General business services
3,096 companies
SIC 7389
Companies in Boston
Behind every street in Boston sits a business. 94,312 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 3,096 companies, roughly 3% of everything that does business in the city.
94,312 businesses indexed
Commonwealth Of MassachusettsCommonwealth Of Massachusetts
| 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 | Commonwealth Of Massachusetts | USA | Boston | 1 Ashburton Pl Fl 9 | Suffolk | 02108-1518 | macomptroller.***** | 1788 | $86,383,169,000 | 59,253 | Corporation | 1781 | N/A |
| 2 | Liberty Mutual Holding Company INC. | USA | Boston | 175 Berkeley St | Suffolk | 02117 | libertymutual.***** | 2002 | $49,412,000,000 | 45,000 | Corporation | 1190 | 000805238 |
| 3 | State Street Bank And Trust Company | USA | Boston | 1 Congress St | Suffolk | 02114 | statestreet.***** | 1792 | $21,408,000,000 | 50,555 | Corporation | 285 | 041867445 |
| 4 | Santander Holdings USA, INC. | USA | Boston | 75 State St | Suffolk | 02109 | santanderbank.***** | 2009 | $15,917,681,000 | 10,300 | Corporation | 9590 | 07018823 |
| 5 | The Boston Consulting Group INC | USA | Boston | 200 Pier 4 Blvd Ste 1000 | Suffolk | 02210-2655 | bcgplatinion.***** | 1967 | $14,400,000,000 | 33,500 | Corporation | 186 | 042432614 |
| 6 | State Street CORPORATION | USA | Boston | 1 Congress St | Suffolk | 02114-2016 | statestreet.***** | 1969 | $13,944,000,000 | 52,000 | Corporation | 285 | 042456637 |
| 7 | Vertex Pharmaceuticals Incorporated | USA | Boston | 50 Northern Ave | Suffolk | 02210-1862 | vrtx.***** | 1989 | $12,001,300,000 | 6,400 | Corporation | 57 | 043039129 |
| 8 | American Tower CORPORATION | USA | Boston | 222 Berkeley St Fl 7 | Suffolk | 02116-3748 | americantower.***** | 2011 | $10,644,600,000 | 4,866 | Corporation | 563 | 4983939 |
| 9 | Fidelity Phillips Street Trust | USA | Boston | 82 Devonshire St | Suffolk | 02109-3614 | N/A | 2006 | $10,241,310,914 | 2 | N/A | N/A | |
| 10 | Lmhc Massachusetts Holdings INC. | USA | Boston | 175 Berkeley St | Suffolk | 02117 | libertymutual.***** | 2001 | $9,705,084,722 | 50,000 | Corporation | 1190 | 000804944 |
| 11 | Liberty Mutual Group INC. | USA | Boston | 175 Berkeley St | Suffolk | 02116-3350 | libertymutual.***** | 2001 | $9,697,603,500 | 50,000 | Corporation | 1190 | 000804945 |
| 12 | Bmc Health System, INC. | USA | Boston | 1 Boston Medical Ctr Pl | Suffolk | 02118-2908 | bmc.***** | 2013 | $8,830,274,000 | 4,200 | Corporation | 43 | N/A |
| 13 | Veolia North America, LLC | USA | Boston | 100 Federal St Bsmt 3 | Suffolk | 02110-1978 | veolianorthamerica.***** | 2008 | $7,114,749,016 | 33,023 | Corporation | 6176 | N/A |
| 14 | Toast, INC. | USA | Boston | 333 Summer St | Suffolk | 02210-1702 | pos.***** | 2011 | $6,153,000,000 | 6,500 | Corporation | 12 | 5085035 |
| 15 | Liberty Mutual Insurance Company | USA | Boston | 175 Berkeley St | Suffolk | 02116-3350 | libertymutual.***** | 1912 | $6,147,968,339 | 50,000 | Corporation | 1190 | 041543470 |
| 16 | Draftkings INC. | USA | Boston | 222 Berkeley St Ste 500 | Suffolk | 02116-3753 | oxfordproperties.***** | 2011 | $6,054,525,000 | 5,500 | Corporation | 43 | E16654302021-6 |
| 17 | Blue Cross And Blue Shield Of Massachusetts Hmo Blue, INC. | USA | Boston | 101 Huntington Ave Ste 1300 | Suffolk | 02199-7611 | bluecrossma.***** | 1997 | $5,851,428,643 | 55 | Corporation | N/A | N/A |
| 18 | City Of Boston | USA | Boston | 1 City Hall Sq Ste 242 | Suffolk | 02201 | cityofbostoncu.***** | 1630 | $5,741,520,000 | 18,760 | Corporation | 300 | N/A |
| 19 | Blue Cross And Blue Shield Of Massachusetts, INC. | USA | Boston | 101 Huntington Ave Ste 1300 | Suffolk | 02199-7611 | bluecrossma.***** | 1937 | $5,379,580,781 | 2,800 | Corporation | 16 | 041045815 |
| 20 | Veolia Environmental Services North America LLC | USA | Boston | 53 State St Ste 14 | Suffolk | 02109-3205 | veolianorthamerica.***** | 2000 | $5,318,383,331 | 32,950 | Corporation | 6176 | N/A |
| 21 | The Connecticut Light And Power Company | USA | Boston | 800 Boylston St Spc 17 | Suffolk | 02199-7050 | eversource.***** | 1927 | $5,240,994,000 | 1,554 | Corporation | 190 | 0282361 |
| 22 | Massachusetts Department Of Transportation | USA | Boston | 10 Park Plz Ste 4160 | Suffolk | 02116 | mass.***** | 1969 | $5,052,563,000 | 6,100 | Corporation | 1781 | N/A |
| 23 | Advent International, L.P. | USA | Boston | 800 Boylston St Ste 500 | Suffolk | 02199-8110 | adventinternational.***** | 1984 | $4,592,788,293 | 37,900 | Corporation | 1644 | 2044184 |
| 24 | The Children's Hospital CORPORATION | USA | Boston | 300 Longwood Ave | Suffolk | 02115 | childrenshospital.***** | 1982 | $4,497,733,000 | 8,000 | Corporation | 31 | N/A |
| 25 | Fmr LLC | USA | Boston | 245 Summer St Ste V4c | Suffolk | 02210-1116 | fidelity.***** | 2023 | $4,346,686,270 | 41,350 | Corporation | 466 | 4403845 |
Showing 25 of 94,312 companies
Request Free SampleLargest companies in Boston
Which company is the largest in Boston 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, Commonwealth Of Massachusetts comes first in Boston. It is part of a group with $86.4 billion in yearly revenue. By headcount, Trustees Of Boston University comes first with 10,400 employees. We only looked at the 61,047 corporations in Boston for this; sole traders, foundations and other legal forms are left out.
The two tables below show how all 94,312 companies in Boston are spread across revenue and headcount bands.
Yearly revenue
41.1%of companies have less than $100,000 in yearly revenue
| Revenue (USD) | Count | Share |
|---|---|---|
| up to $100,000 | 38,728 | 41.1% |
| $100,000 to $500,000 | 37,382 | 39.6% |
| $500,000 to $1M | 4,212 | 4.5% |
| $1M to $5M | 3,702 | 3.9% |
| $5M to $10M | 689 | 0.7% |
| $10M to $50M | 721 | 0.8% |
| $50M to $100M | 116 | 0.1% |
| $100M to $500M | 145 | 0.2% |
| $500M to $1B | 29 | <0.1% |
| $1B or more | 71 | 0.1% |
| Unknown | 8,517 | 9.0% |
Headcount
80.6%of companies have 1 to 4 employees
| Employees | Count | Share |
|---|---|---|
| 1-4 | 76,007 | 80.6% |
| 5-9 | 8,568 | 9.1% |
| 10-19 | 3,458 | 3.7% |
| 20-49 | 2,556 | 2.7% |
| 50-99 | 1,129 | 1.2% |
| 100-199 | 566 | 0.6% |
| 200-499 | 324 | 0.3% |
| 500-999 | 125 | 0.1% |
| 1,000-4,999 | 68 | 0.1% |
| 5,000-9,999 | 8 | <0.1% |
| 10,000+ | 3 | <0.1% |
| Unknown | 1,500 | 1.6% |
Source: business register and CompanyData. "Unknown" means no published figure.
Largest industries in Boston
The biggest industry groups in Boston by registered company count, with the top five companies by revenue in each.
Real estate agents and managers
3,080 companies
SIC 6531
Restaurants and eating places
2,880 companies
SIC 5812
Investors, Not Elsewhere Classified
2,742 companies
SIC 6799
Legal Services
2,441 companies
SIC 8111
Business Consulting Services, Not Elsewhere Classified
2,034 companies
SIC 8748
Operators of Nonresidential Buildings
1,925 companies
SIC 6512
Management Investment Offices, Open-End
1,857 companies
SIC 6722
All industries in Boston
Together, general business services, real estate agents and managers and restaurants and eating places make up the top three industries in Boston, accounting for 10% of the city's commercial activity. The oldest company we can find in Boston is Massachusetts Highway Department, founded in 1788, with State Street Bank And Trust Company not far behind. They are still here, along with 94,310 other businesses in Boston.
Few cities pack as much research into as few square miles as Boston, where hospitals, universities, biotech labs and old money finance drive the local trade. 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 Establishments21,623
- Business Services, Not Elsewhere Classified3,096
- Real Estate Agents and Managers3,080
- Eating Places2,880
- Investors, Not Elsewhere Classified2,742
- Legal Services2,441
- Business Consulting Services, Not Elsewhere Classified2,034
- Operators of Nonresidential Buildings1,925
- Management Investment Offices, Open-End1,857
- Management Services1,734
- Other industries50,900
How you receive Boston business data
Choose how you want to receive the data. Every company comes with 50+ fields, from address and industry to revenue and contact details, sourced from official United States business registers.
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Open the search toolFrequently Asked Questions
Common questions about searching, filtering, and ordering Boston company data.
Our Boston business directory currently lists every registered legal entity with a Boston address in the official United States business register. The exact count is shown live at the top of this page.
Boston 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 Boston list never goes stale.
Yes. Every Boston 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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