District of Columbia Business by the Numbers: 2026 Company Breakdown

Key findings

• District of Columbia ranks 43rd nationally with 230,034 companies — 0.4% of all 64,799,929 U.S. companies in the directory.
• Washington is the state’s largest business hub, with 228,472 companies — 99.3% of every company in District of Columbia.
• Business is concentrated in a few metros: Washington together hold 99.3% of the state’s companies.
• Industrial & mechanical leads the state’s industries at 90,636 companies (39.4%), across 5 tracked sectors.

How District of Columbia ranks nationally

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

Top District of Columbia cities by number of companies

These 1 cities account for 99.3% of all companies in District of Columbia. Select any city to browse its full company list.

Browse all District of Columbia companies →

District of Columbia companies by industry

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

What the numbers show

District of Columbia’s 230,034 companies place it 43rd nationally, 0.4% of the U.S. total. Activity clusters in its largest metros — Washington alone account for 99.3% of the state’s companies — while industrial & mechanical is the dominant sector at 39.4%. 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 District of Columbia directory total. Data compiled by Factur, a sales and marketing firm for B2B manufacturers.