Construction Companies in New Jersey: 76 Verified Firms
Secwyn has verified 76 construction companies based in New Jersey. The largest groups are Commercial and Institutional Building Construction (15); Plumbing, Heating, and Air-Conditioning Contractors (13); and Other Heavy and Civil Engineering Construction (7). By headcount, 83% have 51–200 employees and 17% have 201–500 employees. Fairfield has the most (4), followed by Cranbury (3).
Company size
- 51–200 employees63 · 83%
- 201–500 employees13 · 17%
Top cities
- Fairfield4 · 5%
- Cranbury3 · 4%
Cities with fewer than 3 companies are not listed.
Largest sub-industries
| Sub-industry | NAICS | Companies |
|---|---|---|
| Commercial and Institutional Building Construction | 236220 | 15 |
| Plumbing, Heating, and Air-Conditioning Contractors | 238220 | 13 |
| Other Heavy and Civil Engineering Construction | 237990 | 7 |
| Electrical Contractors and Other Wiring Installation Contractors | 238210 | 6 |
| Highway, Street, and Bridge Construction | 237310 | 6 |
| Drywall and Insulation Contractors | 238310 | 5 |
| Site Preparation Contractors | 238910 | 5 |
| Roofing Contractors | 238160 | 4 |
A sample of these companies
A few of the 76 construction companies in New Jersey. Names, websites and contacts are shown after you sign up.
Company #1 · name shown after sign-up
Painting and Wall Covering Contractors · 51–200 employees
Company #2 · name shown after sign-up
Plumbing, Heating, and Air-Conditioning Contractors · 201–500 employees
Company #3 · name shown after sign-up
Drywall and Insulation Contractors · 201–500 employees · Fairfield
Company #4 · name shown after sign-up
Commercial and Institutional Building Construction · 51–200 employees
Company #5 · name shown after sign-up
Other Heavy and Civil Engineering Construction · 51–200 employees
Company #6 · name shown after sign-up
Highway, Street, and Bridge Construction · 51–200 employees
Find the New Jersey construction 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.