This selection of critical infrastructure operators in Nevada highlights a diverse economic landscape, featuring a mix of large public and private sector entities. Clark County provides comprehensive regional services, while HCA Far West Division and Renown Health are significant healthcare providers. Allegiant operates an airline connecting smaller cities to leisure destinations, and NV Energy is a major utility company.
The companies listed are predominantly large organizations, with several founded in the early to mid-20th century. A notable concentration of headquarters is in Las Vegas, which is home to eight of the fifteen largest operators, including Southwest Gas Corporation, Credit One Bank, and Las Vegas Valley Water District.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Clark Countyclarkcountynv.gov
Providing comprehensive regional services including public safety, infrastructure, health care, social services, and environmental compliance for millions. |
5,439 | |||
| 2 |
HCA Far West Divisioncareers.hcahealthcare.com
A network of hospitals in California and Nevada offering specialized medical services, advanced technology, and patient-focused care, with a commitment to growth and ethical practices |
5,138 | |||
| 3 |
Renown Healthrenown.org
Largest not-for-profit health network in northern Nevada providing quality care, advanced technology, modern facilities, and medical education. |
4,481 | |||
| 4 |
Allegiantallegiantair.com
Airline connecting small cities to leisure destinations with low fares, offering bundled travel products like hotels and car rentals. |
3,807 | |||
| 5 |
NV Energynvenergy.com
A Nevada-based energy holding company serving residents and tourists with a wide range of energy services and products Connect on social media |
2,114 | |||
| 6 |
Southwest Gas Corporationswgas.com
Engaged in purchasing, transporting, and distributing natural gas as the environmental fuel of choice to over two million customers in three states |
1,971 | |||
| 7 |
Credit One Bankcreditonebank.com
Providing diverse credit card options, high-yield savings, and certificates of deposit to support customers' financial growth and credit journeys. |
1,697 | |||
| 8 |
Nevada National Security Sitesnnss.gov
Support nuclear deterrent stewardship, emergency response training, nonproliferation efforts, national experiments, federal security collaborations, and environmental stewardship of Cold War legacy. |
1,652 | |||
| 9 |
Mission Support and Test Services, LLCnnss.gov
A team of experts managing and operating the Nevada National Security Site, supported by small business subcontractors OpEx Group LLC and VisX Corporation |
1,393 | |||
| 10 |
Ormat Technologies, Inc.ormat.com
A leading geothermal company focusing on renewable energy solutions, energy storage, and recovered energy generation with a global presence |
1,337 | |||
| 11 |
Carson Tahoe Healthcarsontahoe.com
Healthcare system in Nevada known for compassionate, professional care Recognized for employee satisfaction and ranked highly for nurse pay and benefits |
1,104 | |||
| 12 |
Nevada Department of Transportationdot.nv.gov
A transportation department responsible for planning, constructing, and maintaining Nevada's highways, bridges, and various transportation modes to enhance safety and economic development |
779 | |||
| 13 |
Southern Hills Hospital and Medical Centersunrisehealthinfo.com
Premier hospital in Las Vegas with a variety of services including emergency care, behavioral health, orthopedics, oncology, and more Part of HCA Healthcare |
773 | |||
| 14 |
Las Vegas Valley Water Districtlvvwd.com
A not-for-profit water utility providing water to over 1 million people in Southern Nevada, building and servicing the city's water delivery system |
748 | |||
| 15 |
MountainView Hospitalsunrisehealthinfo.com
A state-of-the-art medical facility in Las Vegas offering top-notch cardiovascular care, robotic surgery, bone marrow transplants, and medical education programs |
721 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Summerlin Hospital Medical Ctrsummerlinhospital.com
A hospital & health care company located in Las Vegas, NV, providing medical services and care to the community |
685 | |||
| 17 |
Nevada State Banknsbank.com
A local bank in Nevada offering personalized financial services to individuals and businesses, with a focus on community outreach and innovation |
640 | |||
| 18 |
The Valley Health Systemvalleyhealthsystemlv.com
The Valley Health System manages social media accounts for marketing purposes and provides integrated healthcare services to over two million people in Southern Nevada |
628 | |||
| 19 |
St. Rose Dominican Hospitalscommonspirit.org
Faith-based health system guided by core values, providing care to communities in Henderson and Las Vegas, with 3 hospitals and 4,000 employees |
588 | |||
| 20 |
Saint Mary's Health Networksaintmarysreno.com
Award-winning, 380-bed acute care hospital in Reno, offering a range of services including Women's and Children's services, Cancer Center, Cardiology program, and CyberKnife radiation delivery |
576 | |||
| 21 |
Harry Reid International Airportharryreidairport.com
A major international airport in Las Vegas, serving as a gateway for millions of visitors with 30 airlines offering nonstop flights to over 140 destinations worldwide |
424 | |||
| 22 |
Northern Nevada Health Systemnorthernnevadahealth.com
A healthcare system with two hospitals in Nevada providing quality care, advanced technology, and compassionate service to patients in need |
416 | |||
| 23 |
North Vista Hospitalnorthvistahospital.com
Offering a full spectrum of medical programs with skilled physicians, North Vista Hospital provides high-quality care in a friendly environment focused on patient comfort and well-being |
402 | |||
| 24 |
REMSA Healthremsahealth.com
A leading ground ambulance service provider in Northern Nevada offering 9-1-1 response, interfacility transport, disaster preparedness, tactical medical support, and public education |
353 | |||
| 25 |
Nevada Health Centersnevadahealthcenters.org
Provide healthcare services in Nevada for over 30 years, offering a sliding fee scale for uninsured patients Operates 18 clinics with medical, dental, and WIC services |
327 | |||
| 26 |
P3 Health Partnersp3hp.org
Physician-led healthcare company focused on patient-centered care and population health improvement, aiming to change delivery of healthcare for better outcomes |
273 | |||
| 27 |
HealthCare Partners Nevadahcpnv.com
A network of over 310 primary care physicians and 1,700 specialists providing high-quality healthcare services in various locations in Nevada |
215 | |||
| 28 |
Humboldt General Hospitalhghospital.org
A 67-bed medical center providing comprehensive care, surgical procedures, emergency services, skilled nursing, memory care, EMS, residency program, and community events |
184 | |||
| 29 |
Las Vegas Fire & Rescuelasvegasfire.org
An accredited Class One fire department in Las Vegas providing fire suppression, prevention, education programs, paramedic services, bomb squad, hazardous materials, and technical rescue services |
184 | |||
| 30 |
Truckee Meadows Water Authoritytmwa.com
A not-for-profit utility providing high-quality drinking water to over 385,000 residents through skilled workforce in water treatment and delivery |
124 | |||
| 31 |
Valley Electric Association, Inc.vea.coop
A member-owned electricity and communications cooperative providing high-speed internet, solar energy, and expanding broadband access to rural areas |
105 | |||
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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 11, 2026.
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- Hospitality companies in Nevada 50
- IT Services and IT Consulting companies in Nevada 47
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- Financial services firms in Nevada 37
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The same list elsewhere in United States
- Critical infrastructure operators in the United States 5,801
- Critical infrastructure operators in Texas 579
- Critical infrastructure operators in California 483
- Critical infrastructure operators in New York State 379
- Critical infrastructure operators in Florida 321
- Critical infrastructure operators in Illinois 241
- Critical infrastructure operators in Pennsylvania 225
- Critical infrastructure operators in Alabama 186
- Critical infrastructure operators in North Carolina 171
- Critical infrastructure operators in Massachusetts 165
- Critical infrastructure operators in Ohio 153
- Critical infrastructure operators in Michigan 150
- Critical infrastructure operators in Washington State 149
- Critical infrastructure operators in Colorado 137
- Critical infrastructure operators in Tennessee 132
- Critical infrastructure operators in Virginia 131
- Critical infrastructure operators in New Jersey 130
- Critical infrastructure operators in Indiana 129
- Critical infrastructure operators in Georgia 126
- Critical infrastructure operators in Missouri 120
- Critical infrastructure operators in Minnesota 115
- Critical infrastructure operators in Wisconsin 115
- Critical infrastructure operators in Houston 161
- Critical infrastructure operators in New York 139