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Top 83 critical infrastructure operators in Tennessee

Tamtam tracks 83 critical infrastructure operators headquartered in Tennessee. This list ranks all of them by number of employees on LinkedIn, led by FedEx, HCA Healthcare and Community Health Systems. Their median headcount is 1,259. Half of them were founded in 1976 or later. The most common headquarters are Nashville (20), Memphis (15) and Brentwood (10).

馃嚭馃嚫 Tennessee83 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
FedExfedex.com

A global leader in shipping, transportation, e-commerce, and business services, known for exceptional customer service and a focus on safety and ethics

Freight and Package Transportation 馃嚭馃嚫 Memphis 193,709 1973
2
HCA Healthcaredpxmedcity.net

A healthcare organization with 186 hospitals and 2,300 sites, focused on providing quality care, advancing science, and impacting communities positively

Hospitals and Health Care 馃嚭馃嚫 Nashville 150,409 n/a
3
Community Health Systemschs.net

Operating 70 acute-care hospitals and over 1,000 care sites including physician practices, urgent care, imaging, cancer, and surgery centers.

Hospitals and Health Care 馃嚭馃嚫 Franklin 24,930 n/a
4
Brookdalecareers.brookdale.com

Providing compassionate senior living services focused on family-like relationships, integrity, employee well-being, and meaningful career growth opportunities.

Hospitals and Health Care 馃嚭馃嚫 Brentwood 20,786 1978
5
Ardent Healthardenthealth.com

Provider of healthcare services operating hospitals and care sites, focusing on accessibility, innovation, and community-based medical care across multiple states.

Hospitals and Health Care 馃嚭馃嚫 Nashville 14,119 n/a
6
FedEx Freightfedexfreight.com

This company provides updates, product and service information, operating news, and regular content for its customers and followers Join the conversation!

Truck Transportation 馃嚭馃嚫 Memphis 11,751 2001
7
Tennessee Valley Authoritytva.com

A self-financing government-owned power provider focusing on delivering affordable electricity, environmental stewardship, and economic development in the Tennessee Valley region

Utilities 馃嚭馃嚫 Knoxville 8,616 1933
8
First Horizon Bankfirsthorizon.com

A company founded in 1864 in Memphis with a commitment to providing excellent service and financial integrity to customers

Financial Services 馃嚭馃嚫 Memphis 7,899 1864
9
Baptist Memorial Health Carebaptistonline.org

One of the largest not-for-profit health care systems offering a full continuum of care, with hospitals, physicians, home care, and education services

Hospitals and Health Care 馃嚭馃嚫 Memphis 7,261 1912
10
Methodist Le Bonheur Healthcaremethodisthealth.org

Providing exceptional, cost-effective patient and family-centered healthcare services aligned with United Methodist Church health ministries and social principles.

Hospitals and Health Care 馃嚭馃嚫 Memphis 6,177 1918
11
Lifepoint Health庐lifepointhealth.net

A leading healthcare provider offering diversified healthcare services through a network of hospitals, rehabilitation centers, and care facilities, focused on community health and innovation

Hospitals and Health Care 馃嚭馃嚫 Brentwood 5,999 1999
12
Covenant Healthcovenanthealth.com

A not-for-profit healthcare enterprise in Tennessee serving 25 counties with hospitals, outpatient facilities, homecare services, and affiliated medical practices

Hospitals and Health Care 馃嚭馃嚫 Knoxville 5,109 1997
13
Ballad Healthballadhealth.org

Integrated healthcare system operating 21 hospitals, including tertiary centers and children's hospital, providing a wide range of medical services in multiple states

Hospitals and Health Care 馃嚭馃嚫 Johnson City 4,859 n/a
14
FedEx Logisticscareers.fedex.com

Global logistics company offering air and ocean freight forwarding, supply chain solutions, customs brokerage, and trade management tools from Memphis headquarters Equal opportunity employer

Truck Transportation 馃嚭馃嚫 Memphis 4,772 n/a
15
Erlangererlanger.org

Non-profit academic medical center providing Level-One trauma, tertiary care, and specialized pediatric services across a four-state region.

Hospitals and Health Care 馃嚭馃嚫 Chattanooga 4,728 1889
16
Premise Healthpremisehealth.com

Operates wellness centers nationwide, providing in-person and digital healthcare services to large organizations and their members, aiming for personalized and accessible care.

Hospitals and Health Care 馃嚭馃嚫 Brentwood 4,293 1975
17
Forward Air Corporationforwardair.com

An industry leader offering expedited ground transportation services, including linehaul, pick-up/delivery, intermodal drayage, pool distribution, and temperature-controlled logistics

Truck Transportation 馃嚭馃嚫 Greeneville 4,163 1993
18
UT Medicalutmedicalcenter.org

A leading academic medical center in Knoxville, TN, offering specialized care in trauma, heart, stroke, cardiac, and neonatal services with a commitment to excellence and innovation

Hospitals and Health Care 馃嚭馃嚫 Knoxville 4,161 1956
19
Envisionenvisionhealth.com

Provides physician and advanced practice provider services in emergency, hospitalist medicine, anesthesiology, radiology, and neonatology nationwide with local community focus.

Hospitals and Health Care 馃嚭馃嚫 Nashville 3,669 1977
20
Centerstonecenterstone.org

Nonprofit health system providing mental health and substance use disorder treatments, including outpatient clinics, residential programs, school-based services, telehealth, and inpatient hospital care

Mental Health Care 馃嚭馃嚫 Nashville 3,576 n/a
21
U.S. Xpress, Inc.usxpress.com

provides asset-based trucking, dedicated private fleets, and full-service logistics solutions across the U.S. with strong network and technology support.

Truck Transportation 馃嚭馃嚫 Chattanooga 3,322 1986
22
Averittaveritt.com

A leading provider of freight transportation and supply chain management with a wide range of customized solutions and international reach

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Cookeville 3,276 1971
23
Acadia Healthcareacadiahealthcare.com

Network of 253 facilities across 39 states providing detox, residential, inpatient, medication-assisted, and outpatient behavioral health and addiction treatments.

Mental Health Care 馃嚭馃嚫 Franklin 3,128 2005
24
HCA Healthcare | TriStar Divisionhcatristardivision.com

Healthcare network in Tennessee and south-central Kentucky with hospitals, emergency rooms, urgent care centers, physician practices, and ambulatory surgery centers, serving over 950,000 patients annually

Hospitals and Health Care 馃嚭馃嚫 Brentwood 2,787 n/a
25
Sound Physicianssoundphysicians.com

National multi-specialty medical group with over 4,000 clinicians providing emergency, hospital medicine, critical care, anesthesia, and telemedicine services across 45 states.

Hospitals and Health Care 馃嚭馃嚫 Nashville 2,777 2001
26
HCA Healthcare Physician Servicescareers.hcahealthcare.com

An expert in physician employment, practice operations, urgent care, and hospitalist integration, focusing on high-quality, patient-centered healthcare solutions

Hospitals and Health Care 馃嚭馃嚫 Brentwood 2,730 n/a
27
FedEx Corporationfedex.com

A global company offering shipping, transportation, e-commerce, and business services, consistently ranked among the world's most admired and trusted employers

Freight and Package Transportation 馃嚭馃嚫 Memphis 2,587 n/a
28
Cookeville Regional Medical Centercrmchealth.org

A leading medical center in the Upper Cumberland region providing high-quality care, career growth opportunities, competitive compensation, and a supportive work environment

Hospitals and Health Care 馃嚭馃嚫 Cookeville 2,449 1921
29
Dialysis Clinic, Inc.dciinc.org

A not-for-profit provider of comprehensive patient care for those with End-Stage Renal Disease, offering various dialysis options and advocating for transplantation

Hospitals and Health Care 馃嚭馃嚫 Nashville 2,435 1971
30
Regional One Healthregionalonehealth.org

Healthcare system in the Mid-South region providing accessible and quality healthcare, featuring top medical professionals, teaching hospital, and a variety of specialty services

Hospitals and Health Care 馃嚭馃嚫 Memphis 2,385 1829
31
West Tennessee Healthcarewth.org

A not-for-profit organization based in Tennessee with a flagship hospital and multiple centers of excellence in healthcare services

Hospitals and Health Care 馃嚭馃嚫 Jackson 2,376 1950
32
Radiology Partnersradpartners.com

Providing high-quality radiology services to hospitals and healthcare facilities nationwide, focusing on clinical value, technology, and patient care.

Hospitals and Health Care 馃嚭馃嚫 Nashville 2,295 2012
33
Ascension Saint Thomashealthcare.ascension.org

Faith-based healthcare organization focused on transformation and innovation in delivering compassionate care to all, particularly the vulnerable and underserved

Hospitals and Health Care 馃嚭馃嚫 Nashville 2,180 1898
34
Tennessee Department of Transportationtn.gov

This company provides award-winning transportation systems in Tennessee and is involved in aviation, public transit, waterways, and railroads They have around 3,900 employees

Government Administration 馃嚭馃嚫 Nashville 2,117 1915
35
First Tennessee Bankfirsthorizon.com

With over 150 years of experience, this company prioritizes financial integrity and customer service, consistently ranked as a top employer nationwide

Financial Services 馃嚭馃嚫 Memphis 1,857 1864
36
Memphis Light, Gas and Water (MLGW)mlgw.com

A public power utility in Memphis and Shelby County providing electricity, natural gas, water services, and supporting local businesses through economic development initiatives

Utilities 馃嚭馃嚫 Memphis 1,760 1939
37
Springstonelifepointhealth.net

A nationwide healthcare company focused on providing behavioral health treatment facilities, community hospitals, rehabilitation centers, and various sites of care

Hospitals and Health Care 馃嚭馃嚫 Brentwood 1,727 2010
38
City of Chattanoogachattanooga.gov

The company is involved in urban revitalization, affordable housing programs, public-private partnerships, and citizen visioning processes to enhance quality of life for residents

Government Administration 馃嚭馃嚫 Chattanooga 1,707 1839
39
Delek USdelekus.com

Downstream energy company with petroleum refining, logistics, renewable fuels production, and convenience store retailing across multiple U.S. states.

Oil and Gas 馃嚭馃嚫 Brentwood 1,674 2001
40
Surgery Partners, Incsurgerypartners.com

Operator of surgical facilities and ancillary healthcare services nationwide, focusing on personalized, cost-effective care and market-specific growth strategies.

Hospitals and Health Care 馃嚭馃嚫 Brentwood 1,538 2004
41
Wellmont Health Systemwellmont.org

A leading health care provider in Northeast Tennessee and Southwest Virginia, delivering superior and compassionate care with a vision for best health care Visit wellmontorg for more information

Hospitals and Health Care 馃嚭馃嚫 Kingsport 1,462 1996
42
Le Bonheur Children's Hospitallebonheur.org

A comprehensive pediatric medical center in Memphis providing outstanding healthcare to over 250,000 children annually with 700+ pediatric specialists

Hospitals and Health Care 馃嚭馃嚫 Memphis 1,259 1952
43
Correct Care Solutionswellpathcare.com

Wellpath is a healthcare organization providing correctional healthcare services Visit their LinkedIn or website for more information

Hospitals and Health Care 馃嚭馃嚫 Nashville 1,258 2003
44
Maury Regional Healthmauryregional.com

Not-for-profit health system providing hospitals, clinics, surgery centers, outpatient services, and physician practices across southern Middle Tennessee.

Hospitals and Health Care 馃嚭馃嚫 Columbia 1,236 1953
45
TriStar Centennial Medical Centertristarhealth.com

This comprehensive medical center offers a range of specialized programs including behavioral health, emergency care, heart and vascular services, oncology, and women's health

Hospitals and Health Care 馃嚭馃嚫 Nashville 1,224 n/a
46
Blount Memorial Hospitalblountmemorial.org

Specializing in cancer care, neurology, women's health, orthopedic care, stroke care, gastroenterology, bariatric, cardiac care, and emergency services with various accreditations

Hospitals and Health Care 馃嚭馃嚫 Maryville 1,201 1947
47
American Renal Associatesinnovativerenal.com

A provider of high-quality dialysis care for patients with kidney conditions, partnering with local physicians to offer exceptional treatment

Hospitals and Health Care 馃嚭馃嚫 Franklin 1,178 1999
48
East Tennessee Children's Hospitaletch.com

Pediatric healthcare system in East Tennessee providing comprehensive services as a not-for-profit organization with a vision for healthy children

Hospitals and Health Care 馃嚭馃嚫 Knoxville 1,109 1937
49
Summit Medical Groupsummitmedical.com

Healthcare provider recruiting various medical professionals, clinical staff, and administrative roles for positions in family medicine, internal medicine, pediatrics, and more Visit website for open positions

Medical Practices 馃嚭馃嚫 Knoxville 1,082 1995
50
Williamson Healthwilliamsonmedicalcenter.org

Offering exceptional healthcare services including hospital care, cardiology, orthopaedics, women's services, physician practices, and emergency services

Hospitals and Health Care 馃嚭馃嚫 Franklin 1,057 1954
51
ArchWell Healtharchwellhealth.com

This company prioritizes seniors by providing superior primary care and building stronger patient-doctor relationships for a healthier and more fulfilling life later on

Hospitals and Health Care 馃嚭馃嚫 Nashville 980 2020
52
Tennessee Oncologytnoncology.com

Specializing in community-based cancer care, our network of physicians offers clinical trials, diagnostic services, chemotherapy treatments, molecular diagnostics, and specialty pharmacy services

Hospitals and Health Care 馃嚭馃嚫 Nashville 945 1976
53
US Heart and Vascularusheartandvascular.com

US Heart & Vascular supports cardiovascular physician practices nationwide, focusing on improving patient care, reducing costs, and fostering collaborative partnerships

Hospitals and Health Care 馃嚭馃嚫 Franklin 870 2021
54
EPBepb.com

A provider of energy and connectivity solutions prioritizing customers, employees, and community, with a focus on innovation, savings, sustainability, and diversity

Utilities 馃嚭馃嚫 Chattanooga 864 1935
55
Traditions Healthtraditionshealth.com

Provides quality home health and hospice services nationwide since 2008, focusing on patients' medical, physical, and emotional needs in their own homes

Hospitals and Health Care 馃嚭馃嚫 Franklin 833 2008
56
Clover Healthcloverhealth.com

A physician enablement company focused on providing affordable, high-quality healthcare to seniors through holistic care, proprietary software, and Medicare Advantage plans

Hospitals and Health Care 馃嚭馃嚫 Nashville 748 2014
57
TriStar Skyline Medical Centergeo-blocked-site.azurewebsites.net

A leading medical center in Tennessee with specialized services in stroke, neuroscience, burn care, trauma, rehabilitation, and emergency heart care

Hospitals and Health Care 馃嚭馃嚫 Nashville 698 n/a
58
Knoxville Utilities Boardkub.org

This organization provides a range of utility services to over 473,000 customers in East Tennessee, prioritizing employee well-being, community engagement, and environmental stewardship

Utilities 馃嚭馃嚫 Knoxville 695 n/a
59
Cookeville Regional Medical Centercrmchealth.org

A progressive regional medical center offering a wide range of medical and surgical specialties to serve residents in middle Tennessee

Hospitals and Health Care 馃嚭馃嚫 Cookeville 638 1950
60
ORNL Federal Credit Unionornlfcu.com

A financial cooperative serving Central East Tennessee, helping members save, decrease debt, and plan for the future with federally insured accounts

Banking 馃嚭馃嚫 Oak Ridge 634 1948
61
Haven Behavioral Healthcareoceanshealthcare.com

A network of hospitals across the country providing inpatient psychiatric care and treatment for adults with acute behavioral health issues

Hospitals and Health Care 馃嚭馃嚫 Nashville 616 n/a
62
Parkwest Medical Centercovenanthealth.com

A premier medical facility in West Knoxville offering top-performing heart services, nationally recognized for award-winning care, and part of Covenant Health

Hospitals and Health Care 馃嚭馃嚫 Knoxville 582 n/a
63
Nashville Electric Servicenespower.com

Distribution of safe, reliable, and affordable electric power to over 430,000 customers across a 700 square mile area in Middle Tennessee.

Utilities 馃嚭馃嚫 Nashville 573 1939
64
Fort Sanders Regional Medical Centercovenanthealth.com

A leading healthcare provider in East Tennessee offering a wide range of services including neurology, orthopedics, oncology, cardiology, and rehabilitation medicine

Wellness and Fitness Services 馃嚭馃嚫 Knoxville 569 1919
65
Capital Bank

The company offers financial insights, news, and special offers Follow their new First Horizon Bank Linkedin page for updates

Banking 馃嚭馃嚫 Memphis 565 n/a
66
ENA by Zayozayoeducation.com

The company offers a range of technology solutions for connectivity, communication, collaboration, cloud, and network security services, including broadband, Wi-Fi, voice, and video solutions

Technology, Information and Internet 馃嚭馃嚫 Nashville 560 1996
67
Priority Ambulancepriorityambulance.com

Emergency and nonemergency medical care provider with highly trained paramedics and EMTs, operating state-of-the-art vehicles in nine states

Hospitals and Health Care 馃嚭馃嚫 Knoxville 554 2014
68
CGS Administrators, LLCcgsmedicare.com

CGS provides administrative services for healthcare providers and health plan members, including provider credentialing, call center services, claims processing, and Medicare support in multiple states

Government Administration 馃嚭馃嚫 Nashville 552 n/a
69
Quorum Healthquorumhealth.com

An operator of general acute care hospitals and outpatient centers committed to quality, community, and empowering local teams for unique healthcare solutions

Hospitals and Health Care 馃嚭馃嚫 Brentwood 374 2016
70
Middle Tennessee Electricmte.com

A not-for-profit electric distribution cooperative in Middle Tennessee providing electricity and support for comfort, affordability and convenience to residents

Utilities 馃嚭馃嚫 Murfreesboro 283 1936
71
Alon USAalonusa.com

An independent petroleum company with refining, asphalt, and retail operations across western and south-central US, focused on growth, innovation, and environmental sustainability

Oil and Gas 馃嚭馃嚫 Brentwood 252 2000
72
Silicon Ranch Corporationsiliconranch.com

A leading provider of custom renewable energy, carbon, and battery storage solutions, with a large portfolio of solar and storage systems in North America

Renewable Energy Semiconductor Manufacturing 馃嚭馃嚫 Nashville 249 2011
73
Commercial Bankcbtn.com

A leading financial institution offering personalized services for individuals and businesses, focused on financial security, freedom, and supporting clients' unique goals

Banking 馃嚭馃嚫 Harrogate 228 1976
74
Cornerstone Systemscornerstone-systems.com

A nationwide provider of transportation and logistics solutions, offering services such as intermodal, truck brokerage, warehousing, and supply chain solutions

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Memphis 200 1997
75
Builtwell Bankbuiltwell.bank

A customer-focused bank offering a range of financial services such as banking, loans, mortgages, insurance, and online banking options for convenience

Banking 馃嚭馃嚫 Chattanooga 194 1904
76
SOAR Transportation Groupsoartransport.com

A top transportation brokerage offering superior freight solutions in dry van, specialized, drayage, and refrigerated with a focus on competitive pricing

Truck Transportation 馃嚭馃嚫 Chattanooga 155 2002
77
BankTennesseebanktennessee.com

A people-focused financial institution offering free checking, savings, loans, online/mobile banking services to help customers manage their finances effectively

Banking 馃嚭馃嚫 Collierville 102 1934
78
Triumph Banktriumphbank.com

A financial institution specializing in banking services, providing solutions to help individuals and businesses achieve their financial goals efficiently

Banking 馃嚭馃嚫 Memphis 52 2006
79
Newport Utilitiesnewportutilities.com

Providing competitively priced essential services like electricity, water delivery, wastewater treatment, and fiber Internet/TV/phone services with a commitment to customer care and excellence

Utilities 馃嚭馃嚫 Newport 35 1949
80
Wise Coaches, Inc.wisecoachesofnashville.com

Providing safe and reliable transportation services through innovative management, advanced technology, rigorous training, and a focus on passenger satisfaction and environmental sustainability

Truck Transportation 馃嚭馃嚫 Antioch 28 1997
81
First Horizon National Corpfirsthorizon.com

Bank holding company providing financial services through regional banking, fixed income, corporate, and non-strategic segments, including investments, lending, and deposit taking

Banking 馃嚭馃嚫 Memphis 15 1968
82
Seven States Power Corporationsevenstatespower.com

An energy solutions cooperative serving 153 local power companies across seven states, empowering members with innovative energy solutions through technology

Utilities 馃嚭馃嚫 Chattanooga 9 2007
83
AMERICAN PATRIOT BANKamericanpatriotbank.com

Financial service provider offering financial planning, insurance, investments, retirement plans, deposits, mortgages, loans, and trusts to individuals and businesses

Banking 馃嚭馃嚫 Greeneville 4 n/a

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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 Oct 24, 2026.

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