General business services
982 companies
SIC 7389
Companies in New Haven
Behind every street in New Haven sits a business. 24,836 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 982 companies, roughly 4% of everything that does business in the city.
24,836 businesses indexed
Yale UniversityYale University
| Company Name | Country | City | Address 1 | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Yale University | USA | New Haven | 105 Wall St | Ct | 06511-8917 | yale.***** | 1701 | $6,154,583,000 | 11,000 | Corporation | 322 | 0527385 |
| 2 | Yale New Haven Hospital, INC. | USA | New Haven | 20 York St | Ct | 06511 | yale.***** | 1985 | $4,571,807,805 | 30,278 | Corporation | 77 | 0267779 |
| 3 | Knights Of Columbus | USA | New Haven | 1 Columbus Plz | Ct | 06510-3325 | kofc.***** | 1882 | $2,548,075,018 | 2,300 | Corporation | 773 | 060416470 |
| 4 | Yale New Haven Health Services CORPORATION | USA | New Haven | 789 Howard Ave | Ct | 06519-1304 | ynhhs.***** | 1983 | $1,102,659,536 | 52,768 | Corporation | 77 | 0150646 |
| 5 | City Of New Haven | USA | New Haven | 165 Church St Fl 2 | Ct | 06510-2010 | edhamiltonworks.***** | 1633 | $1,032,229,805 | 4,500 | Corporation | 51 | 223149569 |
| 6 | Biohaven Pharmaceutical Holding Company LTD. | USA | New Haven | 215 Church St | Ct | 06510-1803 | biohavenpharma.***** | 2022 | $462,509,000 | 928 | Corporation | 779 | 5370906 |
| 7 | East Allen County Schools | USA | New Haven | 1240 State Road 930 E | Allen | 46774-1700 | eacs.***** | 1969 | $273,854,546 | 1,100 | Corporation | 22 | N/A |
| 8 | Achievement First, INC. | USA | New Haven | 470 James St Ste 7 | Ct | 06513-3175 | achievementfirst.***** | 2003 | $273,686,268 | 50 | Corporation | 25 | 0753424 |
| 9 | Arvinas, INC. | USA | New Haven | 395 Winchester Ave | Ct | 06511-1917 | arvinas.***** | 2013 | $262,600,000 | 405 | Corporation | 4 | 5654073 |
| 10 | South Central Connecticut Regional Water Authority | USA | New Haven | 90 Sargent Dr | Ct | 06511 | rwater.***** | 1980 | $161,417,789 | 299 | Corporation | 9 | 060975264 |
| 11 | Yale University Retiree Health Benefits Coverage Trust | USA | New Haven | N/A | Ct | 06520 | N/A | 2011 | $152,225,671 | 2 | N/A | N/A | |
| 12 | Arvinas Operations, INC. | USA | New Haven | 5 Science Park | Ct | 06511-1966 | arvinas.***** | 2013 | $131,400,000 | 20 | Corporation | 4 | 6850498 |
| 13 | Alexion Complement Foundation | USA | New Haven | 100 College St | Ct | 06510-3210 | N/A | 2007 | $110,240,463 | 2 | Corporation | N/A | 208963321 |
| 14 | Cornell Scott-Hill Health CORPORATION | USA | New Haven | 400 Columbus Ave | Ct | 06519-1233 | cornellscott.***** | 1971 | $109,453,723 | 425 | Corporation | 10 | 0055919 |
| 15 | Sargent Manufacturing Company | USA | New Haven | 100 Sargent Dr | Ct | 06536 | sargentlock.***** | 1985 | $82,227,381 | 900 | Corporation | 988 | 2079342 |
| 16 | Alexion Pharma LLC | USA | New Haven | 100 College St | Ct | 06510-3210 | alexionpharma.***** | 2015 | $74,597,687 | 209 | Corporation | 467 | 5731587 |
| 17 | Continuum Of Care, INC. | USA | New Haven | 109 Legion Ave | Ct | 06519-5506 | continuumct.***** | 1966 | $68,519,019 | 500 | Corporation | 13 | 0057822 |
| 18 | Albertus Magnus College | USA | New Haven | 700 Prospect St | Ct | 06511-1224 | albertus.***** | 1925 | $62,216,973 | 250 | Corporation | 2 | 060646520 |
| 19 | Greenchlor, LLC | USA | New Haven | 73 Welton St | Ct | 06511-1523 | N/A | 2008 | $62,123,837 | 1 | Partnership of unknown type | N/A | N/A |
| 20 | The Community Foundation For Greater New Haven INC | USA | New Haven | 70 Audubon St 5f | Ct | 06510-1248 | cfgnh.***** | 1928 | $55,709,123 | 30 | Corporation | N/A | 0129534 |
| 21 | Invivyd, INC. | USA | New Haven | 209 Church St | Ct | 06510 | invivyd.***** | 2020 | $53,426,000 | 122 | Corporation | 4 | 3001612 |
| 22 | New Haven Public Schools | USA | New Haven | 54 Meadow St | Ct | 06519-1719 | nhps.***** | 2007 | $52,083,702 | 712 | Corporation | 59 | N/A |
| 23 | Cablecraft Motion Controls LLC | USA | New Haven | 2110 Summit St | Allen | 46774-9524 | cablecraft.***** | 2021 | $46,396,725 | 300 | Corporation | 12 | 4894886 |
| 24 | Area Cooperative Educational Services CORPORATION | USA | New Haven | 370 James St Ste 303 | Ct | 06513-3091 | aces.***** | 1969 | $45,393,290 | 844 | Corporation | 12 | 1319485 |
| 25 | Planned Parenthood Of Southern New England, INC. | USA | New Haven | 345 Whitney Ave | Ct | 06511-2348 | plannedparenthood.***** | 1939 | $41,045,786 | 225 | Corporation | 19 | 0098961 |
Showing 25 of 24,836 companies
Request Free SampleLargest industries in New Haven
The biggest industry groups in New Haven by registered company count, with the top five companies by revenue in each.
Restaurants and eating places
926 companies
SIC 5812
General Contractors-Single-Family Houses
779 companies
SIC 1521
Real estate agents and managers
618 companies
SIC 6531
Operators of Nonresidential Buildings
601 companies
SIC 6512
Religious Organizations
565 companies
SIC 8661
Offices and Clinics of Doctors of Medicine
554 companies
SIC 8011
Legal Services
478 companies
SIC 8111
All industries in New Haven
Together, general business services, restaurants and eating places and General Contractors-Single-Family Houses make up the top three industries in New Haven, accounting for 11% of the city's commercial activity. The oldest company we can find in New Haven is Yale University, founded in 1701, with Dixwell Ave Congregation United Church Of Christ not far behind. They're still here, along with hundreds of thousands of others.
Yale sets the tone in New Haven, spinning off biotech labs and medical work, while the harbor and a famous pizza tradition keep older trades alive. All of them are in our data. Search New Haven businesses in the live tool below, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.
- Nonclassifiable Establishments3,797
- Business Services, Not Elsewhere Classified982
- Eating Places926
- General Contractors-Single-Family Houses779
- Real Estate Agents and Managers618
- Operators of Nonresidential Buildings601
- Religious Organizations565
- Offices and Clinics of Doctors of Medicine554
- Legal Services478
- Business Consulting Services, Not Elsewhere Classified477
- Other industries15,059
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Common questions about searching, filtering, and ordering New Haven company data.
Our New Haven business directory currently lists every registered legal entity with a New Haven address in the official United States business register. The exact count is shown live at the top of this page.
New Haven records are sourced directly from the official United States business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your New Haven list never goes stale.
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