35 leading critical infrastructure operators in Austin (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	City of Austin austintexas.gov Local government managing city employees, providing public services, promoting transparency, innovation, and maintaining high quality of life standards.	Government Administration	🇺🇸 Austin	8,954	1839
2	Texas Department of Transportation txdot.gov Maintaining extensive road network, supporting aviation, rail, public transit, ensuring safety, reducing congestion, connecting communities across Texas.	Government Administration	🇺🇸 Austin	6,943	n/a
3	St. David's HealthCare wwwprod104-stdavids-sitecore-cloud.dpxmedcity.net Leading healthcare system in Central Texas with seven hospitals, recognized for quality care, community investment, and ethical practices as part of HCA Healthcare	Hospitals and Health Care	🇺🇸 Austin	4,323	n/a
4	Seton Healthcare Family seton.net Faith-based healthcare organization focused on innovation, delivering compassionate care to those in need Offers a variety of services and operates nationally	Hospitals and Health Care	🇺🇸 Austin	2,667	1902
5	Texas Department of State Health Services dshs.texas.gov Public health agency in Texas that promotes and protects the health of Texans and their communities through various programs and initiatives	Government Administration	🇺🇸 Austin	2,612	n/a
6	LCRA lcra.org A Texas-based organization providing essential services such as electric power generation, water management, public parks, and community development without state funding	Utilities	🇺🇸 Austin	2,192	1934
7	Texas Department of Aging and Disability Services hhs.texas.gov A healthcare system in Texas that includes state hospitals, state supported living centers, and services previously provided by the Department of Aging and Disability Services	Government Administration	🇺🇸 Austin	1,671	2017
8	Austin Energy austinenergy.com Providing affordable, reliable electric power to over 500,000 customers with strong focus on renewable energy and community engagement.	Utilities	🇺🇸 Austin	1,639	1895
9	Austin Regional Clinic: ARC austinregionalclinic.com A multispecialty medical group in Central Texas providing comprehensive healthcare services through 35 locations, focusing on convenience, quality, and patient satisfaction	Medical Practices	🇺🇸 Austin	1,408	1980
10	Recurrent Energy recurrentenergy.com A global leader in utility-scale solar and energy storage project development, ownership and operations, with industry experts and a strong geographic presence	Renewable Energy Power Generation	🇺🇸 Austin	861	2006
11	Central Health centralhealth.net A public hospital district in Travis County, providing high-quality, equitable healthcare for low-income residents through community empowerment and healthcare system improvement	Hospitals and Health Care	🇺🇸 Austin	850	2004
12	St. David's North Austin Medical Center stdavids.com Multi-specialty hospital in Texas with 360+ beds, offering services such as emergency care, transplant center, robotic surgery, and heart care Part of a large healthcare system in Texas	Hospitals and Health Care	🇺🇸 Austin	785	n/a
13	UFCU ufcu.org Member-owned credit union in Central Texas, prioritizing financial health in communities with a focus on education funding, job access, affordable housing, and diversity	Financial Services	🇺🇸 Austin	722	1936
14	CapMetro capmetro.org Public transportation provider serving Austin region with buses, rail, shuttles, and accessibility services, focusing on community connection and future growth.	Urban Transit Services	🇺🇸 Austin	698	1985
15	CommUnityCare Health Centers communitycaretx.org A non-profit organization providing primary care services to the medically underserved in Travis County and central Texas for over 30 years	Hospitals and Health Care	🇺🇸 Austin	646	1971
16	Guaranty Bank guarantybank.com A leading financial institution with $16 billion in assets, serving over 300,000 families with banking services, real estate construction loans, and financing for middle-market businesses	Banking	🇺🇸 Austin	644	1988
17	DELL CHILDRENS MEDICAL CENTER OF CENTRAL TEXAS A hospital in Austin, Texas, providing medical care for children in Central Texas	Hospitals and Health Care	🇺🇸 Austin	524	n/a
18	Austin Water austintexas.gov Providing safe, reliable, high-quality water services to over 1 million people in Austin, drawing from the Colorado River, with wastewater treatment and reclamation	Utilities	🇺🇸 Austin	499	1902
19	Texas Gas Service texasgasservice.com A leading natural gas distribution company in Texas, serving over 695,000 customers with safe, clean, and reliable natural gas services	Utilities	🇺🇸 Austin	465	1929
20	Heart Hospital of Austin stdavids.com A leading cardiovascular center in Austin, Texas, offering specialized care, advanced facilities, and emergency services as part of a reputable healthcare system	Hospitals and Health Care	🇺🇸 Austin	434	n/a
21	Austin State Hospital dshs.texas.gov A historic psychiatric facility in Central Texas providing innovative care and support for individuals with acute psychiatric illness for community reintegration	Mental Health Care	🇺🇸 Austin	430	1856
22	Farm Credit Bank of Texas farmcreditbank.com A leading source of credit and financial services for rural Americans, operating in the best interests of customers through a cooperative structure	Banking	🇺🇸 Austin	419	1917
23	The Austin Diagnostic Clinic adclinic.com Providing multispecialty and primary care services to Austin and neighboring areas for nearly 70 years	Hospitals and Health Care	🇺🇸 Austin	393	1952
24	Base Power Company basepowercompany.com Modernizing the aging power grid with a nationwide network of distributed batteries to strengthen infrastructure and reduce energy costs.	Energy Technology	🇺🇸 Austin	393	2023
25	Austin-Travis County EMS atcems.org This organization provides emergency medical services, focuses on improving community health and safety, and prioritizes the well-being of its staff	Government Administration	🇺🇸 Austin	372	1976
26	A+ Federal Credit Union aplusfcu.org A financial institution in Austin, Texas dedicated to helping members achieve their dreams through exceptional service and financial partnerships	Financial Services	🇺🇸 Austin	360	1949
27	ZVRS zpbettertogether.com This company offers top-of-the-line videophone technology with certified interpreters and exclusive features, setting the industry standard for VRS providers	Telecommunications	🇺🇸 Austin	353	2006
28	WhiteWater whitewatermidstream.com An Austin-based infrastructure company founded in 2016, WhiteWater partners with private equity funds to reach final investment decisions on greenfield development projects worth $8 billion	Oil and Gas	🇺🇸 Austin	325	2016
29	ST DAVID'S SOUTH AUSTIN MEDICAL CENTER stdavids.com A medical practice located in Austin, Texas, offering a range of services to patients in need of medical care	Medical Practices	🇺🇸 Austin	311	n/a
30	Austin-Bergstrom International Airport (AUS)austintexas.gov An airport in Central Texas known for live music, local cuisine, and embracing uniqueness	Airlines and Aviation	🇺🇸 Austin	225	1999
31	We Are Blood weareblood.org A company that has been connecting Central Texans since 1951 to provide and protect the community blood supply, ensuring access to life-saving blood	Hospitals and Health Care	🇺🇸 Austin	182	1951
32	Austin Telco Federal Credit Union atfcu.org A member-owned financial cooperative offering a variety of products and services including mortgages, loans, savings accounts, and more to the Austin area community	Financial Services	🇺🇸 Austin	181	1941
33	Statoil Gulf Services equinor.com An international energy company with operations in 35 countries, focusing on responsible energy production, technology innovation, and global market presence	Oil and Gas	🇺🇸 Austin	34	n/a
34	InterFast Telecom interfasttelecom.com Specializing in telecommunications, the company focuses on the broadband sector to meet the growing demand for higher speeds and bandwidth	Telecommunications	🇺🇸 Austin	25	2015
35	LoneStar Airport Holdings, LLC flyaustin.com A private organization developing, managing, and operating airport terminal buildings, with a focus on the South Terminal at Austin-Bergstrom International Airport	Aviation and Aerospace Component Manufacturing	🇺🇸 Austin	1	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.

35 leading critical infrastructure operators in Austin

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