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List of critical infrastructure operators in Alabama

Tamtam tracks 116 critical infrastructure operators headquartered in Alabama. This list ranks the 100 largest by number of employees on LinkedIn, led by State Farm, PayPal and New York Life. Their median headcount is 1,705. Half of them were founded in 1939 or later. The most common headquarters are Birmingham (14), Mobile (5) and Huntsville (4).

馃嚭馃嚫 Alabama100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
State Farmstatefarm.com

Providing insurance and financial solutions to help people manage risks, recover from unexpected events, and achieve their dreams.

Insurance 馃嚭馃嚫 Bloomington 112,234 1922
2
PayPalpaypal.com

Enables fast, easy, enjoyable money movement for individuals and businesses globally, unlocking opportunities and empowering everyday financial interactions for millions.

Software Development 馃嚭馃嚫 San Jose 38,343 1998
3
New York Lifenewyorklife.com

Provides life insurance, investment products, retirement planning, and advisory services to protect families and grow financial security over time.

Financial Services 馃嚭馃嚫 37,000 1845
4
Nationwidenationwide.com

A top-rated insurance and financial services organization offering a wide range of products including auto, home, life insurance, retirement plans, and more

Insurance 馃嚭馃嚫 31,376 n/a
5
Regions Bankregions.com

Full-service provider of consumer and commercial banking, wealth management, and mortgage products across the South, Midwest and Texas through numerous local offices.

Banking 馃嚭馃嚫 Birmingham 22,739 1971
6
Barclays Corporate & Investment Bankib.barclays

Providing strategic advisory, financing, and risk management solutions to global clients including governments, institutions, and corporations for growth.

Financial Services 馃嚭馃嚫 New York 22,269 n/a
7
Vanderbilt University Medical Centervanderbilthealth.com

Leading academic medical center, excels in patient care, research, and education, solving complex medical problems through innovation and collaboration. Specialized care for various conditions, including transplants and pediatric cancer.

Hospitals and Health Care 馃嚭馃嚫 Nashville 21,888 1875
8
Encompass Healthencompasshealth.com

Leading provider of rehabilitative care in the US, operating 158 hospitals across 37 states and Puerto Rico Offers high-quality care using advanced technology

Hospitals and Health Care 馃嚭馃嚫 Birmingham 16,591 1984
9
Cincinnati Children'scincinnatichildrens.org

Nonprofit academic medical center providing pediatric care from wellness visits to complex conditions while conducting research and training hundreds of medical residents.

Hospitals and Health Care 馃嚭馃嚫 16,493 1883
10
NRG Energynrg.com

Provides innovative natural gas, electricity, and smart home energy solutions to a diverse range of customers across North America.

Consumer Services 馃嚭馃嚫 Houston 16,171 1989
11
Western Unionwesternunion.com

A global financial services company expanding ways to send, save, and spend money, making financial services accessible to people worldwide

Financial Services 馃嚭馃嚫 Denver 15,640 1851
12
Brigham and Women's Hospitalbrighamandwomens.org

A world-renowned hospital in Boston affiliated with Harvard Medical School, providing exceptional patient care, groundbreaking research, and top-notch medical training programs

Hospitals and Health Care 馃嚭馃嚫 15,440 n/a
13
UAB Medicineuabmedicine.org

Academic medical center providing specialized patient care, trauma services, intensive care units, and recognized for excellence in healthcare and employee support.

Hospitals and Health Care 馃嚭馃嚫 Birmingham 11,075 1945
14
Boston Medical Center (BMC)bmc.org

delivering equitable healthcare, conducting research, and collaborating with communities to improve health outcomes and access for all patients

Hospitals and Health Care 馃嚭馃嚫 Boston 10,149 n/a
15
City of Chicagochicago.gov

The company provides information about the city of Chicago, its diverse neighborhoods, values, and current mayor, Brandon Johnson

Government Administration 馃嚭馃嚫 9,125 1837
16
UChicago Medicineuchicagomedicine.org

Provides superior, compassionate healthcare, advancing medical innovation, serving community health needs, and furthering knowledge through an academic medical institution and regional network.

Hospitals and Health Care 馃嚭馃嚫 Chicago 7,940 1927
17
Amerenameren.com

A Fortune 500 company based in St Louis, providing electric and natural gas services to millions of customers in Illinois and Missouri

Utilities 馃嚭馃嚫 St. Louis 7,092 1902
18
FirstEnergyfirstenergycorp.com

Forward-thinking electric utility dedicated to safety, reliability, and operational excellence Serving customers in multiple states with transmission lines connecting regions

Utilities 馃嚭馃嚫 Akron 6,420 1997
19
Albany Medical Centeralbanymed.org

Provides high-level patient care, educates medical professionals, and conducts biomedical research, operating a large regional health system with a medical college and physician practice.

Hospitals and Health Care 馃嚭馃嚫 Albany 6,190 n/a
20
Huntsville Hospitalhuntsvillehospital.org

Regional referral center with 881 beds providing healthcare services in North Alabama and southern Tennessee, part of a health system with 12 hospitals and over 19,000 employees

Hospitals and Health Care 馃嚭馃嚫 Huntsville 6,147 1895
21
New York City Transitmta.info

A public transportation agency in NYC modernizing infrastructure, utilizing technological tools, and seeking skilled individuals to provide world-class service

Truck Transportation 馃嚭馃嚫 6,073 1904
22
SouthState Banksouthstatebank.com

Leading regional bank in the Southeast offering consumer, mortgage, small business, commercial banking, and wealth management solutions to over one million customers.

Banking 馃嚭馃嚫 Winter Haven 5,840 1934
23
UMB Bankumb.com

Provides financial services for individuals and institutions, including bank deposit products, with a focus on being an Equal Housing Lender.

Financial Services 馃嚭馃嚫 Kansas City 5,380 1913
24
The Port Authority of New York & New Jerseyjointheportauthority.com

Designing, engineering, and operating transportation infrastructure supporting millions of people and billions in economic activity across a major regional hub.

Government Administration 馃嚭馃嚫 5,187 1921
25
Bank Al Habib Limitedbankalhabib.com

A privately owned bank in Pakistan with a history dating back to the 1930s, offering a wide range of banking services

Banking 馃嚭馃嚫 4,744 1991
26
Duke University Medical Centerdukehealth.org

Comprehensive patient care, medical education, and advanced research facilities located on a university medical campus in North Carolina.

Hospitals and Health Care 馃嚭馃嚫 4,223 1930
27
SCA Healthsca.health

National company managing surgical and physician practices, serving millions of patients annually across numerous clinical locations and physician clinics.

Hospitals and Health Care 馃嚭馃嚫 Birmingham 3,843 2007
28
Valley Bankvalley.com

Serving communities since 1927. Dedicated professionals create better banking opportunities, foster growth, and provide financial solutions including mortgages, lending, and wealth management.

Banking 馃嚭馃嚫 Morristown 3,786 1927
29
Pinnacle Financial Partnerspnfp.com

Provides comprehensive banking, investment, trust, mortgage, and insurance products and services with distinctive service and expert advice to businesses and individuals.

Banking 馃嚭馃嚫 Nashville 3,587 2000
30
Children's of Alabamachildrensal.org

A leading pediatric medical facility providing specialized care for children in Alabama, offering inpatient, outpatient, and primary medical services

Hospitals and Health Care 馃嚭馃嚫 Birmingham 3,513 1911
31
Protective Lifeprotective.com

Provides life insurance, annuities, and asset protection solutions to over 14 million customers with financial stability and customer focus.

Insurance 馃嚭馃嚫 Birmingham 3,319 n/a
32
Alameda Health Systemalamedahealthsystem.org

Comprehensive healthcare system providing trauma, psychiatric, rehabilitation, and community wellness services across multiple hospitals and centers in East Bay.

Hospitals and Health Care 馃嚭馃嚫 2,983 n/a
33
First Bankfirst.bank

Serving clients, local communities for over 100 years, providing superior products, quality service, personalized experiences, helping family-owned businesses thrive across generations.

Banking 馃嚭馃嚫 2,665 1910
34
St. Francis Hospitalsfhhc.org

A provider of medical services and care within a healthcare facility focusing on treatment, diagnosis, and support for various medical conditions

Hospitals and Health Care 馃嚭馃嚫 2,648 n/a
35
Alabama Power Companyalabamapower.com

This company provides affordable, reliable electricity to 15 million homes, businesses, and industries in the southern two-thirds of Alabama

Utilities 馃嚭馃嚫 Birmingham 2,606 1906
36
Englewood Hospitalenglewoodhealth.org

Leading healthcare system providing inpatient, outpatient, specialty care, surgery, imaging, and community health services across northern New Jersey.

Hospitals and Health Care 馃嚭馃嚫 2,567 1890
37
Chesterfield Countychesterfield.gov

Local government providing public safety, health, recreation, cultural activities, community development, utilities, and public health services to residents.

Government Administration 馃嚭馃嚫 2,501 n/a
38
Phoebe Putney Health Systemphoebehealth.com

Not-for-profit healthcare system operating hospitals, clinics, and specialty centers providing advanced medical treatments and comprehensive patient care in Southwest Georgia.

Hospitals and Health Care 馃嚭馃嚫 2,328 1911
39
Alfa Insurancealfainsurance.com

A stable and affordable insurance company offering property, casualty, and life insurance with a focus on personalized service and superior customer care

Insurance 馃嚭馃嚫 Montgomery 2,312 1946
40
DCH Health Systemdchsystem.com

A healthcare system based in Tuscaloosa, AL, offering comprehensive services including cancer treatment, cardiac care, therapy, home health, and specialized medical services

Hospitals and Health Care 馃嚭馃嚫 Tuscaloosa 2,270 1923
41
Southern Nuclearsouthernnuclear.com

This company operates nuclear plants in Alabama and Georgia, including the first new nuclear units built in the US in 30 years

Utilities 馃嚭馃嚫 Birmingham 2,214 n/a
42
City of Fresnofresno.gov

Provides municipal services and governance for Fresno, the fifth largest city in California, focusing on community development and public administration.

Government Administration 馃嚭馃嚫 2,144 1885
43
Enloe Healthenloe.org

A non-profit hospital offering patient-centered care, trauma services, neonatal intensive care, and a range of medical specialties in a nurturing environment

Hospitals and Health Care 馃嚭馃嚫 2,088 n/a
44
Syniversesyniverse.com

powers global mobile experiences and transactions, serving as a critical communications platform for businesses, banks, and tech companies worldwide.

IT Services and IT Consulting 馃嚭馃嚫 Tampa 2,086 1987
45
Innovative Renal Careinnovativerenal.com

Network of dialysis professionals helping people with kidney disease lead their best lives through treatment, data, and technology.

Hospitals and Health Care 馃嚭馃嚫 Franklin 1,921 n/a
46
NBT Banknbtbank.com

Financial services holding company, operates a full-service community bank across seven states, provides 401(k) plan recordkeeping and full-service insurance.

Banking 馃嚭馃嚫 Norwich 1,857 1856
47
FirstBankfirstbankonline.com

Provides local banking services for businesses, families, and individuals through 90 branches and mortgage offices across four southeastern states.

Financial Services 馃嚭馃嚫 Nashville 1,809 1906
48
East Alabama Healtheastalabamahealth.org

Providing high quality, compassionate healthcare services with a focus on patient care, employee excellence, and community well-being

Hospitals and Health Care 馃嚭馃嚫 Opelika 1,781 1952
49
Colorado Springs Utilitiescsu.org

largest community-owned utility providing electric, natural gas, water, and wastewater services, supporting community well-being and local businesses for 100 years

Utilities 馃嚭馃嚫 Colorado Springs 1,753 1922
50
Riverside Community Hospitalgeo-blocked-site.azurewebsites.net

Provides comprehensive healthcare services, including surgery, neuroscience, cardiology, and orthopedics, with a focus on teaching and continuous medical innovation since 1901.

Hospitals and Health Care 馃嚭馃嚫 Riverside 1,705 1901
51
Alabama Department of Public Healthalabamapublichealth.gov

State health agency in Alabama providing disease prevention, public health services, and guidance to county health departments and districts

Government Administration 馃嚭馃嚫 Montgomery 1,591 1875
52
Hotwire Communications Ltdhotwirecommunications.com

Provider of customized fiber optic telecommunications services for residential, commercial, hospitality, and campus environments, offering high-speed internet, TV, and phone solutions

Telecommunications 馃嚭馃嚫 Fort Lauderdale 1,586 2002
53
USA Healthusahealthsystem.com

Medical care, education, and research provider in Mobile and surrounding areas, offering advanced treatments, clinics, hospitals, and training programs for healthcare professionals

Hospitals and Health Care 馃嚭馃嚫 Mobile 1,563 n/a
54
Peoples Bankpeoplesbancorp.com

This company offers comprehensive banking, investment, insurance, and financing solutions through its branches, combining large institution sophistication with community bank heart.

Financial Services 馃嚭馃嚫 Marietta 1,556 1902
55
Sonora Quest Laboratories/ Laboratory Sciences of Arizonasonoraquest.com

Performs over 97 million diagnostic tests annually including routine, molecular, genetic, and pathology testing, with 70+ patient service centers across Arizona.

Hospitals and Health Care 馃嚭馃嚫 Phoenix 1,482 1997
56
City of Bellevue, Washingtonbellevuewa.gov

The organization is a high-tech and retail hub in Washington, offering green spaces, recreational facilities, and cultural attractions for its residents and visitors.

Government Administration 馃嚭馃嚫 Bellevue 1,477 1953
57
Infirmary Healthinfirmaryhealth.org

Leading healthcare system in Alabama with multiple hospitals, clinics, diagnostic centers, and emergency departments serving a large region Offering various medical services and career opportunities

Hospitals and Health Care 馃嚭馃嚫 Mobile 1,420 1910
58
Jackson Hospitaljackson.org

A non-profit community health network in Montgomery, Alabama providing superior healthcare through a 344-bed acute care hospital, physician clinic, surgery center, and imaging center

Hospitals and Health Care 馃嚭馃嚫 Montgomery 1,382 1946
59
Utah Transit Authorityrideuta.com

Multimodal public transportation agency serving six counties and over 80 cities along the Wasatch Front region.

Ground Passenger Transportation 馃嚭馃嚫 1,365 1970
60
Southeast Healthsoutheasthealth.org

A healthcare provider serving over 600,000 residents in Southeast Alabama, Southwest Georgia, and the Florida Panhandle with a dedicated team of professionals and top-notch medical services

Hospitals and Health Care 馃嚭馃嚫 Dothan 1,296 1957
61
City of Boisecityofboise.org

A team of passionate professionals dedicated to creating a city for everyone, focused on community, environment, and economy for future generations

Government Administration 馃嚭馃嚫 1,264 1863
62
American Family Careamericanfamilycare.com

A leading provider of urgent care and accessible primary care with over 160 clinics, 500 physicians, and 2 million patients annually

Medical Practices 馃嚭馃嚫 Birmingham 1,171 1982
63
Valley Watervalleywater.org

Management of water supply, flood protection, stream stewardship, dams, reservoirs, treatment plants, groundwater recharge, and wholesale water services in Santa Clara County.

Utilities 馃嚭馃嚫 1,104 1929
64
Rabobank North AmericaRabobankWholesaleBankingNA.com

Leading bank specialized in financing for food and clean energy sectors, built on a foundation of farmer-led origins for over a century.

Financial Services 馃嚭馃嚫 New York 1,084 1981
65
Grandview Medical Center - Birmingham, ALgrandviewhealth.com

Tertiary care hospital in Birmingham with diverse specialties, including heart care, labor/delivery, robotic surgery, trauma center, chest pain center, and more

Hospitals and Health Care 馃嚭馃嚫 Birmingham 1,082 n/a
66
ProAssuranceproassurance.com

Specializing in healthcare liability and other insurance solutions, with a focus on treating clients fairly and providing unique, tailored options

Insurance 馃嚭馃嚫 Birmingham 1,053 n/a
67
Springhill Medical Centerspringhillmedicalcenter.com

A full-service hospital in southwest Alabama offering surgical, diagnostic, and specialized medical services including heart, cancer, orthopaedic, wound care, and emergency care

Hospitals and Health Care 馃嚭馃嚫 Mobile 1,018 1975
68
Happen Bank

Offers digital banking products, helping people keep more earnings, earn more on savings, and achieve financial goals through innovation.

Banking 馃嚭馃嚫 1,001 n/a
69
Adventist Health GlendaleAdventistHealth.org

A trusted 515-bed hospital in Glendale, CA and surrounding areas, part of a larger healthcare system across California, Oregon, Washington, and Hawaii

Hospitals and Health Care 馃嚭馃嚫 982 1905
70
St. Vincent鈥檚 Health Systemuabstvincents.org

A faith-based healthcare organization dedicated to providing compassionate, personalized care to all, with a focus on serving those in poverty and vulnerable populations

Hospitals and Health Care 馃嚭馃嚫 Birmingham 982 1898
71
Lincoln Investmentlincolninvestment.com

Provides financial security to individuals and families via independent financial professionals and diverse investment choices. A broker-dealer and investment advisor.

Financial Services 馃嚭馃嚫 Fort Washington 963 1968
72
PennDOT (Pennsylvania department of Transportation)pa.us

This company is involved in transportation infrastructure within the state of Pennsylvania, managing roadways, bridges, and other related projects

Software Development 馃嚭馃嚫 910 n/a
73
Redstone Federal Credit Unionsmartlink2.metricool.com

A leading credit union in Tennessee Valley with over 400,000 members, $4 billion in assets, and 25 branch locations Helping achieve financial dreams

Banking 馃嚭馃嚫 Huntsville 906 1951
74
American General Life Companies is now part of the AIG Family!aig.com

A company that was recently acquired by AIG, providing updates on American General Follow AIG on LinkedIn, Twitter, and visit their website for more information

Insurance 馃嚭馃嚫 853 n/a
75
Southeast Alabama Medical Centersoutheasthealth.org

A leading healthcare provider in the Southeast region, offering comprehensive medical services with a dedicated team of professionals and state-of-the-art facility

Hospitals and Health Care 馃嚭馃嚫 Dothan 846 1957
76
CommunityAmerica Credit Unioncommunityamerica.com

A community-focused financial institution in Kansas City offering a full suite of products and services, including banking, loans, insurance, and investments

Banking 馃嚭馃嚫 845 1940
77
AltaPointe Health Systemsaltapointe.org

A large healthcare system in Alabama providing primary and behavioral healthcare, including a Federally Qualified Health Center, psychiatric hospitals, and outpatient clinics

Hospitals and Health Care 馃嚭馃嚫 Mobile 832 1957
78
CRESTWOOD MEDICAL CENTERcrestwoodmedcenter.com

A medical practice company located in Huntsville, Alabama, focused on providing healthcare services to the community at 1 Hospital Dr SW

Hospitals and Health Care 馃嚭馃嚫 Huntsville 832 1965
79
Diversified Energy Companydiv.energy

A leading energy company focused on natural gas and liquids production, transport, sustainability, and well retirement through strategic asset acquisition and investment

Oil and Gas 馃嚭馃嚫 Birmingham 831 2001
80
CenturyLink Indiacenturylink.com

Global communications provider focusing on customer experience, offering reliable and secure networking solutions in over 60 countries, specializing in managed network and cyber security services

IT Services and IT Consulting 馃嚭馃嚫 824 1930
81
Gadsden Regional Medical Centergadsdenregional.com

Community healthcare provider with 346 beds, offering inpatient and outpatient care Specializes in hip and knee replacements, cardiology, and emergency care Committed to healing and connection

Hospitals and Health Care 馃嚭馃嚫 Gadsden 786 1906
82
AMEDISYS HOME HEALTHamedisys.com

AMEDISYS HOME HEALTH is a hospital & health care company in Blountsville, Alabama, providing services to patients in the comfort of their own homes

Hospitals and Health Care 馃嚭馃嚫 Blountsville 771 n/a
83
Pepcopepco.com

Provides safe and reliable electric energy delivery services to over 842,000 customers in Maryland and the District of Columbia.

Utilities 馃嚭馃嚫 769 n/a
84
Baptist Health - Central Alabamabaptistfirst.org

A leading health care system in Central Alabama with 600+ physicians offering advanced treatments, technologies, and top-notch medical care to residents

Hospitals and Health Care 馃嚭馃嚫 Montgomery 768 n/a
85
Cullman Regional Medical Centercullmanregional.com

A fully accredited medical center providing excellent healthcare services to a five-county area, delivering over 1,000 babies annually, with a strong community presence

Hospitals and Health Care 馃嚭馃嚫 Cullman 742 1939
86
Keolis SAkeolisna.com

Leading provider of passenger transportation services in the US and Canada, offering train, bus, and ADA paratransit services through public contracts

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Boston 731 n/a
87
Midland States Bankmidlandsb.com

Provides commercial and consumer banking products, business equipment financing, merchant credit card services, trust and investment management, and insurance and financial planning services.

Banking 馃嚭馃嚫 Effingham 730 1881
88
Leadlead.bank

State-chartered bank, banking-as-a-service platform for builders, innovators. Offers banking products, services for partners. Also full service Business and Personal banking.

Financial Services 馃嚭馃嚫 Sunnyvale 718 1928
89
CARTIcarti.com

Not-for-profit cancer care provider offering medical, radiation, surgical oncology, specialty services, and accessible treatment across multiple locations in Arkansas.

Hospitals and Health Care 馃嚭馃嚫 715 1976
90
Flowers Hospitalflowershospital.com

A healthcare facility in the Wiregrass region providing quality healthcare, advanced technology, and a strong community relationship for over 70 years

Hospitals and Health Care 馃嚭馃嚫 Dothan 699 1950
91
Virginia Commonwealth University Health Systemvcuhealth.org

The company provides comprehensive care for patients in an adult acute care, medical-surgical setting with a focus on medication administration and interdisciplinary collaboration

Hospitals and Health Care 馃嚭馃嚫 662 n/a
92
City of Huntsville, ALhuntsvilleal.gov

Enhancing citizens' quality of life through efficient resource allocation, Huntsville provides exceptional services to all its residents

Government Administration 馃嚭馃嚫 Huntsville 651 n/a
93
ServisFirst Bankservisfirstbank.com

A full-service commercial bank specializing in commercial banking, cash management, private banking, and consumer finance, with a focus on quality service and cutting-edge technology

Banking 馃嚭馃嚫 Birmingham 643 2005
94
Uniti Fiberuniti.com

Uniti Fiber, a subsidiary of Uniti Group, offers infrastructure solutions such as cell site backhaul, small cell, Ethernet, Wavelengths, and Dark Fiber for telecom operators and enterprises

Telecommunications 馃嚭馃嚫 Mobile 627 2016
95
Marshall Medical Centersmmcenters.com

Regional healthcare facility in Northeast Alabama offering a wide range of services, specialty options, modern technology, and highly trained staff to provide world-class healthcare with a personal touch

Hospitals and Health Care 馃嚭馃嚫 Boaz 618 1997
96
Institute of Nuclear Power Operations (INPO)inpo.info

Support nuclear industry with safety, performance, and reliability programs, risk management, and skilled team development for reactor operations.

Utilities 馃嚭馃嚫 614 1979
97
Ascension Healthascension.org

A United States-based hospital and health care company focused on providing quality healthcare services to patients

Hospitals and Health Care 馃嚭馃嚫 610 n/a
98
First National Bankfnbhamilton.com

Locally owned and operated community bank providing quality service and personal touch to meet all your banking needs with multiple locations

Banking 馃嚭馃嚫 Hamilton 584 1976
99
Varo Bankvaromoney.com

digital, mission-driven bank, FDIC insured. It provides mobile-first access to premium banking services, including quicker money access, high-yield savings, and automatic saving tools.

Banking 馃嚭馃嚫 San Francisco 580 2015
100
The Pasha Grouppashagroup.com

delivers innovative transportation and logistics services worldwide, moving containers, vehicles, construction equipment, military, or household goods quickly and efficiently.

Truck Transportation 馃嚭馃嚫 San Rafael 559 1947

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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.

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