Businesses in Monticello, Illinois

As of October 20, 2026, ListRiver's records show 529 active registered businesses in Monticello, Illinois. 62% are LLCs. 6 were formed in September 2026.

From official Illinois registry records, updated weekly. Most Monticello businesses are in Piatt County. Look up a Illinois business by name.

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Businesses on record

529

Formed in the last 12 months

Formed in September

With a phone number

16%

86 records

New Monticello businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 6 new businesses formed in September 2026

Entity types

LLCs326 · 62%
Corporations124 · 23%
Nonprofits76 · 14%
Other3 · 1%

Top ZIP codes

ZIP 61856525 · 99%
ZIP 628561 · 0%
ZIP 618541 · 0%
ZIP 613561 · 0%
ZIP 618221 · 0%

Newest business names registered in Monticello

Get all 529 Monticello businesses · see price Just the 14 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	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Oct 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Monticello	LLC	Sep 2026
Name hidden	Monticello	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	Monticello	LLC	Jul 2026
Name hidden	Monticello	LLC	Jul 2026
Name hidden	Monticello	LLC	Jul 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	Jun 2026
Name hidden	Monticello	LLC	May 2026

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Common questions about Monticello businesses

How many businesses are registered in Monticello, Illinois?

ListRiver has 529 active registered businesses in Monticello, 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 Monticello, Illinois in September 2026?

6 businesses on record in Monticello, Illinois were formed in September 2026.

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

61 businesses on record in Monticello, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 326 of 529 businesses on record (62%), followed by Corporations with 124 (23%).

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 Monticello, Illinois?

Use ListRiver's list builder to filter Monticello, 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/monticello" title="New businesses in Monticello, 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/monticello">Businesses in Monticello, 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.