General business services
1,496 companies
SIC 7389
Companies in Stamford
Behind every street in Stamford sits a business. 35,272 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 1,496 companies, roughly 4% of everything that does business in the city.
35,272 businesses indexed
Charter Communications, INC.Charter Communications, INC.
| 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 | Charter Communications, INC. | USA | Stamford | 400 Washington Blvd | Ct | 06902-6641 | corporate.***** | 1993 | $54,774,000,000 | 91,900 | Corporation | 1856 | 3637127 |
| 2 | CCO Holdings, LLC | USA | Stamford | 400 Atlantic St | Ct | 06901-3512 | charter.***** | 2003 | $54,774,000,000 | 91,900 | Corporation | 1856 | 3669223 |
| 3 | CCO Holdings Capital CORP. | USA | Stamford | 400 Atlantic St | Ct | 06901-3512 | charter.***** | 2003 | $54,607,000,000 | 304 | Corporation | 1856 | 3703982 |
| 4 | Philip Morris International INC. | USA | Stamford | 677 Washington Blvd Ste 1100 | Ct | 06901-3717 | uspmi.***** | 1987 | $40,648,000,000 | 84,900 | Corporation | 637 | 06702815 |
| 5 | Equinor Us Holdings INC. | USA | Stamford | 600 Washington Blvd 8th Fl | Ct | 06901-3726 | equinor.***** | 1987 | $24,004,071,758 | 904 | Corporation | 2893 | 2125856 |
| 6 | Equinor Marketing & Trading (us) INC. | USA | Stamford | 600 Washington Blvd 8th Fl | Ct | 06901-3726 | equinor.***** | 1997 | $23,877,850,000 | 5 | Corporation | 2893 | 2788463 |
| 7 | Synchrony Financial | USA | Stamford | 777 Long Ridge Rd | Ct | 06902-1247 | synchrony.***** | 1932 | $23,121,000,000 | 20,000 | Corporation | 35 | 3703204 |
| 8 | United Rentals, INC. | USA | Stamford | 100 Stamford Pl Ste 700 | Ct | 06902-9200 | unitedrentals.***** | 1997 | $16,099,000,000 | 28,500 | Corporation | 1469 | 2922505 |
| 9 | United Rentals (north America), INC. | USA | Stamford | 100 Stamford Pl Ste 700 | Ct | 06902-9200 | unitedrentals.***** | 1997 | $15,345,000,000 | 27,900 | Corporation | 1469 | 8391716 |
| 10 | Spectrum Management Holding Company, LLC | USA | Stamford | 400 Atlantic St | Ct | 06901-3512 | charter.***** | 2016 | $9,536,278,564 | 16,000 | Corporation | 1856 | 5752243 |
| 11 | Time Warner Cable Enterprises LLC | USA | Stamford | 400 Atlantic St Ste 6 | Ct | 06901-3533 | jobs.***** | 1992 | $9,536,278,564 | 16,000 | Corporation | 1856 | 5122296 |
| 12 | Gartner, INC. | USA | Stamford | 56 Top Gallant Rd | Ct | 06902-7747 | gartner.***** | 1979 | $6,497,226,000 | 20,244 | Corporation | 171 | 2232152 |
| 13 | Webster Financial CORPORATION | USA | Stamford | 200 Elm St | Ct | 06902-3800 | websterbank.***** | 1986 | $4,423,027,000 | 4,601 | Corporation | 259 | 2101118 |
| 14 | Itt INC. | USA | Stamford | 100 Washington Blvd Fl 6 | Ct | 06902-9302 | itt.***** | 1920 | $3,938,500,000 | 11,600 | Corporation | 552 | 2015122300583 |
| 15 | Redco CORPORATION | USA | Stamford | 100 Stamford Pl | Ct | 06902-6740 | craneco.***** | 2022 | $3,374,900,000 | 11,000 | Corporation | 26 | 2058602 |
| 16 | Equinor Natural Gas LLC | USA | Stamford | 600 Washington Blvd Ste 800 | Ct | 06901-3726 | equinor.***** | 2003 | $2,380,331,000 | 15 | Corporation | 2893 | 3639479 |
| 17 | Crane Company | USA | Stamford | 100 Stamford Pl | Ct | 06902-6740 | craneco.***** | 1855 | $2,305,000,000 | 7,100 | Corporation | 141 | 6822882 |
| 18 | Ubs Americas INC. | USA | Stamford | 600 Washington Blvd | Ct | 06901-3726 | rbs.***** | 2000 | $2,104,711,700 | 21,000 | Corporation | 1796 | 3257597 |
| 19 | Hexcel CORPORATION | USA | Stamford | 281 Tresser Blvd Fl 16 | Ct | 06901-3284 | hexcel.***** | 1946 | $1,893,900,000 | 5,563 | Corporation | 70 | 2003924 |
| 20 | Star Group, L.P. | USA | Stamford | 9 W Broad St Ste 310 | Ct | 06902-3758 | stargrouplp.***** | 1995 | $1,784,418,000 | 3,024 | Partnership of unknown type | 130 | 2544224 |
| 21 | Harman International Industries Incorporated | USA | Stamford | 400 Atlantic St Ste 15 | Ct | 06901 | harman.***** | 1980 | $1,696,933,839 | 33,521 | Corporation | 807 | 886255 |
| 22 | Americares Foundation, INC. | USA | Stamford | 88 Hamilton Ave | Ct | 06902-3100 | americares.***** | 1982 | $1,560,789,806 | 231 | Corporation | N/A | 0095105 |
| 23 | World Wrestling Entertainment, LLC | USA | Stamford | 707 Washington Blvd | Ct | 06901-3729 | wwe.***** | 1980 | $1,291,523,000 | 890 | Corporation | 261 | 2133300 |
| 24 | Stamford Health, INC. | USA | Stamford | 1 Hospital Plz | Ct | 06904 | shccu.***** | 1983 | $1,142,244,000 | 1,978 | Corporation | 13 | 0145889 |
| 25 | Henkel Consumer Goods INC. | USA | Stamford | 200 Elm St | Ct | 06902-3800 | henkel-northamerica.***** | 2004 | $1,131,284,615 | 1,278 | Corporation | 461 | 3865997 |
Showing 25 of 35,272 companies
Request Free SampleLargest companies in Stamford
Which company is the largest in Stamford depends on how you measure. You can look at valuation, at revenue or at how many people work there. Valuations are private for most companies, so here we stick to revenue and headcount.
By revenue, Charter Communications, INC. comes first in Stamford. It is part of a group with $54.8 billion in yearly revenue. By headcount, Harman International Industries Incorporated comes first with 33,521 employees. We only looked at the 25,416 corporations in Stamford for this; sole traders, foundations and other legal forms are left out.
The two tables below show how all 35,272 companies in Stamford are spread across revenue and headcount bands.
Yearly revenue
48.1%of companies have less than $100,000 in yearly revenue
| Revenue (USD) | Count | Share |
|---|---|---|
| up to $100,000 | 16,982 | 48.1% |
| $100,000 to $500,000 | 13,394 | 38.0% |
| $500,000 to $1M | 1,205 | 3.4% |
| $1M to $5M | 1,048 | 3.0% |
| $5M to $10M | 167 | 0.5% |
| $10M to $50M | 143 | 0.4% |
| $50M to $100M | 26 | 0.1% |
| $100M to $500M | 43 | 0.1% |
| $500M to $1B | 12 | <0.1% |
| $1B or more | 27 | 0.1% |
| Unknown | 2,225 | 6.3% |
Headcount
86.4%of companies have 1 to 4 employees
| Employees | Count | Share |
|---|---|---|
| 1-4 | 30,459 | 86.4% |
| 5-9 | 2,360 | 6.7% |
| 10-19 | 847 | 2.4% |
| 20-49 | 550 | 1.6% |
| 50-99 | 214 | 0.6% |
| 100-199 | 89 | 0.3% |
| 200-499 | 59 | 0.2% |
| 500-999 | 26 | 0.1% |
| 1,000-4,999 | 21 | 0.1% |
| 5,000-9,999 | 2 | <0.1% |
| 10,000+ | 2 | <0.1% |
| Unknown | 643 | 1.8% |
Source: business register and CompanyData. "Unknown" means no published figure.
Largest industries in Stamford
The biggest industry groups in Stamford by registered company count, with the top five companies by revenue in each.
General Contractors-Single-Family Houses
1,088 companies
SIC 1521
Real estate agents and managers
1,021 companies
SIC 6531
Business Consulting Services, Not Elsewhere Classified
954 companies
SIC 8748
Restaurants and eating places
862 companies
SIC 5812
Management consulting
789 companies
SIC 8742
Investors, Not Elsewhere Classified
789 companies
SIC 6799
Operators of Nonresidential Buildings
774 companies
SIC 6512
All industries in Stamford
Together, general business services, General Contractors-Single-Family Houses and real estate agents and managers make up the top three industries in Stamford, accounting for 10% of the city's commercial activity. The oldest company we can find in Stamford is First United Methodist Church, founded in 1800, with The First County Bank INC not far behind. They are still here, along with 35,270 other businesses in Stamford.
A short train ride from Manhattan, Stamford has grown into one of Connecticut's corporate centers, dense with finance offices, media groups and professional services headquarters. All of them are in our data. Look up a company in the table at the top of this page, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.
- Nonclassifiable Establishments6,030
- Business Services, Not Elsewhere Classified1,496
- General Contractors-Single-Family Houses1,088
- Real Estate Agents and Managers1,021
- Business Consulting Services, Not Elsewhere Classified954
- Eating Places862
- Management Consulting Services789
- Investors, Not Elsewhere Classified789
- Operators of Nonresidential Buildings774
- Legal Services565
- Other industries20,904
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Open the search toolFrequently Asked Questions
Common questions about searching, filtering, and ordering Stamford company data.
Our Stamford business directory currently lists every registered legal entity with a Stamford address in the official United States business register. The exact count is shown live at the top of this page.
Stamford 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 Stamford list never goes stale.
Yes. Every Stamford record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.
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