100 leading critical infrastructure operators in New York State (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	J.P. Morgan jpmorgan.com Providing comprehensive financial services and wealth management solutions to clients worldwide, prioritizing client interests and long-term relationships.	Financial Services	🇺🇸 New York	240,000	n/a
2	JPMorganChase jpmorganchase.com Global financial institution, managing assets and investments, offering business advice, strategies, and innovative banking solutions to diverse clients worldwide.	Financial Services	🇺🇸 New York	231,537	n/a
3	Citi citi.com A global financial institution with 200 years of experience providing services like asset safeguarding, lending, payments, and capital market access	Financial Services	🇺🇸 New York	188,351	1812
4	Morgan Stanley morganstanley.com Global financial services firm providing investment banking, securities, wealth and investment management services to corporations, governments, institutions, and individuals through strategic capital allocation.	Financial Services	🇺🇸 New York	103,041	n/a
5	American Express americanexpress.com A globally integrated payments company supporting customers' financial confidence, promoting commerce, and providing experiences that enrich lives and drive business success	Financial Services	🇺🇸 New York	94,909	n/a
6	Goldman Sachs goldmansachs.com Global financial institution providing expert capital markets services, investment banking, and asset management for clients through partnership, integrity, and world-class operational excellence.	Financial Services	🇺🇸 New York	76,000	n/a
7	MetLife metlife.com A leading financial services company offering insurance, annuities, employee benefits, and asset management globally, focused on simplifying and meeting customers' evolving needs	Insurance	🇺🇸 New York	58,000	n/a
8	Northwell Health northwell.edu Largest New York healthcare system with hospitals, outpatient facilities, research institutes, medical education, and extensive patient care services.	Hospitals and Health Care	🇺🇸 Lake Success	56,405	1997
9	BNY bny.com Global financial platforms provider managing investment assets and custody services for top banks, governments, pension plans, and major corporations to accelerate growth.	Financial Services	🇺🇸 New York	55,654	1784
10	Mastercard mastercard.com Global technology company in payments industry connecting and powering inclusive digital economy through safe, simple, smart transactions benefiting individuals, institutions, and businesses worldwide	IT Services and IT Consulting	🇺🇸 Purchase	49,687	n/a
11	New York Life newyorklife.com A company committed to putting love into action, supporting local communities through volunteering and giving, while prioritizing development, diversity, and integrity	Financial Services	🇺🇸 New York	37,288	1845
12	Travelers travelers.com A leading insurance company offering coverage for homes, cars, valuables, and businesses with a focus on customer care, innovation, and risk management	Insurance	🇺🇸 New York	35,633	1853
13	Chase chase.com Providing a wide range of financial services to nearly half of American households, including personal banking, credit cards, mortgages, and small business loans	Financial Services	🇺🇸 New York	34,783	n/a
14	Merrill Lynch ml.com Global wealth management firm providing financial advice and solutions tailored to clients' needs including investment management, retirement planning, estate planning, and banking services	Financial Services	🇺🇸 New York	34,594	n/a
15	M&T Bank mtb.com Full-service commercial bank offering retail banking, wealth management, and institutional services with a strong community focus and employee development.	Financial Services	🇺🇸 Buffalo	30,335	n/a
16	Mount Sinai Health System mountsinai.org Provides distinguished care, conducts transformative research, and advances biomedical education through hospitals, a medical school, and extensive ambulatory network.	Hospitals and Health Care	🇺🇸 New York	30,202	2013
17	NYU Langone Health jobs.nyulangone.org World-class academic medical center with top-ranked patient care, education, and research programs, serving diverse communities with excellence and inclusive values	Hospitals and Health Care	🇺🇸 New York	29,840	n/a
18	NewYork-Presbyterian Hospital careers.nyp.org Providing comprehensive patient care across multiple specialized hospitals, focusing on excellence, collaboration, advanced technology, and employee support.	Hospitals and Health Care	🇺🇸 New York	28,040	n/a
19	AIG aig.com A global insurance organization offering solutions for businesses and individuals in 70 countries, listed on the NYSE, with a focus on asset protection and risk management	Insurance	🇺🇸 New York	27,559	n/a
20	PT PLN (Persero)pln.co.id Sole provider of electricity in Indonesia, striving to improve service quality, with a long history and significant assets in the industry	Utilities	🇺🇸 Jakarta Selatan	26,545	1945
21	Metropolitan Transportation Authority mta.info North America's largest transportation network providing bus, subway, and commuter rail services for millions of people in New York City and surrounding areas	Urban Transit Services	🇺🇸 New York	21,333	n/a
22	Memorial Sloan Kettering Cancer Center mskcc.org Specialized teams provide personalized cancer care, conduct innovative research, and train future scientists and clinicians worldwide.	Hospitals and Health Care	🇺🇸 New York	19,653	1884
23	Hospital for Special Surgery hss.edu Academic medical center specializing in orthopedics and rheumatology with top national rankings, low complication rates, and multiple regional facilities.	Hospitals and Health Care	🇺🇸 New York	17,614	1863
24	JetBlue jetblue.com An airline company prioritizing customer, crew, and community satisfaction with core values of safety, caring, integrity, passion, and fun	Airlines and Aviation	🇺🇸 Long Island City	17,136	n/a
25	NYC Health + Hospitals nychealthandhospitals.org The nation's largest public health care delivery system, providing essential services to New Yorkers through an integrated network of hospitals, health centers, and home care.	Hospitals and Health Care	🇺🇸 New York	13,705	n/a
26	TIAA tiaa.org A market-leading retirement company offering solutions for educators and millions of clients to achieve confident, meaningful retirements with lifetime income	Financial Services	🇺🇸 New York	13,233	1918
27	Montefiore Health System montefiore.org Premier academic health system providing specialized medical education, innovative research, advanced technology, and coordinated care for diverse populations.	Hospitals and Health Care	🇺🇸 Bronx	11,619	n/a
28	Rochester Regional Health rochesterregional.org A physician-led integrated health services organization providing comprehensive care, innovative services, and cutting-edge technology to Western New York and beyond	Hospitals and Health Care	🇺🇸 Rochester	11,425	n/a
29	Guardian Life guardianlife.com Provides financial security through life insurance, helps families and businesses plan for the future, and supports communities through impact programs.	Financial Services	🇺🇸 New York	10,157	1860
30	The Mount Sinai Hospital mountsinai.org Provides distinguished patient care, conducts transformative medical research, and advances biomedical education across multiple hospital campuses and an extensive network of outpatient services.	Hospitals and Health Care	🇺🇸 New York	10,004	n/a
31	Con Edison coned.com Providing reliable electricity to millions, focusing on clean energy transition, energy efficiency, and infrastructure resilience against extreme weather.	Utilities	🇺🇸 New York	9,822	n/a
32	CHS Inc.chsinc.com A global agribusiness offering energy, grains, foods, and agricultural services to farmers, ranchers, and cooperatives for business growth and sustainability	Farming	🇺🇸 Minnesota	9,750	n/a
33	Voya Financial voya.com Providing retirement services, employee benefits, and investment management solutions helping workplace and institutional clients achieve financial confidence through integrity and customer centricity.	Financial Services	🇺🇸 New York	9,576	2014
34	Nasdaq nasdaq.com This company aims to advance economic progress by powering economies, creating equitable opportunities, and contributing to a sustainable world	Financial Services	🇺🇸 New York	8,532	n/a
35	University of Rochester Medicine urmc.rochester.edu Academic medical center providing advanced patient care, conducting disease research, and educating future healthcare professionals including doctors, dentists, and nurses.	Hospitals and Health Care	🇺🇸 Rochester	8,483	n/a
36	Optimum optimum.com Optimum, a brand of Altice USA, offers reliable internet service with Optimum Mobile on America's largest 5G network and up to 8 Gig Fiber Internet speeds	Telecommunications	🇺🇸 Queens	8,331	n/a
37	Loews Corporation loews.com Diversified company managing subsidiaries in insurance, pipelines, hotels, and packaging, providing strategic direction and corporate services to all.	Investment Management	🇺🇸 New York	8,020	n/a
38	Flagstar Bank flagstar.com Regional bank operating 340 locations across nine states, offering personalized financial products, technology, and community-focused banking solutions.	Banking	🇺🇸 Hicksville	7,278	n/a
39	Bank Rakyat Indonesia bri.co.id Established in 1895 in Purwokerto, Indonesia, it has grown to become one of the largest banks in Indonesia with a focus on micro banking	Banking	🇺🇸 New York	7,263	1895
40	New York City Fire Department nyc.gov A first responder organization in New York City dedicated to protecting lives and property through bravery, safety, honor, dedication, and preparedness	Public Safety	🇺🇸 Brooklyn	7,161	1865
41	Brown Brothers Harriman bbh.com Global financial services firm providing investor services, asset servicing, investment management, private equity, corporate advisory, and banking solutions worldwide.	Financial Services	🇺🇸 New York	6,819	1818
42	Altice USA alticeusa.com Provider of high-speed broadband, mobile, entertainment, voice services, local news content, and advanced advertising across 21 states.	Telecommunications	🇺🇸 Queens	6,646	n/a
43	Stony Brook Medicine stonybrookmedicine.edu A leading academic medical center with health sciences schools, research, and clinical care teams delivering innovative ideas in healthcare to patients worldwide	Hospitals and Health Care	🇺🇸 Stony Brook	5,786	n/a
44	StoneX Group Inc.linktr.ee Fortune 50 financial services company providing global market access, advanced digital platforms, end-to-end clearing and execution services, and market intelligence to clients worldwide.	Financial Services	🇺🇸 New York	5,769	1924
45	City of New York cityjobs.nyc.gov Provides diverse public services including infrastructure, social services, health, safety, technology, and urban planning for New York City residents.	Government Administration	🇺🇸 New York	5,477	1898
46	VNS Health vnshealth.org Nonprofit organization providing comprehensive home and community-based healthcare services, leveraging data analytics to support diverse patient needs in New York.	Hospitals and Health Care	🇺🇸 New York	5,464	1893
47	Catholic Health catholichealthli.org Integrated health care system on Long Island with deep roots in community, focusing on quality patient experience and comprehensive care from top medical professionals	Hospitals and Health Care	🇺🇸 Rockville Centre	5,305	n/a
48	Maimonides Medical Center linktr.ee Leading hospital in Brooklyn offering top-tier medical services including heart & vascular care, trauma center, surgery, cancer treatment, obstetrics, neonatology, and pediatric care	Hospitals and Health Care	🇺🇸 Brooklyn	5,217	1911
49	Westchester Medical Center Health Network wmchealth.org Provider of advanced medical care in NY's Hudson Valley, offering Level I trauma care, organ transplants, and neurovascular procedures to 35 million residents	Hospitals and Health Care	🇺🇸 Valhalla	4,961	1917
50	NYC Department of Health and Mental Hygiene nyc.gov Promoting public health and mental well-being in New York City through various programs, policies, and investigations to protect and improve the health of all residents	Hospitals and Health Care	🇺🇸 Queens	4,871	1866
51	Hess Corporation hess.com A global energy company engaged in oil and gas exploration and production, with operations in North Dakota, Gulf of Mexico, Malaysia, Thailand, Guyana, and Suriname	Oil and Gas	🇺🇸 New York	4,392	1919
52	SUNY Downstate Health Sciences University downstate.edu Leading urban medical center offering education in medicine, nursing, public health, and health professions with an affiliated university hospital.	Hospitals and Health Care	🇺🇸 Brooklyn	3,757	1860
53	Bank of America Private Bank privatebank.bankofamerica.com Wealth management firm providing personalized strategies for individuals, families, and institutions to manage and preserve wealth across generations with fiduciary care	Financial Services	🇺🇸 New York	3,693	1853
54	St. Peter's Health Partners sphp.com A large integrated not-for-profit healthcare network providing high-quality, compassionate care to thousands daily across the Capital Region	Hospitals and Health Care	🇺🇸 Albany	3,580	2011
55	Monroe County monroecounty.gov Public sector employer in Monroe County, NY with 4600 employees across various fields Offers competitive pay, benefits, career advancement, and innovative services	Government Administration	🇺🇸 Rochester	3,397	1821
56	Federal Reserve Bank of New York newyorkfed.org Implementation of monetary policy, supervision of financial institutions, international operations, and financial services within the Second Federal Reserve District.	Financial Services	🇺🇸 New York	3,239	1914
57	Cablevision linkedin.com A telecommunications company formerly known as Cablevision, now operating as Altice USA Follow us on LinkedIn for updates and news	Telecommunications	🇺🇸 Bethpage	3,179	n/a
58	Lenox Hill Hospital lenoxhill.northwell.edu A renowned 450-bed acute care hospital in Manhattan's Upper East Side, known for outstanding patient care, innovative treatments, and advancing medicine	Hospitals and Health Care	🇺🇸 New York	3,141	1857
59	United Health Services nyuhs.org A leading healthcare system in the Greater Binghamton region, providing comprehensive services to over 600,000 residents through hospitals, senior living, home care, and medical group	Hospitals and Health Care	🇺🇸 Binghamton	3,106	n/a
60	White Plains Hospital wphospital.org A not-for-profit hospital in the Hudson Valley providing advanced medical care, including cancer treatment, maternity care, stroke treatment, and emergency services	Hospitals and Health Care	🇺🇸 White Plains	3,097	1893
61	New York State Office of Mental Health omh.ny.gov Promotes mental health and well-being for New Yorkers through a variety of treatment programs and services for individuals of all ages	Government Administration	🇺🇸 Albany	3,085	n/a
62	NYC Department of Environmental Protection (NYC DEP)nyc.gov This city agency manages New York City's water supply, distributing clean drinking water, treating wastewater, and regulating air quality and pollution	Environmental Services	🇺🇸 Flushing	3,005	n/a
63	MONTEFIORE MEDICAL CENTER cham.org A hospital & health care company located in Bronx, New York, providing medical services and care to individuals in the community	Hospitals and Health Care	🇺🇸 Bronx	2,905	n/a
64	NYU Winthrop Hospital nyulangone.org A hospital merged with NYU Langone Health, offering updated company information, news, and job openings on their LinkedIn page	Hospitals and Health Care	🇺🇸 Mineola	2,880	1896
65	NYS Office of Information Technology Services its.ny.gov Transforming government services in New York State, focusing on innovation, efficiency, and competitiveness through technology and a culture of creativity	IT Services and IT Consulting	🇺🇸 Albany	2,611	n/a
66	Mediacom Communications mediacomcable.com Provides video, high-speed data, phone, home security, automation, broadband solutions, advertising, and production services to households and businesses.	Telecommunications	🇺🇸 Mediacom Park	2,495	1995
67	Staten Island University Hospital siuh.northwell.edu A 714-bed teaching hospital on two campuses offering a wide range of health and wellness services with access to New York's largest health system	Hospitals and Health Care	🇺🇸 Staten Island	2,476	n/a
68	Metro-North Railroad mta.info A commuter railroad service operating in New York and Connecticut, with multiple lines connecting Grand Central Terminal and Hoboken Additionally operates feeder bus and ferry services	Rail Transportation	🇺🇸 New York	2,393	1983
69	NYU Langone Hospital—Brooklyn nyulangone.org NYU Langone Hospital – Brooklyn is now part of NYU Langone Health Stay updated on company information, news, and job openings	Hospitals and Health Care	🇺🇸 Brooklyn	2,367	1883
70	New York Power Authority nypa.gov Largest state public power organization producing mostly clean hydropower, supporting jobs, promoting energy efficiency, and selling electricity to diverse customers.	Utilities	🇺🇸 White Plains	2,295	1931
71	North Shore University Hospital nsuh.northwell.edu A top-ranked medical facility in New York offering groundbreaking medical treatments, advanced expertise, and a top heart program on Long Island	Hospitals and Health Care	🇺🇸 Manhasset	2,186	n/a
72	St. Joseph's Health sjhsyr.org A non-profit health care system in Syracuse, NY offering primary, specialty, and home care services, including award-winning hospital care and community collaboration	Hospitals and Health Care	🇺🇸 Syracuse	2,138	1869
73	Bright House Networks brighthouse.com A leading cable systems operator in the US, offering video, high-speed data, home security, business solutions, and targeted advertising services	Telecommunications	🇺🇸 Syracuse	2,132	n/a
74	Bassett Healthcare Network bassett.org An integrated health care system serving a rural region in upstate New York with hospitals, nursing facilities, health centers, and partners	Hospitals and Health Care	🇺🇸 Cooperstown	2,088	1922
75	BronxCare Health System bronxcare.org Leading voluntary health system in the Bronx with hospitals, mental health and addiction programs, skilled nursing, outpatient services, and medical education partnerships	Hospitals and Health Care	🇺🇸 Bronx	2,080	1890
76	Apple Bank applebank.com Provides comprehensive retail banking services to individuals and businesses in New York City, Long Island, Westchester, Rockland, and New Jersey.	Financial Services	🇺🇸 New York	2,048	1863
77	Long Island Rail Road new.mta.info The company operates the busiest commuter railroad in North America, providing transportation for millions of customers in the New York metropolitan region	Rail Transportation	🇺🇸 Jamaica	2,037	1834
78	The Brooklyn Hospital Center tbh.org A community hospital in Downtown Brooklyn providing primary and specialized medical care, diagnostic services, surgery, and training for physicians	Hospitals and Health Care	🇺🇸 Brooklyn	2,036	1845
79	SBH Health System sbhny.org Community-based healthcare system in the Bronx, NY offering high-quality inpatient, outpatient, emergency medical, mental health, and dental services to individuals and families	Hospitals and Health Care	🇺🇸 Bronx	1,951	1867
80	Tradeweb tradeweb.com Leading global electronic marketplace operator providing access to rates, credit, equities, and money markets for institutional, wholesale, and retail clients worldwide	Financial Services	🇺🇸 New York	1,917	1996
81	Erie County Medical Center Corporation ecmc.edu A medical leader in Western New York focusing on patient experience, providing specialized care, trauma services, and advanced healthcare technologies	Hospitals and Health Care	🇺🇸 Buffalo	1,887	2004
82	QBE North America qbe.com Global insurance leader helping customers solve unique risks, with $76 billion gross written premiums in 2023, operating in 27 countries Careers opportunities available	Insurance	🇺🇸 New York	1,877	1991
83	Community Financial System, Inc.communityfinancialsystem.com A diversified financial services company offering banking, benefits administration, insurance services, and wealth management with over $15 billion in total assets	Financial Services	🇺🇸 Dewitt	1,877	n/a
84	New York City Department of Transportation nyc.gov Ensure safe, efficient, environmentally responsible movement of people and goods while maintaining and enhancing transportation infrastructure for city residents.	Truck Transportation	🇺🇸 New York	1,873	n/a
85	Saratoga Hospital saratogahospital.org Leading healthcare provider in Saratoga region, offering acute-care services with a medical staff of 450+ providers across 20 locations Joined Albany Med Health System in 2017	Hospitals and Health Care	🇺🇸 Saratoga Springs	1,851	n/a
86	Lourdes Hospital guthrie.org A healthcare organization with a 90+ year legacy, providing compassionate, personalized care through a network of doctors, nurses, and associates	Hospitals and Health Care	🇺🇸 Binghamton	1,794	1925
87	Crouse Health crouse.org Central New York's largest healthcare provider offering maternity care, surgical services, cardiac care, orthopedics, neurosciences, oncology, and nursing education to the community	Hospitals and Health Care	🇺🇸 Syracuse	1,766	1887
88	NYC Health + Hospitals\|Bellevue nychealthandhospitals.org A historic hospital in America with a rich legacy of innovation in public health, medical science, and education, providing vital public medical services	Hospitals and Health Care	🇺🇸 New York	1,727	1736
89	NYC Department of Sanitation (DSNY)nyc.gov This company in NYC collects, recycles, and disposes of waste, cleans streets, tackles illegal dumping, and clears snow and ice	Government Administration	🇺🇸 New York	1,722	1881
90	Elderwood elderwood.com A leading provider of senior care services in the Northeast and Mid-Atlantic states, offering a wide range of high-quality facilities and specialized care programs	Hospitals and Health Care	🇺🇸 Buffalo	1,660	1978
91	Popular Bank popularbank.com The company offers sound financial guidance, innovative partnerships, and top-tier financial solutions to clients in the US, Puerto Rico, and the Caribbean	Financial Services	🇺🇸 New York	1,635	n/a
92	Long Island Jewish Medical Center lij.northwell.edu A leading health care provider offering comprehensive medical services, innovative treatments, and top-quality care to patients of all ages	Hospitals and Health Care	🇺🇸 New Hyde Park	1,627	n/a
93	Glens Falls Hospital glensfallshospital.org A leading not-for-profit health care provider in New York's Adirondack region, offering a wide range of specialized medical and surgical services	Hospitals and Health Care	🇺🇸 Glens Falls	1,621	1897
94	NewYork-Presbyterian Brooklyn Methodist Hospital nyp.org A hospital in New York where dedicated individuals deliver excellent patient care every day Join us in providing the best healthcare	Hospitals and Health Care	🇺🇸 Brooklyn	1,568	1887
95	Mohawk Valley Health System mvhealthsystem.org Integrated healthcare delivery system serving Oneida, Herkimer, and Madison counties, offering a wide range of services including inpatient, primary care, multi-specialty, and long-term care	Hospitals and Health Care	🇺🇸 Utica	1,555	2014
96	Brookdale University Hospital and Medical Center brookdalehospital.org Large nonprofit teaching hospital with 530 beds, extensive ambulatory care network, busy emergency department, and Level I trauma center in Brooklyn.	Hospitals and Health Care	🇺🇸 Brooklyn	1,531	1921
97	Richmond University Medical Center rumcsi.org Healthcare facility and teaching institution offering a wide range of medical services, including emergency care, surgery, cardiology, and behavioral health services	Hospitals and Health Care	🇺🇸 Staten Island	1,528	n/a
98	New York Community Bank (NYCB)mynycb.com A leading regional bank with a national presence, specializing in multi-family lending, mortgage origination and servicing, and private banking	Banking	🇺🇸 Hicksville	1,473	1859
99	Garnet Health garnethealth.org A not-for-profit healthcare corporation in New York providing specialty services, medical programs, and quality care to residents in the region	Hospitals and Health Care	🇺🇸 Middletown	1,472	n/a
100	MJHS mjhs.org A not-for-profit health system in Greater New York area providing home care, hospice, rehabilitation, nursing care, and health plans for Medicare individuals	Hospitals and Health Care	🇺🇸 New York	1,464	1907

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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.

100 leading critical infrastructure operators in New York State

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