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Critical infrastructure operators headquartered in Atlanta

Tamtam tracks 44 critical infrastructure operators headquartered in Atlanta. This list ranks all of them by number of employees on LinkedIn, led by UPS, Delta Air Lines and Cox Enterprises. Their median headcount is 2,338. Half of them were founded in 1925 or later.

馃嚭馃嚫 Atlanta44 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
UPSups.com

A global transportation and logistics company with a strong social impact, offering innovative solutions and opportunities for job seekers worldwide

Truck Transportation 馃嚭馃嚫 Atlanta 168,435 1907
2
Delta Air Linesdelta.com

Leading global airline focused on safety, innovation, operational excellence, and award-winning customer service connecting people and cultures worldwide.

Airlines and Aviation 馃嚭馃嚫 Atlanta 75,854 1925
3
Cox Enterprisescoxenterprises.com

Global family-owned company focusing on broadband communications, automotive solutions, and sustainable technologies to improve communities and future mobility.

Technology, Information and Media 馃嚭馃嚫 Atlanta 35,357 1898
4
Global Payments Inc.globalpayments.com

provides secure, fast payment processing and comprehensive commerce software and services to businesses globally, supporting startups to enterprises

Financial Services 馃嚭馃嚫 Atlanta 25,154 n/a
5
Piedmontpiedmont.org

Delivering compassionate healthcare with sustainable excellence through a network of hospitals and dedicated professionals, pioneering patient care for over a century

Hospitals and Health Care 馃嚭馃嚫 Atlanta 19,319 1905
6
Emory Healthcareemoryhealthcare.org

A leading healthcare system in Georgia, offering 11 hospitals, the Emory Clinic, over 250 provider locations, and 2,800 physicians across 70 medical subspecialties

Hospitals and Health Care 馃嚭馃嚫 Atlanta 17,411 n/a
7
Northside Hospitalnorthside.com

A leading Georgia healthcare provider with five hospitals and 250+ outpatient locations, specializing in newborn deliveries, cancer care, sports medicine, and more

Hospitals and Health Care 馃嚭馃嚫 Atlanta 16,933 1970
8
Cox Communicationscox.com

Provider of broadband applications and services enhancing smart homes and cities, focusing on connectivity, comfort, security, and entertainment.

Telecommunications 馃嚭馃嚫 Atlanta 16,351 1964
9
Children's Healthcare of Atlantacareers.choa.org

A leading pediatric healthcare system in Georgia with three hospitals, specialized programs, and a team approach to comprehensive care for children

Hospitals and Health Care 馃嚭馃嚫 Atlanta 12,191 n/a
10
Southern Companysoutherncompany.com

A company and its subsidiaries provide clean, safe, reliable energy to 9 million customers with a focus on service excellence, community value, and net zero emissions by 2050

Utilities 馃嚭馃嚫 Atlanta 12,062 n/a
11
ICEice.com

This company connects individuals to data, technology, and expertise to foster opportunity and drive innovation in various industries

Financial Services 馃嚭馃嚫 Atlanta 11,626 n/a
12
Norfolk Southernnorfolksouthern.com

Operate extensive freight rail network across eastern U.S., connecting major ports and industries, enabling sustainable transportation of diverse goods.

Rail Transportation 馃嚭馃嚫 Atlanta 9,919 1827
13
Cricket Wirelesscricketwireless.com

The company provides easy, high-quality, and affordable wireless services, fostering a culture of growth, inclusivity, and career advancement opportunities

Telecommunications 馃嚭馃嚫 Atlanta 8,811 1999
14
Grady Health Systemgradyhealth.org

A healthcare institution in Atlanta providing trauma, burn, stroke, heart, sickle cell, HIV/AIDS, cancer, mental health, and specialty care services to the community

Hospitals and Health Care 馃嚭馃嚫 Atlanta 6,733 1892
15
Georgia Power Companygeorgiapower.com

A leading energy company dedicated to providing reliable, affordable, and clean energy to millions of customers while giving back to the community

Utilities 馃嚭馃嚫 Atlanta 5,448 1883
16
Emory University Hospitalemoryhealthcare.org

Regional healthcare system affiliated with a university, known for its Magnet accreditation, providing comprehensive healthcare services to the community

Hospitals and Health Care 馃嚭馃嚫 Atlanta 3,522 1904
17
Fulton County Governmentfultoncountyga.gov

The company's mission is to provide efficient service to residents and visitors, focusing on safety, health, self-sufficiency, economic opportunities, culture, and trust in government

Government Administration 馃嚭馃嚫 Atlanta 3,519 1853
18
Gentiva Hospicegentivahs.com

Provides physical, emotional, and spiritual support to hospice patients and their families, helping them live with dignity and make the most of every moment

Hospitals and Health Care 馃嚭馃嚫 Atlanta 2,937 n/a
19
Ameris Bankamerisbank.com

Financial institution focused on providing peace of mind through personalized financial planning and support for individuals and businesses

Financial Services 馃嚭馃嚫 Atlanta 2,780 1971
20
MARTA (Metropolitan Atlanta Rapid Transit Authority)itsmarta.com

provides safe, convenient, and reliable multimodal transit services supporting economic growth, environmental preservation, and regional connectivity in Metro Atlanta

Truck Transportation 馃嚭馃嚫 Atlanta 2,710 1972
21
Piedmont Atlanta Hospitalpiedmont.org

A leading 529-bed, private, not-for-profit hospital in Atlanta providing top-notch patient care and consistently ranking high in patient satisfaction scores

Hospitals and Health Care 馃嚭馃嚫 Atlanta 2,462 1905
22
Norfolk Southern Railroadnorfolksouthern.com

A transportation company operating a railway network across 22 states, providing connections to major container ports and transporting coal, automotive, and industrial products

Truck Transportation 馃嚭馃嚫 Atlanta 2,338 1982
23
Georgia Department of Transportationdot.ga.gov

A team of professionals at Georgia Department of Transportation ensure a safe, connected, and environmentally sensitive transportation system for economic competitiveness

Transportation Programs 馃嚭馃嚫 Atlanta 2,270 1916
24
Georgia Department of Public Healthdph.georgia.gov

The Georgia Department of Public Health focuses on preventing disease, promoting health, responding to disasters, and collaborating with local health departments

Public Health 馃嚭馃嚫 Atlanta 1,712 2011
25
GoHealth Urgent Caregohealthuc.com

Partnerships with health systems providing seamless, personalized on-demand care through physical and digital platforms across multiple states nationwide.

Hospitals and Health Care 馃嚭馃嚫 Atlanta 1,701 2014
26
Fusion Connectfusionconnect.com

Next-generation managed communication service provider and Microsoft Cloud solution provider offering tailored cloud communication, connectivity, and security services for mid-market and enterprise businesses globally

IT Services and IT Consulting 馃嚭馃嚫 Atlanta 1,614 n/a
27
Shepherd Centershepherd.org

A top rehabilitation hospital in Atlanta specializing in treatment, research, and rehabilitation for spinal cord injury, brain injury, stroke, and other neuromuscular conditions

Hospitals and Health Care 馃嚭馃嚫 Atlanta 1,573 1975
28
Federal Reserve Bank of Atlantaatlantafed.org

The company is a regional Reserve Bank that conducts monetary policy, regulates financial institutions, promotes financial stability, and fosters community development

Financial Services 馃嚭馃嚫 Atlanta 1,573 1914
29
Truist Securitiestruist.com

Truist Securities offers a comprehensive range of capital markets, investment banking, and financial solutions for corporate and institutional clients nationwide

Financial Services 馃嚭馃嚫 Atlanta 1,395 2020
30
Cox Businesscox.com

Provider of voice, data, and video services for small and regional businesses in various sectors including healthcare, education, finance, and government organizations

Technology, Information and Internet 馃嚭馃嚫 Atlanta 1,283 1898
31
Delta Community Credit Uniondeltacommunitycu.com

Financial institution in Georgia serving over 480,000 members with banking products, loans, insurance, and financial planning services Not-for-profit giving back to communities

Financial Services 馃嚭馃嚫 Atlanta 1,106 1940
32
Winship Cancer Institute of Emory Universitywinshipcancer.emory.edu

A leading cancer research and treatment institute, focusing on making advances against cancer, improving treatments, and providing hope through research, education, and patient care

Hospitals and Health Care 馃嚭馃嚫 Atlanta 1,038 1937
33
USAA Inc

Providing financial products and services dedicated to supporting U.S. military members and their families with integrity and loyalty.

Insurance Carriers 馃嚭馃嚫 Atlanta 1,003 n/a
34
Southern Company Gassoutherncompanygas.com

A subsidiary of a leading energy company, serving 42 million natural gas utility customers in four states with additional non-utility businesses

Utilities 馃嚭馃嚫 Atlanta 953 n/a
35
Georgia Department of Behavioral Health and Developmental Disabilitiesdbhdd.georgia.gov

Providing treatment and support services for mental health challenges, substance use disorders, and developmental disabilities in Georgia for a life of recovery and independence

Government Administration 馃嚭馃嚫 Atlanta 705 2009
36
Hartsfield-Jackson Atlanta International Airportatl.com

The world's busiest airport serving millions of passengers annually with nonstop service to domestic and international destinations, undergoing a major capital improvement plan

Airlines and Aviation 馃嚭馃嚫 Atlanta 688 1925
37
Momentumgomomentum.com

Empowering businesses with technology for enhanced collaboration, connectivity, and communications globally, facilitating high performance, agility, and efficiency for successful outcomes

Telecommunications 馃嚭馃嚫 Atlanta 572 2001
38
Southern Lincsouthernlinc.com

An Atlanta-based wireless service provider offering highly reliable Push To Talk communications and a secure 4G LTE Advanced network for commercial and government users

Telecommunications 馃嚭馃嚫 Atlanta 551 n/a
39
Hiscox USAhiscox.com

specialty insurance company providing professional liability, cyber security, media, entertainment, management, crime, and commercial property insurance products

Insurance 馃嚭馃嚫 Atlanta 411 1901
40
SunTrust Robinson Humphreytruist.com

A leading full-service corporate and investment bank, specializing in tailored solutions for smart growth through strategic advisory and financial services

Investment Banking 馃嚭馃嚫 Atlanta 314 1894
41
Cypress Communicationscypresscom.net

A leading provider of fully hosted and managed voice, data, and Internet solutions for small-to-medium enterprises, specializing in unified communications

Telecommunications 馃嚭馃嚫 Atlanta 171 n/a
42
Citizens Trust Bankctbconnect.com

A long-standing financial institution offering personalized service and solutions to empower customers and support community development through lending, investments, and service

Banking 馃嚭馃嚫 Atlanta 139 1921
43
Georgia Natural Gasgng.com

A leading provider of natural gas services, serving residential, business, large commercial, industrial, and CNG customers across multiple retail energy markets

Utilities 馃嚭馃嚫 Atlanta 50 1998
44
Mirantnrg.com

An energy company that produces and sells electricity globally with over 17,000 megawatts of generating capacity, headquartered in Atlanta

Oil and Gas 馃嚭馃嚫 Atlanta 7 2001

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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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