Businesses in Dupo, Illinois

As of October 20, 2026, ListRiver's records show 135 active registered businesses in Dupo, Illinois. 65% are LLCs. 4 were formed in September 2026.

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

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Businesses on record

135

Formed in the last 12 months

Formed in September

With a phone number

16%

22 records

New Dupo businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 4 new businesses formed in September 2026

Entity types

LLCs88 · 65%
Corporations32 · 24%
Nonprofits15 · 11%

Top ZIP codes

ZIP 62239134 · 99%
ZIP 622401 · 1%

Newest business names registered in Dupo

Get all 135 Dupo businesses · see price Just the 8 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	Dupo	LLC	Oct 2026
Name hidden	Dupo	LLC	Oct 2026
Name hidden	Dupo	LLC	Sep 2026
Name hidden	Dupo	LLC	Sep 2026
Name hidden	Dupo	LLC	Sep 2026
Name hidden	Dupo	Nonprofit	Sep 2026
Name hidden	Dupo	LLC	Aug 2026
Name hidden	Dupo	LLC	Aug 2026
Name hidden	Dupo	LLC	Jul 2026
Name hidden	Dupo	LLC	Jul 2026
Name hidden	Dupo	LLC	Jun 2026
Name hidden	Dupo	LLC	Jun 2026
Name hidden	Dupo	LLC	May 2026
Name hidden	Dupo	LLC	May 2026
Name hidden	Dupo	LLC	May 2026
Name hidden	Dupo	LLC	May 2026
Name hidden	Dupo	LLC	May 2026
Name hidden	Dupo	LLC	Apr 2026
Name hidden	Dupo	LLC	Mar 2026
Name hidden	Dupo	LLC	Feb 2026
Name hidden	Dupo	LLC	Feb 2026
Name hidden	Dupo	LLC	Feb 2026
Name hidden	Dupo	LLC	Jan 2026
Name hidden	Dupo	LLC	Dec 2025
Name hidden	Dupo	LLC	Dec 2025

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Common questions about Dupo businesses

How many businesses are registered in Dupo, Illinois?

ListRiver has 135 active registered businesses in Dupo, 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 Dupo, Illinois in September 2026?

4 businesses on record in Dupo, Illinois were formed in September 2026.

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

25 businesses on record in Dupo, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 88 of 135 businesses on record (65%), followed by Corporations with 32 (24%).

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 Dupo, Illinois?

Use ListRiver's list builder to filter Dupo, 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.

More Illinois business lists

Cook County Dupage County Lake County Will County Kane County Sangamon County Mchenry County Winnebago County Madison County St. Clair County Champaign County Peoria County Mclean County Kendall County Rock Island County Tazewell County Dekalb County Kankakee County Lasalle County Macon County Adams County Williamson County Grundy County Vermilion County Effingham County Jackson County Boone County Monroe County Whiteside County Ogle County Macoupin County Coles County Stephenson County Henry County Clinton County Woodford County Lee County Marion County Knox County Jefferson County Jo Daviess County Livingston County Bureau County Morgan County Fayette County Randolph County Douglas County Franklin County Christian County Montgomery County Iroquois County Fulton County Logan County Saline County Mcdonough County Piatt County Shelby County Jersey County White County Richland County Hancock County Bond County Union County Pike County Crawford County Washington County Edgar County Clark County Carroll County Wayne County Warren County Moultrie County De Witt County Ford County Perry County Clay County Mercer County Greene County Menard County Wabash County Chicago Springfield Naperville Schaumburg Northbrook Aurora Des Plaines Skokie Rockford Arlington Heights Elgin Orland Park Plainfield Evanston Glenview Joliet Peoria Palatine Downers Grove Park Ridge Athens Worden Hebron Hodgkins Seneca Germantown Hills Virden Elizabeth Savanna Oblong Steeleville Davis Farmer City Roanoke Norris City Johnston City New Athens Prophetstown Hennepin Girard Jonesboro Chenoa Hamilton Earlville Cobden Thornton Durand Burnham Grafton Gridley Creal Springs Utica Germantown Toledo Davis Junction Neoga Erie Goodfield Minonk Walnut

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/illinois/dupo" title="New businesses in Dupo, 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/dupo">Businesses in Dupo, 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.