Businesses in Piatt County, Illinois

As of October 20, 2026, ListRiver's records show 935 active registered businesses in Piatt County, Illinois. 65% are LLCs. 10 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

935

Formed in the last 12 months

114

Formed in September

With a phone number

14%

128 records

New Piatt County businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 10 new businesses formed in September 2026

Entity types

LLCs610 · 65%
Corporations195 · 21%
Nonprofits127 · 14%
Other3 · 0%

Top cities

Monticello526 · 56%
White Heath90 · 10%
Bement75 · 8%
Mansfield75 · 8%
Cerro Gordo55 · 6%
De Land46 · 5%
Hammond32 · 3%
Cisco23 · 2%
La Place5 · 1%
Milmine3 · 0%
Champaign2 · 0%
Lovington1 · 0%
Mahomet1 · 0%
White Hall1 · 0%

Top ZIP codes

ZIP 61856529 · 57%
ZIP 6188491 · 10%
ZIP 6185476 · 8%
ZIP 6181375 · 8%
ZIP 6181855 · 6%
ZIP 6183945 · 5%
ZIP 6192932 · 3%
ZIP 6183023 · 2%
ZIP 619366 · 1%
ZIP 618553 · 0%

Newest business names registered in Piatt County

Get all 935 Piatt County businesses · see price Just the 27 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	White Heath	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Mansfield	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Cerro Gordo	LLC	Oct 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Mansfield	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	White Heath	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Cisco	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	De Land	LLC	Sep 2026
Name hidden	Monticello	Corporation	Sep 2026
Name hidden	Monticello	LLC	Aug 2026
Name hidden	Monticello	LLC	Aug 2026
Name hidden	Monticello	LLC	Aug 2026
Name hidden	Mansfield	LLC	Aug 2026
Name hidden	Mansfield	LLC	Aug 2026
Name hidden	Hammond	LLC	Aug 2026
Name hidden	White Heath	LLC	Aug 2026

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Common questions about Piatt County businesses

How many businesses are registered in Piatt County, Illinois?

ListRiver has 935 active registered businesses in Piatt 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 Piatt County, Illinois in September 2026?

10 businesses on record in Piatt County, Illinois were formed in September 2026.

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

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

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

LLCs are the most common: 610 of 935 businesses on record (65%), followed by Corporations with 195 (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 Piatt County, Illinois?

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