Massachusetts Business by the Numbers: 2026 Company Breakdown

Key findings

• Massachusetts ranks 15th nationally with 1,441,867 companies — 2.2% of all 64,799,929 U.S. companies in the directory.
• Boston is the state’s largest business hub, with 162,726 companies — 11.3% of every company in Massachusetts.
• Business is concentrated in a few metros: Boston, Worcester and Cambridge together hold 16.4% of the state’s companies.
• Industrial & mechanical leads the state’s industries at 418,710 companies (29.0%), across 9 tracked sectors.

How Massachusetts ranks nationally

Massachusetts and its closest neighbours by total company count. Select a state to open its own study.

Top Massachusetts cities by number of companies

These 10 cities account for 25.5% of all companies in Massachusetts. Select any city to browse its full company list.

Browse all Massachusetts companies →

Massachusetts companies by industry

Every company is classified by its primary industry using NAICS/SIC codes. Select a sector to see those Massachusetts companies.

What the numbers show

Massachusetts’s 1,441,867 companies place it 15th nationally, 2.2% of the U.S. total. Activity clusters in its largest metros — Boston, Worcester and Cambridge alone account for 16.4% of the state’s companies — while industrial & mechanical is the dominant sector at 29.0%. For buyers and sellers, that means the deepest pools of suppliers and manufacturers sit in a handful of cities and one or two sectors; the charts above link straight into each so you can shortlist by capability and region.

Methodology

Figures reflect companies listed in Factur’s U.S. business directory as of 2026, classified by headquarters city and primary industry using NAICS/SIC codes. “Companies” includes manufacturers, suppliers, and B2B businesses of all sizes; counts are directory totals, not official census figures, and percentages are computed against the Massachusetts directory total. Data compiled by Factur, a sales and marketing firm for B2B manufacturers.