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13,135 companies in Joliet, Illinois.
Find 13,135 companies in Joliet, Illinois. From manufacturers to industrial suppliers, each listing carries the firm's address, website, size, and NAICS/SIC codes. You can also browse nearby cities such as Chicago, Naperville, Rockford.
Of the 13,036 with a known headcount, 98% employ 1-50 people and 6 employ more than 1,000. 98% of those reporting revenue are under $10M, while 1 report more than $1B.
These pages show the first 120 of 13,135 companies. Narrow the list with the filters above or open one of the related lists below to see the rest.
Joliet, Illinois companies by size and revenue
| Employees | Companies | Share |
|---|---|---|
| 1-50 | 12,789 | 98.1% |
| 51-200 | 185 | 1.4% |
| 201-1000 | 56 | 0.4% |
| 1001-5000 | 6 | 0.0% |
| 5001+ | 0 | 0.0% |
| Revenue | Companies | Share |
|---|---|---|
| Under $10M | 12,614 | 98.3% |
| $10M-$50M | 174 | 1.4% |
| $50M-$250M | 34 | 0.3% |
| $250M-$1B | 7 | 0.1% |
| $1B+ | 1 | 0.0% |
Share is of companies with a known value — 13,036 with headcount and 12,830 with revenue on file, as of Jul 17, 2026.
Frequently asked questions
How many companies are in Joliet, Illinois?
13,135 companies in the directory are located in Joliet, Illinois.
How many large companies are in Joliet, Illinois?
24 of the 13,135 companies in Joliet, Illinois employ more than 500 people, and 1 report over $1 billion in annual revenue. See the size and revenue breakdown above for the full distribution.
What size are most Joliet, 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 12,830 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.