| # | Company | Employees |
|---|---|---|
| 1 |
New York City Housing Authority (NYCHA)nyc.gov
Leading public housing authority in North America, providing safe, affordable housing and community services to low- and moderate-income New Yorkers through innovative partnerships and financing options |
5,494 |
| 2 |
City of New Yorkcityjobs.nyc.gov
Provides diverse public services including infrastructure, social services, health, safety, technology, and urban planning for New York City residents. |
5,477 |
| 3 |
NYC Department of Parks & Recreationnyc.gov
Leading provider of recreational facilities and programs in New York City, managing parks, sports events, cultural festivals, public pools, athletic fields, and more |
4,913 |
| 4 |
New York Stateny.gov
Supports New York's transition to clean energy through innovative programs, technical expertise, and funding for renewable energy and energy efficiency projects. |
4,150 |
| 5 |
NYC Administration for Children's Servicesnyc.gov
A child and family serving agency in NYC supporting children and families through child welfare, juvenile justice, and early care services |
3,881 |
| 6 |
NYC Department of Social Servicesnyc.gov
An integrated department combining administrative units to provide seamless client services and shared services for better agency management |
3,572 |
| 7 |
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 |
1,722 |
| 8 |
NYC Department of Housing Preservation & Developmentnyc.gov
A leading municipal agency in New York City, dedicated to preserving affordable housing, protecting tenants, and fostering the city's diverse neighborhoods |
1,496 |
| 9 |
NYC Human Resources Administrationnyc
A leading NYC social services agency providing assistance to over three million New Yorkers annually through various public assistance programs |
1,458 |
| 10 |
NYC Department of Buildingsnyc.gov
Enforcing Building Code and Zoning Resolution in NYC to ensure safe and lawful use of buildings and properties for compliant development |
1,273 |
| 11 |
NYC Department of Homeless Servicesnyc.gov
The company collaborates with nonprofits to provide shelter and services to homeless New Yorkers, helping them stabilize their lives and achieve permanent housing |
1,206 |
| 12 |
New York City Councilcouncil.nyc.gov
Legislative body overseeing NYC agencies, making land use decisions, approving budget, and legislating on various subjects as an equal partner with the Mayor |
1,019 |
| 13 |
NYC Department of Financenyc.gov
The Department of Finance in NYC manages revenue collection, property values, parking tickets, pension system, and offers competitive benefits |
1,014 |
| 14 |
NYC Citywide Administrative Serviceslinktr.ee
This organization supports NYC agencies in recruiting, managing buildings, acquiring property, purchasing goods, overseeing a sustainable vehicle fleet, and reducing carbon emissions |
896 |
| 15 |
Board of Elections - City of New Yorkvoting.nyc
This company in NYC conducts fair elections, handles voter registration, educates the public, and ensures all eligible voters can exercise their right to vote |
894 |
| 16 |
NYC Office of Chief Medical Examinernyc.gov
The company investigates deaths in New York City, providing answers to families, victims, and communities during times of need |
878 |
| 17 |
New York City Economic Development Corporationedc.nyc
A nonprofit organization in New York City working towards a vibrant economy through business, sector growth, neighborhood development, and infrastructure improvement |
675 |
| 18 |
NYC Department of Youth & Community Developmentnyc.gov
A city department in New York invests in community programs to alleviate poverty, support youth, and improve quality of life through collaboration and investments |
636 |
| 19 |
Board of Elections in the City of New Yorkvote.nyc
Specializes in operating within a high pressure environment to provide effective solutions and meet the demands of the industry |
586 |
| 20 |
Office of the New York City Comptrollercomptroller.nyc.gov
This company promotes the financial health and integrity of New York City government, ensuring accountability, transparency, and long-term sustainability for all residents |
521 |
| 21 |
NYC Probationnyc.gov
A leader in community corrections in New York City, DOP helps individuals on probation achieve a "New Now" through accountability and support services #JoinDOP |
514 |
| 22 |
New York City Department of Consumer and Worker Protectionnyc.gov
The company protects and enhances the daily economic lives of New Yorkers by enforcing consumer protection and workplace laws, licensing businesses, and empowering consumers |
434 |
| 23 |
New York State Homes & Community Renewalhcr.ny.gov
Statewide housing resource preserving housing affordability, creating affordable housing opportunities, enforcing rent regulations, and funding services for low to moderate-income households and special needs populations |
384 |
| 24 |
NYC Department of City Planningnyc.gov
City Planning department in NYC focuses on strategic growth, land use policies, zoning regulations, neighborhood improvement, housing affordability, economic development, and infrastructure investments |
348 |
| 25 |
NYC Office of the Mayornyc.gov
Government office overseeing all aspects of New York City, including services, public property, agencies, and law enforcement under the Mayor's leadership |
344 |
| 26 |
NYC Department of Small Business Servicesnyc.gov
An organization in New York City focuses on job connections, business development, and neighborhood growth to enhance economic opportunity for all residents |
338 |
| 27 |
New York City Mayor's Office of Management and Budgetnyc.gov
The company is the chief financial agency for the City of New York, overseeing budgets, evaluating services, providing economic information, and managing borrowing programs |
332 |
| 28 |
NYC Department for the Agingnyc.gov
DFTA is dedicated to supporting the dignity and quality of life of New York City's diverse older adults and caregivers through service, advocacy, and education |
321 |
| 29 |
NYC Taxi & Limousine Commissionnyc.gov
Regulatory agency in New York City overseeing licensing and safety of taxis, for-hire vehicles, and drivers, performing inspections and enforcing regulations |
316 |
| 30 |
NYC Mayor's Office of Contract Servicesnyc.gov
MOCS is a NYC agency dedicated to improving operations, promoting equity, and simplifying doing business with the City They value diversity and inclusion |
166 |
| 31 |
U.S. Attorney's Office for the Southern District of New Yorkjustice.gov
Prosecutes federal law violations and represents US government in criminal and civil cases, focusing on terrorism, white collar crime, civil fraud, and more |
160 |
| 32 |
A-Square Grouplinktr.ee
This global technology services company specializes in artificial intelligence, digital infrastructure, IT, and emerging technologies for government agencies and brands worldwide |
16 |
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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 10, 2026.
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