| # | Company | Employees |
|---|---|---|
| 1 |
NYC Public Schoolsschools.nyc.gov
Largest urban public school system serving 1.1 million students with diverse staff committed to equity, inclusion, and educational excellence. |
78,078 |
| 2 |
Northwell Healthnorthwell.edu
Largest New York healthcare system with hospitals, outpatient facilities, research institutes, medical education, and extensive patient care services. |
56,405 |
| 3 |
Mount Sinai Health Systemmountsinai.org
Provides distinguished care, conducts transformative research, and advances biomedical education through hospitals, a medical school, and extensive ambulatory network. |
30,202 |
| 4 |
NYU Langone Healthjobs.nyulangone.org
World-class academic medical center with top-ranked patient care, education, and research programs, serving diverse communities with excellence and inclusive values |
29,840 |
| 5 |
Columbia Universitycolumbia.edu
A renowned leader in higher education, Columbia attracts top minds to drive academic inquiry, make groundbreaking discoveries, and serve society globally |
23,565 |
| 6 |
Cornell Universitycornell.edu
Privately endowed research university partnering with New York State, focusing on public engagement to improve quality of life globally. |
19,921 |
| 7 |
Memorial Sloan Kettering Cancer Centermskcc.org
Specialized teams provide personalized cancer care, conduct innovative research, and train future scientists and clinicians worldwide. |
19,653 |
| 8 |
School of Visual Artssva.edu
A prestigious school educating artists, designers, and creative professionals with distinguished faculty, innovative curriculum, and a global alumni network |
18,280 |
| 9 |
Hospital for Special Surgeryhss.edu
Academic medical center specializing in orthopedics and rheumatology with top national rankings, low complication rates, and multiple regional facilities. |
17,614 |
| 10 |
TED Conferencested.com
Discovering and promoting powerful ideas globally to inspire change, shift perspectives, and create positive impact across communities and disciplines. |
16,033 |
| 11 |
Montefiore Health Systemmontefiore.org
Premier academic health system providing specialized medical education, innovative research, advanced technology, and coordinated care for diverse populations. |
11,619 |
| 12 |
University of Rochesterrochester.edu
Private research institution providing undergraduate and graduate degrees across seven schools while operating a major health system and NCAA athletics program. |
11,592 |
| 13 |
The Mount Sinai Hospitalmountsinai.org
Provides distinguished patient care, conducts transformative medical research, and advances biomedical education across multiple hospital campuses and an extensive network of outpatient services. |
10,004 |
| 14 |
Rochester Institute of Technologyrit.edu
A diverse and collaborative community of creators and innovators leveraging technology, arts, and design to shape the future and improve the world |
9,197 |
| 15 |
University of Rochester Medicineurmc.rochester.edu
Academic medical center providing advanced patient care, conducting disease research, and educating future healthcare professionals including doctors, dentists, and nurses. |
8,483 |
| 16 |
McGraw Hillmheducation.com
Global education company providing innovative learning resources, supporting diverse educators and learners with accessible, inclusive, and personalized educational solutions worldwide. |
8,230 |
| 17 |
Columbia University Irving Medical Centercuimc.columbia.edu
A leading clinical, research, and educational institution providing patient care, medical education, and public health services in northern Manhattan |
7,913 |
| 18 |
Icahn School of Medicine at Mount Sinaiicahn.mssm.edu
A leading medical school and research institution dedicated to training, research, and patient care to advance biomedical discoveries and improve outcomes |
7,423 |
| 19 |
Binghamton Universitybinghamton.edu
A top public university in the Northeast offering broad education, vibrant research programs, financial accessibility, diverse student body, and unique academic opportunities |
7,412 |
| 20 |
Teach For Americateachforamerica.org
Network of educators teaching at least two years, partnering to empower students and promote educational excellence for all. |
6,785 |
| 21 |
The New Schoolnewschool.edu
Innovative university in NYC offering diverse programs in design, liberal arts, performing arts, social research, and public engagement to cultivate progressive minds |
6,474 |
| 22 |
The College Boardcollegeboard.org
Nonprofit organization providing college readiness programs, standardized testing, and resources to help students prepare for higher education. |
6,221 |
| 23 |
Fashion Institute of Technologyfitnyc.edu
Internationally recognized college in New York City for design, fashion, art, communications, and business. A hub for creative and business education. |
5,961 |
| 24 |
Fordham Universityfordham.edu
Private Jesuit university in New York City offering undergraduate, graduate, doctoral, and dual-degree programs with a strong alumni network. |
5,910 |
| 25 |
Stony Brook Medicinestonybrookmedicine.edu
A leading academic medical center with health sciences schools, research, and clinical care teams delivering innovative ideas in healthcare to patients worldwide |
5,786 |
| 26 |
Hunter Collegehunter.cuny.edu
A leading public college in Manhattan offering undergraduate and graduate programs in various fields, educating students to serve their communities and pursue success |
5,136 |
| 27 |
SEO (Sponsors for Educational Opportunity)seo-usa.org
The company provides academic and career support programs for underserved youth, helping them access college, internships, and jobs in various sectors |
4,709 |
| 28 |
High School for Teaching and The Professionsnewvisionsk12.org
A community of educators and students dedicated to promoting independent thinking, academic achievement, career exploration, and personal growth in a supportive, personalized setting |
4,481 |
| 29 |
Teachers Pay Teachersteacherspayteachers.com
Platform offering extensive educator-created teaching resources and digital tools, supporting millions of PreK-12 teachers and schools nationwide. |
4,366 |
| 30 |
Hofstra Universityhofstra.edu
Offers undergraduate and graduate programs across various fields with small classes, dedicated faculty, and access to New York City opportunities. |
4,341 |
| 31 |
Rensselaer Polytechnic Instituterpi.edu
A pioneering technological research university focused on advancing scientific and technological innovation, educating future leaders, and addressing global challenges for over 195 years |
4,257 |
| 32 |
Wildlife Conservation Societywcs.org
Global wildlife conservation organization protecting wilderness, oceans, and wildlife through science, on-the-ground conservation efforts, education, and partnerships in 60 countries |
4,131 |
| 33 |
Pace Universitypace.edu
University offering inspired academics, real-world experiences, and dedicated mentoring, located in New York for ambitious students. |
4,059 |
| 34 |
SUNY Downstate Health Sciences Universitydownstate.edu
Leading urban medical center offering education in medicine, nursing, public health, and health professions with an affiliated university hospital. |
3,757 |
| 35 |
Long Island Universityliu.edu
Provides access to diverse higher education programs, including pharmacy, global studies, and online courses, with a focus on academic excellence and community service |
3,707 |
| 36 |
Rochester City School Districtrcsdk12.org
An educational institution in Rochester, NY, serving over 26,000 students with a focus on equity, individual development, and preparing students for success in society |
3,697 |
| 37 |
Queens Collegeqc.cuny.edu
Queens College offers over 170 programs in a diverse academic environment, ranking in the top 1% for student economic mobility Enjoy urban amenities and campus facilities |
3,646 |
| 38 |
Teach For Allteachforall.org
Supports a global network of independent organizations to provide equitable education, recruit promising leaders, drive systemic changes, and expand educational opportunities |
3,591 |
| 39 |
St. Peter's Health Partnerssphp.com
A large integrated not-for-profit healthcare network providing high-quality, compassionate care to thousands daily across the Capital Region |
3,580 |
| 40 |
St. John's Universitystjohns.edu
Leading Catholic university offering superb academic programs, diverse student life, and preparing graduates to become leaders in their professions and communities |
3,566 |
| 41 |
The City College of New Yorkccny.cuny.edu
Offering high quality and affordable education in a variety of disciplines, emphasizing social change and academic excellence, with diverse programs and research opportunities |
3,528 |
| 42 |
Pratt Institutepratt.edu
Pratt Institute offers diverse undergraduate and graduate programs in art, design, architecture, and more, focusing on creativity, diversity, and sustainability |
3,340 |
| 43 |
Brooklyn Collegebrooklyn.edu
Innovative liberal arts institution offering over 120 undergraduate and graduate degree programs in various disciplines with affordable tuition Located in an urban environment with rich student life |
3,317 |
| 44 |
ASME (The American Society of Mechanical Engineers)asme.org
Leading international organization enabling engineers to collaborate, share knowledge, and develop skills to address real-world challenges and promote engineering's vital role in society |
3,274 |
| 45 |
Bryant & Stratton Collegebryantstratton.edu
A career-focused, private, nonprofit college offering real world education in various fields, with flexible curriculum for students of all backgrounds |
3,269 |
| 46 |
Success Academy Charter Schoolsjobs.successacademies.org
A New York City-based network of public charter schools offering world-class training and mentorship for diverse individuals to join their team |
3,122 |
| 47 |
John Jay College (CUNY)jjay.cuny.edu
A community dedicated to exploring justice, preparing students for careers in public, private, and non-profit sectors through advanced study |
3,094 |
| 48 |
Amplifyamplify.com
Amplify pioneers innovative Kโ12 education, offering engaging curriculum and assessment programs to inspire rigorous learning and support student growth |
3,087 |
| 49 |
Teachers College, Columbia Universitytc.columbia.edu
An educational institution in New York City, affiliated with Columbia University, dedicated to empowering learners and leaders to create positive change |
3,081 |
| 50 |
Parsons School of Design - The New Schoolnewschool.edu
One of the world's top art and design schools, focusing on education, sustainability, and social impact through innovative collaboration and experimentation |
2,995 |
| 51 |
Adelphi Universityadelphi.edu
A highly awarded doctoral research university in New York, offering personalized higher learning with a focus on liberal arts, sciences, and professional training |
2,951 |
| 52 |
Syracuse City School Districtsyracusecityschools.com
Dedicated to providing a vibrant education for a diverse student body, aiming to become the most-improved urban school district in America |
2,940 |
| 53 |
Borough of Manhattan Community Collegebmcc.cuny.edu
A diverse urban-serving college within the CUNY system offering degrees in 31 fields and emphasizing student-centered education and scholarly research |
2,929 |
| 54 |
Ithaca Collegeithaca.edu
A leading liberal arts college offering diverse majors, personal mentorship, and opportunities for personal growth and impactful change in the community and worldwide |
2,921 |
| 55 |
MONTEFIORE MEDICAL CENTERcham.org
A hospital & health care company located in Bronx, New York, providing medical services and care to individuals in the community |
2,905 |
| 56 |
NYU Winthrop Hospitalnyulangone.org
A hospital merged with NYU Langone Health, offering updated company information, news, and job openings on their LinkedIn page |
2,880 |
| 57 |
Albert Einstein College of Medicineeinsteinmed.edu
Offers medical and graduate biomedical degrees, located in New York City, and is a not-for-profit, private, nonsectarian institution. |
2,873 |
| 58 |
St. John's Universitystjohns.edu
Private Catholic university offering diverse academic programs, vibrant student life, service opportunities, and global studies across three New York campuses. |
2,744 |
| 59 |
NYC Teaching Fellowsteachnyc.net
Prepares exceptional teachers committed to serving NYC students in underserved communities, emphasizing practice, passion, and continuous improvement in teaching |
2,717 |
| 60 |
ColorStackcolorstack.org
Dedicated to boosting Black and Latinx representation in tech by empowering graduates to pursue successful careers in computer science |
2,714 |
| 61 |
State University of New York at Oswegoww1.oswego.edu
A pioneering institution with a 160+ year legacy of shaping leaders through diverse academics, research, and global impact in various fields |
2,702 |
| 62 |
Marist Collegemarist.edu
A renowned college in the Hudson Valley known for excellence, technology integration in education, and prime location between NYC and Albany |
2,695 |
| 63 | 2,645 | |
| 64 |
NYU Stern School of Businessstern.nyu.edu
A premier management education school and research center offering transformational programs at graduate, undergraduate, and executive levels in NYC |
2,612 |
| 65 |
Touro Universitytouro.edu
Independent institution providing accredited higher and professional education with Jewish heritage focus, serving diverse communities across multiple campuses. |
2,539 |
| 66 |
Lehman Collegelehman.edu
A top senior college in The Bronx, affiliated with CUNY, fostering economic and social mobility for students and the community |
2,440 |
| 67 |
General Assemblyga.co
Transforms careers and teams with dynamic courses in coding, data, design, and business, offering full-time and part-time options for growth. |
2,438 |
| 68 | 2,425 | |
| 69 |
Teaching Mattersteachingmatters.org
A non-profit focused on enhancing teacher effectiveness in urban schools, supporting 60K+ teachers to improve instructional skills for student success |
2,396 |
| 70 |
NYU Langone HospitalโBrooklynnyulangone.org
NYU Langone Hospital โ Brooklyn is now part of NYU Langone Health Stay updated on company information, news, and job openings |
2,367 |
| 71 |
Columbia Business Schoolcolumbia.edu
This company is a leading business school offering cutting-edge education, connecting students with real-world practitioners to develop future business leaders |
2,348 |
| 72 |
United States Military Academy at West Pointwestpoint.edu
A higher education institution based in NY, United States focused on training future military leaders at West Point Academy |
2,342 |
| 73 |
LaGuardia Community Collegelaguardia.edu
Public educational institution in Queens offering over sixty degree and continuing education programs to empower students and strengthen the local economy through learning. |
2,300 |
| 74 |
Mercy Universitymercy.edu
Leading educational institution empowering students since 1950 to break new ground, achieve impact, and create lasting change in their communities |
2,272 |
| 75 |
The State University of New Yorksuny.edu
A comprehensive higher education system in New York offering over 7,000 programs, with 3 million alumni worldwide |
2,259 |
| 76 |
Vassar Collegevassar.edu
Private liberal arts college offering diverse academic programs, extensive campus life, athletic teams, and rich library resources in New York. |
2,213 |
| 77 |
Suffolk County Community Collegesunysuffolk.edu
Provides affordable, high-quality college education with a wide range of degree programs, certificates, athletics, clubs, and support services Visit wwwsunysuffolkedu for more information |
2,193 |
| 78 |
SUNY Brockportwww2.brockport.edu
Provides world-class education and community engagement through accredited public programs focused on student growth, transformation, and partnerships within the Greater Rochester area. |
2,174 |
| 79 |
Dale Carnegie Trainingdalecarnegie.com
Provides leadership, communication, sales, and customer service training through in-person and online courses to enhance personal and professional skills. |
2,173 |
| 80 |
BronxCare Health Systembronxcare.org
Leading voluntary health system in the Bronx with hospitals, mental health and addiction programs, skilled nursing, outpatient services, and medical education partnerships |
2,080 |
| 81 |
The Brooklyn Hospital Centertbh.org
A community hospital in Downtown Brooklyn providing primary and specialized medical care, diagnostic services, surgery, and training for physicians |
2,036 |
| 82 |
Online Marketing Instituteonlinemarketinginstitute.org
A leading digital marketing education provider offering certification programs and a vast eLearning library with expert instructors worldwide |
2,024 |
| 83 |
YMCA of Greater New Yorkymcanyc.org
A nonprofit organization in New York City empowering youth, improving health, and strengthening community through diverse programs and services |
1,985 |
| 84 |
NYU Grossman School of Medicinemed.nyu.edu
A prestigious medical school training physicians and scientists, advancing patient care, medical education, and scientific research through groundbreaking discoveries and collaboration |
1,952 |
| 85 |
Per Scholasperscholas.org
A nonprofit organization offering free tech training in high-demand skills, creating diverse talent pipelines and advancing equity in tech careers nationwide |
1,943 |
| 86 |
Monroe Community Collegemonroecc.edu
A community college in Rochester, NY, offering a wide range of education and training programs, student activities, and support services |
1,927 |
| 87 |
Children's Aidchildrensaidnyc.org
They provide comprehensive support to children and families in poverty in NYC, helping kids succeed in school and life |
1,904 |
| 88 |
DataCampdatacamp.com
Provides an all-in-one platform offering courses, projects, certifications, and mobile learning to teach data and AI skills globally. |
1,884 |
| 89 |
State University of New York Cortlandwww2.cortland.edu
A comprehensive college in Central New York providing high-quality education in arts, sciences, teacher education, athletics, and more, shaping confident and independent graduates for success |
1,869 |
| 90 |
Hamilton Collegehamilton.edu
Esteemed liberal arts college with a rigorous open curriculum, need-blind admission policy, dedicated faculty, and focus on preparing students for meaningful careers |
1,842 |
| 91 |
Union Collegeunion.edu
Small liberal arts college integrating humanities, social sciences, science, and engineering Focus on rigorous academics, personal growth, pursuing passions, and community engagement |
1,841 |
| 92 |
The Rockefeller Universityrockefeller.edu
A prestigious bioscience institution focused on uncovering life processes, leading to transformative medical breakthroughs with renowned faculty and cutting-edge facilities |
1,833 |
| 93 |
Yonkers Public Schoolsyonkerspublicschools.org
Yonkers Public Schools offers a rigorous education to 27,000 students from diverse backgrounds in grades pre-K through 12, with a focus on empowerment and community engagement |
1,832 |
| 94 |
Skidmore Collegeskidmore.edu
A renowned liberal arts college in Saratoga Springs, NY, educating students to become independent and creative problem-solvers on an expansive campus |
1,829 |
| 95 |
Lourdes Hospitalguthrie.org
A healthcare organization with a 90+ year legacy, providing compassionate, personalized care through a network of doctors, nurses, and associates |
1,794 |
| 96 |
Clarkson Universityclarkson.edu
Higher education institution specializing in STEM fields, offering undergraduate, graduate, executive education, and K-12 STEM programs with strong industry impact. |
1,778 |
| 97 |
Barnard Collegebarnard.edu
A leader in higher education for women, offering a rigorous liberal arts foundation with small classes and access to Columbia University in New York City |
1,776 |
| 98 |
Crouse Healthcrouse.org
Central New York's largest healthcare provider offering maternity care, surgical services, cardiac care, orthopedics, neurosciences, oncology, and nursing education to the community |
1,766 |
| 99 |
New York Medical Collegenymc.edu
A prestigious health sciences college offering advanced degrees in medicine, biomedical sciences, and health sciences, with a focus on research and clinical training opportunities |
1,744 |
| 100 |
Nassau BOCESnassauboces.org
Established in 1967, this public agency provides cost-effective programs and services to 56 local school districts in Nassau County |
1,735 |
Turn this list into pipeline
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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.
More company lists in New York State
- The largest companies in New York State 10,485
- Financial services firms in New York State 1,058
- SaaS companies in New York State 942
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- Venture capital and private equity firms in New York State 678
- Software Development companies in New York State 595
- Real Estate companies in New York State 590
- IT Services and IT Consulting companies in New York State 451
- Retail chains in New York State 412
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- Hospitals and Health Care companies in New York State 392
- Venture Capital and Private Equity Principals companies in New York State 365
- AI companies in New York State 306
- Retail Apparel and Fashion companies in New York State 304
- Non-profit Organizations companies in New York State 299
- Critical infrastructure operators in New York State 278
- Higher Education companies in New York State 275
- IT services companies in New York State 275
- AI-native companies in New York State 266
- Technology, Information and Internet companies in New York State 266
- Healthcare providers in New York State 261
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The same list elsewhere in United States
- Education providers in California 498
- Education providers in Texas 291
- Education providers in Pennsylvania 179
- Education providers in Illinois 176
- Education providers in Massachusetts 160
- Education providers in Florida 135
- Education providers in Georgia 119
- Education providers in Virginia 118
- Education providers in North Carolina 114
- Education providers in Michigan 113
- Education providers in Ohio 112
- Education providers in Alabama 99
- Education providers in Washington State 94
- Education providers in Maryland 93
- Education providers in New Jersey 89
- Education providers in Arizona 86
- Education providers in Minnesota 81
- Education providers in Indiana 79
- Education providers in Missouri 70
- Education providers in Wisconsin 70
- Education providers in Tennessee 65
- Education providers in Colorado 62
- Education providers in New York 136
- Education providers in Washington 61