30 leading critical infrastructure operators in Oregon (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Oregon Health & Science University ohsu.edu Research and education focused on disease understanding, treatment innovations, and training future health professionals across various medical fields.	Hospitals and Health Care	🇺🇸 Portland	17,535	1887
2	Legacy Health legacyhealth.org nonprofit organization providing primary, secondary, tertiary healthcare services across Portland, Vancouver metro, and mid-Willamette Valley areas	Hospitals and Health Care	🇺🇸 Portland	8,230	1989
3	City of Portland portland.gov Municipal government in Portland, Oregon responsible for fire, police, water supply, urban planning, transportation, parks, and environmental resource management for the community	Government Administration	🇺🇸 Portland	3,567	1851
4	Salem Health salemhealth.org Not-for-profit health system operating hospitals and clinics, serving multiple counties with a focus on quality patient care and community well-being.	Hospitals and Health Care	🇺🇸 Salem	3,153	1896
5	Umpqua Bank columbiabank.com Announcement of bank's official name change from Umpqua Bank to Columbia Bank, encouraging followers to stay updated on LinkedIn.	Banking	🇺🇸 Portland	3,027	1953
6	Portland General Electric portlandgeneral.com Providing reliable energy services, supporting community resilience, addressing climate change, and driving clean energy transformation in Oregon's evolving energy landscape.	Utilities	🇺🇸 Portland	2,961	1889
7	PacifiCorp pacificorp.com A leading western US energy services provider, PacifiCorp serves 2 million customers with renewable resources and a focus on a lower carbon future	Utilities	🇺🇸 Portland	2,951	1910
8	Samaritan Health Services samhealth.org A not-for-profit healthcare network offering innovative medicine and world-class quality to residents in the mid-Willamette Valley and Oregon Coast	Hospitals and Health Care	🇺🇸 Corvallis	2,833	1997
9	Bonneville Power Administration bpa.gov A federal nonprofit wholesale power marketer selling carbon-free electricity, operating a high-voltage transmission grid, and funding a large fish and wildlife program in the Northwest region	Utilities	🇺🇸 Portland	2,596	1937
10	Asante asante.org A healthcare organization in Oregon and California, providing high-quality medical services with compassion through various facilities and partnerships in the region	Hospitals and Health Care	🇺🇸 Medford	2,511	1995
11	Oregon Department of Transportation oregon.gov A diverse organization with over 4,500 employees ensuring safe and reliable transportation systems in Oregon through highways, rail, transit, and more	Government Administration	🇺🇸 Salem	1,938	n/a
12	Oregon Health Authority oregon.gov The Oregon Health Authority strives to improve access to quality, affordable health care and promote well-being through innovation and inclusion	Government Administration	🇺🇸 Salem	1,805	2011
13	TriMet trimet.org The company provides safe and reliable transportation services in the Portland area, focusing on building a stronger community and future	Urban Transit Services	🇺🇸 Portland	1,761	1969
14	First Tech Federal Credit Union firsttechfed.com Credit union serving over 700,000 members, including employees of major companies, providing financial services focused on member benefits.	Financial Services	🇺🇸 Hillsboro	1,751	1952
15	Home Federal Bank (now Bank of the Cascades)firstinterstatebank.com Financial institution merger completed, combining resources and services to enhance banking solutions and customer experience under new ownership.	Banking	🇺🇸 Bend	1,658	1920
16	St. Anthony Hospital sahpendleton.org A critical access hospital in Eastern Oregon dedicated to serving the healthcare needs of local communities	Hospitals and Health Care	🇺🇸 Pendleton	1,115	1902
17	NW Natural nwnatural.com Natural gas distribution company providing energy services to millions of customers across Oregon and Southwest Washington through modern and highly rated pipeline systems.	Utilities	🇺🇸 Portland	1,106	1859
18	Avangrid Renewables avangridren.com A leading renewable energy company based in Portland, building wind and solar projects across the United States with a focus on offshore wind development	Renewable Energy Semiconductor Manufacturing	🇺🇸 Portland	985	n/a
19	Marquis Companies marquiscompanies.com Family-owned senior living healthcare company providing person-centered care, post-acute rehab, assisted living, memory care, and more with a focus on employee development and leadership advancement	Hospitals and Health Care	🇺🇸 Milwaukie	829	n/a
20	OnPoint Community Credit Union onpointcu.com A community-owned financial institution offering personalized services, smart value, and direct financial solutions to over 522,000 loyal members for 85 years	Banking	🇺🇸 Portland	802	1932
21	Sky Lakes Medical Center linktr.ee Community-owned acute-care hospital providing inpatient, outpatient, specialty clinics, home health, cancer treatment, and family medicine services in Oregon and California.	Hospitals and Health Care	🇺🇸 Klamath Falls	788	1968
22	Community Care Partners ccpartners.com A network of urgent care centers spanning across seven states, offering accessible healthcare services to individuals in need	Hospitals and Health Care	🇺🇸 Eugene	785	n/a
23	Port of Portland portofportland.com Management of airports, marine terminals, and business parks to foster inclusive economic growth, job creation, and business support in the region.	Government Administration	🇺🇸 Portland	774	1891
24	Bay Area Hospital bayareahospital.org A regional hospital in Coos Bay, Oregon, dedicated to improving community health with a focus on patient care, wellness, and employee benefits	Hospitals and Health Care	🇺🇸 Coos Bay	764	1974
25	Adventist Health Portland adventisthealth.org A health care system with a medical center, clinics, and hospice services, focusing on whole-person care and inspired by a mission of love and hope	Hospitals and Health Care	🇺🇸 Portland	724	n/a
26	Columbia Memorial Hospital columbiamemorial.org A full-service critical access hospital in northwest Oregon, providing compassionate healthcare and community leadership since 1880	Hospitals and Health Care	🇺🇸 Astoria	714	1880
27	Tuality Healthcare tuality.org Healthcare provider in Hillsboro offering acute care services, health education classes, insurance plans, and urgent care clinics Partnered with OHSU for top-quality care	Hospitals and Health Care	🇺🇸 Hillsboro	653	1918
28	Central Oregon Truck Company centraloregontruck.com A flatbed trucking company with lightweight aluminum trailers, offering industry-leading driver programs, exceptional CSA scores, and recognition as a Best Fleet to Drive For	Truck Transportation	🇺🇸 Redmond	170	1992
29	Northern Wasco County People's Utility District nwascopud.org The company values public power traditions and strives to provide reliable, competitively-priced energy and related services through innovation and commitment	Utilities	🇺🇸 The Dalles	61	n/a
30	Wasco Electric Cooperative Inc wascoelectric.com A cooperative providing cost-effective energy solutions that prioritize safety, service, and reliability for their members	Utilities	🇺🇸 The Dalles	23	1939

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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 Oct 24, 2026.

30 leading critical infrastructure operators in Oregon

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