These critical infrastructure operators in Jacksonville include large organizations in financial services, healthcare, and transportation. Fidelity National Financial is a provider of title insurance, CSX operates an extensive rail network, Baptist Health offers comprehensive healthcare services, and Crowley provides maritime shipping and logistics. These companies represent established operations vital to the region's economy and public services.
A notable pattern among these companies is the strong presence of healthcare providers. Baptist Health, Nemours Children's Health, UF Health Jacksonville, Ascension St. Vincent's, Healogics, and Onslow Memorial Hospital all contribute to a significant cluster of medical and health services in the area.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Fidelity National Financialfnf.com
Leading provider of title insurance and transaction services for real estate and mortgage industries, focusing on customer safety and ownership experience. |
20,848 | |||
| 2 | 12,897 | ||||
| 3 |
Baptist Healthbaptistjax.com
Provide high-quality comprehensive healthcare services, including hospitals, specialty clinics, physician practices, home health care, behavioral health, and rehabilitation services to families in Northeast Florida |
9,797 | |||
| 4 |
Florida Bluefloridablue.com
Health insurance provider offering coverage and health solutions to residents and businesses across Florida, focusing on community well-being. |
8,167 | |||
| 5 |
Nemours Children's Healthnemours.org
A non-profit children's health organization providing family-centered care, research, education, advocacy, and world-changing initiatives to improve the health of children |
6,960 | |||
| 6 |
Crowleycrowley.com
Provides maritime shipping, logistics, energy transportation, marine engineering, offshore services, and government support with a large fleet and global operations. |
4,442 | |||
| 7 |
UF Health Jacksonvilleufhealthjax.org
This company provides exemplary medical care, advanced treatment, and research as an academic medical center affiliated with the University of Florida |
3,778 | |||
| 8 |
Landstarlandstar.com
A network of independent agents and capacity providers offer safe, reliable transportation services with global reach and personalized local service |
2,985 | |||
| 9 |
Ascension St. Vincent'shealthcare.ascension.org
A faith-based healthcare organization dedicated to providing compassionate care to all, with a focus on those living in poverty and vulnerable populations |
2,882 | |||
| 10 |
EverBankeverbank.com
Provides high-value banking products and services, including digital access and financial centers, focusing on high-yield solutions for clients. |
2,532 | |||
| 11 |
Fidelity National Financialfnf.com
Provider of title insurance and transaction services to real estate and mortgage industries Largest title insurance company in the US |
2,348 | |||
| 12 | 2,126 | ||||
| 13 |
VyStar Credit Unionvystarcu.org
Credit union providing financial services, mortgage lending, and community support to members in Florida, Georgia, and military families worldwide. |
2,004 | |||
| 14 |
Healogics, LLC.healogics.com
A national expert in wound healing, providing advanced care through a network of centers and partnerships with skilled nursing facilities and hospitals |
1,809 | |||
| 15 |
Onslow Memorial Hospitalonslow.org
A 162-bed hospital in North Carolina offering state-of-the-art healthcare services, including diagnostic, maternity, intensive care, emergency, and rehabilitation services |
753 | |||
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 |
Community Hospice & Palliative Carecommunityhospice.com
A national leader in palliative and hospice care providing programs and services to improve quality of life for patients and families |
722 | |||
| 17 |
HCA Florida Memorial Hospitalโhcafloridahealthcare.com
A 454-bed acute care hospital in Jacksonville offering advanced healthcare services, including 24-hour emergency care, maternity care, and orthopedic services |
599 | |||
| 18 |
Community First Credit Unioncommunityfirstfl.org
Providing diverse financial products including loans, mortgages, checking, savings, and investment services to support members and communities. |
594 | |||
| 19 |
Florida East Coast Railwayfecrwy.com
Transport major carload commodities including aggregate, automobiles, lumber, farm products, machinery, petroleum, and various industrial materials since 1885. |
528 | |||
| 20 |
TIAA Bankeverbank.com
A nationwide specialty bank offering a range of high-value products and services to consumer and commercial clients across the country |
498 | |||
| 21 |
APR Energyaprenergy.com
A global leader in specialized energy solutions with a proven track record in executing, owning, and managing projects in over 35 countries since 2004 |
478 | |||
| 22 |
Wolfson Children's Hospitalwolfsonchildrens.com
A nonprofit pediatric hospital providing comprehensive care to children in North Florida and beyond, with a focus on patient-centered care and advocacy |
441 | |||
| 23 |
Complete Healthcompletehealth.com
Physician-led primary care group using technology for superior quality, support, and outcomes Specializing in value-based care for Medicare patients |
439 | |||
| 24 |
Austin Bankaustinbank.com
A family-owned bank with a strong community focus, offering a range of personal and business banking services with values of trust, integrity, and service |
424 | |||
| 25 |
Jacksonville Transportation Authorityjtafla.com
Designs and constructs bridges and highways, operates diverse mass transit services including buses, ferries, shuttles, and autonomous vehicle initiatives. |
410 | |||
| 26 |
JAAflyjacksonville.com
The company manages a diversified airport system serving commercial, business, and recreational needs in Jacksonville, northeast Florida, and southeast Georgia |
325 | |||
| 27 |
City of Jacksonville NC (Government)jacksonvillenc.gov
Providing municipal governance and public services through elected officials and professional staff to serve the community's needs effectively. |
308 | |||
| 28 |
U.S. Army Corps of Engineers, Jacksonville Districtsaj.usace.army.mil
A major command in the US Army focused on delivering engineering services worldwide, including water resources, environment, infrastructure, homeland security, and warfighting |
190 | |||
| 29 |
Century Ambulance Service, Inc.centuryambulance.com
A leading medical transport provider in Florida, offering advanced emergency and non-emergency services with top-notch care, professionalism, and state-of-the-art equipment |
182 | |||
| 30 |
Jones-Onslow Electric Membership Corporationjoemc.com
Providing safe, reliable, affordable electric service to residential, commercial, industrial, and agricultural customers across multiple counties. |
102 | |||
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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 12, 2026.
More company lists in Jacksonville
- The largest companies in Jacksonville 314
- Multinational companies in Jacksonville 46
- Professional services firms in Jacksonville 28
- Retail chains in Jacksonville 26
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