Businesses in Clinton County, Illinois

As of October 20, 2026, ListRiver's records show 1,843 active registered businesses in Clinton County, Illinois, the 35th most among Illinois counties. 70% are LLCs. 17 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

1,843

Formed in the last 12 months

266

Formed in September

With a phone number

15%

278 records

New Clinton County businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 17 new businesses formed in September 2026

Entity types

LLCs1,283 · 70%
Corporations396 · 21%
Nonprofits158 · 9%
Other6 · 0%

Top cities

Breese367 · 20%
Carlyle365 · 20%
Trenton287 · 16%
New Baden207 · 11%
Aviston196 · 11%
Germantown121 · 7%
Bartelso108 · 6%
Albers88 · 5%
Beckemeyer30 · 2%
Damiansville22 · 1%
St Rose16 · 1%
Hoffman14 · 1%
New Memphis13 · 1%
Belleville1 · 0%
Caseyville1 · 0%

Top ZIP codes

ZIP 62230384 · 21%
ZIP 62231368 · 20%
ZIP 62293287 · 16%
ZIP 62265207 · 11%
ZIP 62216197 · 11%
ZIP 62245121 · 7%
ZIP 62215109 · 6%
ZIP 62218108 · 6%
ZIP 6221930 · 2%
ZIP 6225018 · 1%
ZIP 6226614 · 1%

Newest business names registered in Clinton County

Get all 1,843 Clinton County businesses · see price Just the 44 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	Trenton	LLC	Oct 2026
Name hidden	Carlyle	LLC	Oct 2026
Name hidden	Trenton	LLC	Oct 2026
Name hidden	Aviston	LLC	Oct 2026
Name hidden	Breese	LLC	Oct 2026
Name hidden	Breese	LLC	Oct 2026
Name hidden	Carlyle	LLC	Oct 2026
Name hidden	Breese	LLC	Oct 2026
Name hidden	New Baden	LLC	Oct 2026
Name hidden	New Baden	LLC	Oct 2026
Name hidden	New Baden	LLC	Oct 2026
Name hidden	New Baden	LLC	Oct 2026
Name hidden	New Baden	LLC	Oct 2026
Name hidden	New Baden	Nonprofit	Oct 2026
Name hidden	New Baden	Corporation	Oct 2026
Name hidden	Carlyle	LLC	Sep 2026
Name hidden	Hoffman	LLC	Sep 2026
Name hidden	New Baden	LLC	Sep 2026
Name hidden	Aviston	LLC	Sep 2026
Name hidden	Aviston	LLC	Sep 2026
Name hidden	Germantown	LLC	Sep 2026
Name hidden	Trenton	LLC	Sep 2026
Name hidden	Trenton	LLC	Sep 2026
Name hidden	Trenton	LLC	Sep 2026
Name hidden	Breese	LLC	Sep 2026

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Common questions about Clinton County businesses

How many businesses are registered in Clinton County, Illinois?

ListRiver has 1,843 active registered businesses in Clinton 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 Clinton County, Illinois in September 2026?

17 businesses on record in Clinton County, Illinois were formed in September 2026.

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

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

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

LLCs are the most common: 1,283 of 1,843 businesses on record (70%), followed by Corporations with 396 (21%).

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 Clinton County, Illinois?

Use ListRiver's list builder to filter Clinton 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/clinton-county" title="New businesses in Clinton 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/clinton-county">Businesses in Clinton 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.