Professional Services Companies in New York: 127 Verified Firms
Secwyn has verified 127 professional services companies based in New York. The largest groups are Temporary Help Services (32); Employment Placement Agencies (28); and Architectural Services (27). By headcount, 75% have 51–200 employees, 18% have 201–500 employees, and 7% fall in other size bands. Size is not yet confirmed for 3. New York has the most (61), followed by Rochester (6) and Buffalo (5). Of the 34 whose customers we could confirm, 97% sell to businesses and 6% to consumers.
Company size
- 11–50 employees2 · 2%
- 51–200 employees93 · 73%
- 201–500 employees22 · 17%
- 501–1,000 employees7 · 6%
- Size not confirmed3 · 2%
Who they sell to, among the 34 companies where we could confirm it: businesses 97%, consumers 6%, government 24%. A company can sell to more than one.
Top cities
- New York61 · 48%
- Rochester6 · 5%
- Buffalo5 · 4%
- Melville5 · 4%
- Brooklyn4 · 3%
- North New Hyde Park3 · 2%
Cities with fewer than 3 companies are not listed.
Largest sub-industries
| Sub-industry | NAICS | Companies |
|---|---|---|
| Temporary Help Services | 561320 | 32 |
| Employment Placement Agencies | 561311 | 28 |
| Architectural Services | 541310 | 27 |
| Engineering Services | 541330 | 16 |
| Executive Search Services | 561312 | 6 |
| Other Services to Buildings and Dwellings | 561790 | 3 |
| Administrative Management and General Management Consulting Services | 541611 | 2 |
| Landscaping Services | 561730 | 2 |
A sample of these companies
A few of the 127 professional services companies in New York. Names, websites and contacts are shown after you sign up.
Company #1 · name shown after sign-up
Temporary Help Services · 501–1,000 employees
Company #2 · name shown after sign-up
Architectural Services · 51–200 employees · New York
Company #3 · name shown after sign-up
Engineering Services · 201–500 employees · Rochester
Company #4 · name shown after sign-up
Administrative Management and General Management Consulting Services · 501–1,000 employees · New York
Company #5 · name shown after sign-up
Employment Placement Agencies · 11–50 employees · New York
Company #6 · name shown after sign-up
Landscaping Services · 51–200 employees
Find the New York professional services companies that fit what you sell
Describe what you sell and Secwyn shows the companies most likely to buy it, with the reasons for each match. Sign up free and your first 3 company reveals are on us: name, website, description with its source, contact channels and the roles to contact.
How Secwyn verifies these companies
- Every company description is a sentence visible on the company's own website. Inside the product, each one links to its source page.
- Each company has a NAICS industry code, the US government standard for classifying businesses.
- All companies are based in the United States. Location and size come from public sources, including company filings and People Data Labs.
Data updated October 6, 2026.