| # | Company | Employees |
|---|---|---|
| 1 |
Alaska Airlinesalaskaair.com
Passenger airline providing exceptional service through dedicated employees, focusing on safety, customer care, and community engagement. |
13,396 |
| 2 |
City of Seattleseattle.gov
Providing diverse public services across multiple departments to support community well-being, infrastructure, and inclusive city development. |
10,924 |
| 3 |
Seattle Children'sseattlechildrens.org
Providing compassionate pediatric care, conducting breakthrough research, and supporting families to ensure children receive hope, care, and cures. |
8,756 |
| 4 |
Swedishprovidence.org
A powerful network of skilled physicians, care centers, research and treatments offering world-class care in the Puget Sound region |
8,501 |
| 5 |
Group Healthghc.org
Healthcare provider serving over 11 million members in eight states and DC, including 651,000 from Group Health Cooperative in Washington |
4,556 |
| 6 |
UW Medicineuwmedicine.org
Integrated health system combining clinical care, research, and education to provide specialized and primary healthcare across multiple states. |
4,344 |
| 7 |
Harborview Medical Centeruwmedicine.org
Founded in 1877 as a six-bed hospital, now a leading academic medical center overlooking Puget Sound offering advanced medical care |
3,757 |
| 8 |
University of Washington Medical Centeruwmedicine.org
A healthcare facility providing innovative, high-quality patient care with expanded services in oncology, radiology, and Neonatal Intensive Care |
3,167 |
| 9 |
Port of Seattleportseattle.org
Ownership and operation of airport, fishing terminal, marinas, cruise and cargo terminals, real estate, supporting regional jobs and economic growth. |
2,074 |
| 10 |
Horizon Airhorizonair.jobs
A regional airline operating as the carrier of Alaska Airlines, with a fleet of Embraer 175 jet aircraft serving around 50 West Coast cities |
2,074 |
| 11 |
Sound Transitsoundtransit.org
Planning, building, operating regional transit systems to provide alternatives to traffic and accommodate population growth in Central Puget Sound. |
1,825 |
| 12 |
Emeritusbrookdale.com
Providing senior living solutions and enriching lives through comfortable environments, nutritious meals, stimulating activities, and compassionate care, now part of Brookdaleยฎ Senior Living family |
1,822 |
| 13 |
WaFd Bankwafdbank.com
A long-standing national bank dedicated to building healthy communities by providing straightforward banking solutions for clients since 1917 |
1,405 |
| 14 |
Northwest Hospital & Medical Centeruwmedicine.org
A nonprofit community hospital offering comprehensive medical services, pioneering treatments, specialized cancer care, award-winning neurosciences programs, emergency services, and community health education |
1,300 |
| 15 |
SSA Marinessamarine.com
Global logistics company founded in 1949, with operations on five continents, offering advanced facilities and transportation solutions to improve customer experience and accelerate global business growth |
1,250 |
| 16 |
Seattle City Lightseattle.gov
This company is a large publicly owned utility providing affordable, reliable, and environmentally responsible power to homes and businesses in Seattle and surrounding areas |
1,187 |
| 17 |
Sea Mar Community Health Centersseamar.org
A community-based organization providing quality health, housing, educational, and cultural services to diverse communities in Washington state |
1,174 |
| 18 |
HomeStreet Bankhomestreet.com
A community bank offering a full range of financial services focused on building long-term relationships, supporting communities, and promoting housing |
982 |
| 19 |
The Polyclinicoptum.com
A leading independent multi-specialty clinic in the Puget Sound area, providing high-quality, personalized care with over 170 physicians |
942 |
| 20 |
Bloodworks Northwestbloodworksnw.org
Nonprofit organization advancing transfusion medicine, patient care, and research in the Pacific Northwest through blood donations and tissue support |
926 |
| 21 |
Public Health โ Seattle & King Countykingcounty.gov
Hospital & health care company located in Seattle, WA, focusing on public health initiatives and services for the community |
873 |
| 22 |
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 |
| 23 |
Pacific Medical Centerspacificmedicalcenters.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 |
694 |
| 24 |
Liberty Mutual Suretyโขbusiness.libertymutual.com
A global provider of surety and guarantee solutions for construction companies and corporations, operating in over 60 countries with strong financial credit ratings |
656 |
| 25 |
Seattle Public Utilitiesseattle.gov
The company partners with the community to manage water and waste resources equitably, promoting a healthy environment and economy for future generations |
625 |
| 26 |
Foss Maritime Companyfoss.com
This company provides marine transportation and logistics services, offering safe and innovative solutions for transportation challenges and harbor jobs worldwide |
555 |
| 27 |
King County Department of Natural Resources and Parkskingcounty.gov
The company works to support sustainable communities and protect the environment through regional parks, water protection, waste management, and environmental stewardship |
516 |
| 28 |
Neighborcare Healthneighborcare.org
Providing comprehensive primary medical, dental, and mental health care services to underserved communities in the Seattle area without turning anyone away |
509 |
| 29 |
Centerline Logistics Corporationcenterlinelogistics.com
A leading provider of marine transportation services on the West Coast, New York Harbor, and the US Gulf Coast, specializing in petroleum products, ship assist, and general cargo services |
432 |
| 30 |
King County Sheriff's Officekingcounty.gov
Providing public safety services to 500,000 community members in unincorporated King County and sixteen contract-city and transit partners |
371 |
| 31 |
Seattle Department of Transportationseattle.gov
A leading municipal transportation agency in Seattle, dedicated to creating an equitable, sustainable, and vibrant city through maintenance, operations, and expansion of transportation networks |
348 |
| 32 |
Lyndenlynden.com
The company offers transportation and logistics solutions in various regions, including Alaska and Canada, allowing customers to ship via air, land, or sea |
299 |
| 33 |
Northland Communicationsvyvebroadband.com
A leading technology provider offering advanced fiber optic services and solutions with a focus on innovation, customer service, and community support |
212 |
| 34 |
Ceres Terminalsssamarine.com
A global enterprise with over 260 locations worldwide, specializing in cargo handling operations and providing technologically advanced facilities for efficient commerce movement |
185 |
| 35 |
Lynden Transportlynden.com
A multi-mode carrier in Alaska since 1954, offering scheduled road service, barge and ship transport across the state and globally |
182 |
| 36 |
Summit Power Groupsummitpower.com
Project development company specializing in high-efficiency natural gas, carbon capture, and utility-scale solar and wind power projects with extensive experience in the energy industry |
77 |
| 37 |
Fortune Bankfortunebankwa.com
The company offers personalized banking services for individuals and businesses, with a dedicated team, local decision-making, and a strong capital base |
14 |
Turn this list into pipeline
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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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