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508,039 companies in Industrial & mechanical in Illinois.
Explore 508,039 Industrial & mechanical in Illinois listed with contact details, employee size, revenue, and NAICS/SIC codes. Compare suppliers and service providers side by side and reach the right companies directly, or view the same industry in Industrial & mechanical in California, Industrial & mechanical in Florida, Industrial & mechanical in Texas.
Industrial & mechanical in Illinois companies by size and revenue
| Employees | Companies | Share |
|---|---|---|
| 1-50 | 495,585 | 97.6% |
| 51-200 | 9,030 | 1.8% |
| 201-1000 | 2,729 | 0.5% |
| 1001-5000 | 391 | 0.1% |
| 5001+ | 197 | 0.0% |
| Revenue | Companies | Share |
|---|---|---|
| Under $10M | 498,217 | 98.3% |
| $10M-$50M | 7,043 | 1.4% |
| $50M-$250M | 1,409 | 0.3% |
| $250M-$1B | 249 | 0.0% |
| $1B+ | 146 | 0.0% |
Share is of companies with a known value — 507,932 with headcount and 507,064 with revenue on file, as of Jul 17, 2026.
Frequently asked questions
How many Industrial & mechanical in Illinois are there?
There are 508,039 Industrial & mechanical in Illinois in the directory. Use the filters to narrow by employee count, revenue, or NAICS/SIC code.
How many large companies are in Industrial & mechanical in Illinois?
1,295 of the 508,039 companies in Industrial & mechanical in Illinois employ more than 500 people, and 146 report over $1 billion in annual revenue. See the size and revenue breakdown above for the full distribution.
What size are most Industrial & mechanical in Illinois companies?
Most are small and mid-sized businesses: the size and revenue tables above show the full spread, from under $10M up to $1B+, across the 507,064 companies with revenue on file.
What information is included for each company?
Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.
Where does this directory come from?
Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.