Idaho Business by the Numbers: 2026 Company Breakdown

Key findings

• Idaho ranks 34th nationally with 404,293 companies — 0.6% of all 64,799,929 U.S. companies in the directory.
• Boise is the state’s largest business hub, with 83,562 companies — 20.7% of every company in Idaho.
• Business is concentrated in a few metros: Boise, Meridian and Idaho Falls together hold 33.3% of the state’s companies.
• Industrial & mechanical leads the state’s industries at 104,998 companies (26.0%), across 6 tracked sectors.

How Idaho ranks nationally

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

Top Idaho cities by number of companies

These 8 cities account for 51.6% of all companies in Idaho. Select any city to browse its full company list.

Browse all Idaho companies →

Idaho companies by industry

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

What the numbers show

Idaho’s 404,293 companies place it 34th nationally, 0.6% of the U.S. total. Activity clusters in its largest metros — Boise, Meridian and Idaho Falls alone account for 33.3% of the state’s companies — while industrial & mechanical is the dominant sector at 26.0%. 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 Idaho directory total. Data compiled by Factur, a sales and marketing firm for B2B manufacturers.