 27 |
University of Washington School of Lawlaw.uw.edu
A top-ranked public law school located in Seattle, WA, providing high-quality legal education and training for future professionals |
374 |
| 28 |
International Training and Education Center for Health (I-TECH)go2itech.org
Global network supporting health workforce development and national health systems in resource-limited countries through partnerships with local stakeholders and organizations worldwide |
370 |
| 29 |
Seattle Aquariumseattleaquarium.org
A nonprofit aquarium in Seattle focused on marine conservation education, accredited by AZA, hosting millions of visitors and school children |
333 |
| 30 |
University of Washington School of Public Healthsph.washington.edu
Education, research, and service in public health, producing graduates who transform communities and lead health organizations nationwide. |
331 |
| 31 |
The Museum of Flightmuseumofflight.org
The company inspires and celebrates the limitless possibilities of flight, while promoting diversity, inclusion, equity, and cultural responsiveness in all aspects of its operations |
325 |
| 32 |
Treehousetreehouseforkids.org
Treehouse empowers foster youth by providing support throughout their childhood, education, and transition to young adulthood, transforming systems to create opportunities for success |
322 |
| 33 |
Seattle Academyseattleacademy.org
A dynamic educational community that encourages students to question, imagine, and create in order to boldly contribute to a changing world |
313 |
| 34 |
Westside Schoolwestsideschool.org
A premier independent elementary and middle school in West Seattle focusing on nurturing individual talents, critical thinking, and social skills |
284 |
| 35 |
Omprakashomprakash.org
The company connects social impact organizations with volunteers, donors, and classrooms worldwide to support their work and promote global learning |
256 |
| 36 |
SEIU 775 Benefits Groupseiu775benefitsgroup.org
The company partners with workers, employers, and industry stakeholders to provide training, health, retirement benefits, and job-matching services for home care workers |
202 |
| 37 |
Starweaverstarweaver.com
Empowering individuals and organizations through practical knowledge and skills for a rapidly transforming world, revolutionizing lives and careers through engaging learning experiences |
115 |
| 38 |
Communication Leadership at the University of Washingtoncommlead.uw.edu
Specialized master's program at University of Washington in Seattle, focusing on communication leadership for industry professionals, emphasizing positive change and impactful storytelling |
47 |
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How this list is built
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.
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- Healthcare providers in Seattle 31
- Hospitals and Health Care companies in Seattle 30
- Financial services firms in Seattle 29
- Technology, Information and Internet companies in Seattle 27
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The same list elsewhere in United States
- Education providers in California 952
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- Education providers in Texas 531
- Education providers in Pennsylvania 373
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- Education providers in Massachusetts 313
- Education providers in Florida 260
- Education providers in Virginia 224
- Education providers in Ohio 223
- Education providers in Michigan 212
- Education providers in Georgia 209
- Education providers in North Carolina 208
- Education providers in New Jersey 190
- Education providers in Washington State 169
- Education providers in Alabama 164
- Education providers in Arizona 152
- Education providers in Maryland 151
- Education providers in Minnesota 149
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- Education providers in Missouri 130
- Education providers in Tennessee 125
- Education providers in Wisconsin 124
- Education providers in New York 284
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