Businesses in Boone County, Illinois

As of October 20, 2026, ListRiver's records show 2,444 active registered businesses in Boone County, Illinois, the 27th most among Illinois counties. 60% are LLCs. 37 were formed in September 2026.

From official Illinois registry records, updated weekly. Look up a Illinois business by name.

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Businesses on record

2,444

Formed in the last 12 months

419

Formed in September

With a phone number

13%

323 records

New Boone County businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 37 new businesses formed in September 2026

Entity types

LLCs1,459 · 60%
Corporations774 · 32%
Nonprofits206 · 8%
Other3 · 0%
LLPs1 · 0%
Limited partnerships1 · 0%

Top cities

Belvidere1,640 · 67%
Poplar Grove392 · 16%
Caledonia217 · 9%
Garden Prairie92 · 4%
Capron91 · 4%
Rockford9 · 0%
Cary1 · 0%
Rosemont1 · 0%
Kingston1 · 0%

Top ZIP codes

ZIP 610081,648 · 67%
ZIP 61065395 · 16%
ZIP 61011218 · 9%
ZIP 6103892 · 4%
ZIP 6101291 · 4%

Newest business names registered in Boone County

Get all 2,444 Boone County businesses · see price Just the 88 formed in the last 90 days · see price

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This is a small sample, not the full list. To keep automated scrapers from copying our data, we only show a handful of records on public pages. Your downloaded list includes every matching business.

Business	City	Type	Formed
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Poplar Grove	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Poplar Grove	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Garden Prairie	LLC	Oct 2026
Name hidden	Capron	LLC	Oct 2026
Name hidden	Poplar Grove	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	LLC	Oct 2026
Name hidden	Belvidere	Corporation	Oct 2026
Name hidden	Belvidere	Corporation	Oct 2026
Name hidden	Belvidere	Corporation	Oct 2026
Name hidden	Belvidere	LLC	Sep 2026
Name hidden	Belvidere	LLC	Sep 2026

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Common questions about Boone County businesses

How many businesses are registered in Boone County, Illinois?

ListRiver has 2,444 active registered businesses in Boone County, Illinois on record as of October 20, 2026, from official Illinois business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Boone County, Illinois in September 2026?

37 businesses on record in Boone County, Illinois were formed in September 2026.

How many new businesses opened in Boone County, Illinois in the last 12 months?

419 businesses on record in Boone County, Illinois were formed in the 12 months through September 2026.

What is the most common type of business in Boone County, Illinois?

LLCs are the most common: 1,459 of 2,444 businesses on record (60%), followed by Corporations with 774 (32%).

Where does this data come from?

From Illinois's official business registry. ListRiver loads each new state file, standardizes it, removes duplicates and updates its database weekly. Email and industry details are added from SMBCredit.net where available.

How do I get a list of businesses in Boone County, Illinois?

Use ListRiver's list builder to filter Boone County, Illinois businesses by entity type, formation date, industry and contact details, see the exact count and price, and download a CSV. Every list includes monthly refresh files.

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/illinois/boone-county" title="New businesses in Boone County, Illinois by month" width="100%" height="370" style="border:0" loading="lazy"></iframe><p style="font:13px sans-serif;margin:4px 0 0">Source: <a href="https://listriver.com/business-lists/illinois/boone-county">Businesses in Boone County, Illinois</a>, ListRiver</p></div>

About this data

Counts come from official Illinois business registry records on file with ListRiver, current as of October 20, 2026. They include businesses that are active on the state register; dissolved and defunct entities are excluded. Contact details are added from SMBCredit.net where available. Formation months reflect the registration date the state reports. See the methodology for sources, update schedules and known limits.