Businesses in Summit, Illinois

As of October 20, 2026, ListRiver's records show 376 active registered businesses in Summit, Illinois. 74% are LLCs. 6 were formed in September 2026.

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

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Businesses on record

376

Formed in the last 12 months

Formed in September

With a phone number

34 records

New Summit 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

LLCs278 · 74%
Corporations86 · 23%
Nonprofits10 · 3%
Other2 · 1%

Top ZIP codes

ZIP 60501372 · 99%
ZIP 606341 · 0%
ZIP 601551 · 0%
ZIP 600511 · 0%
ZIP 604911 · 0%

Newest business names registered in Summit

Get all 376 Summit businesses · see price Just the 15 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	Summit	LLC	Oct 2026
Name hidden	Summit	LLC	Oct 2026
Name hidden	Summit	LLC	Oct 2026
Name hidden	Summit	LLC	Oct 2026
Name hidden	Summit	Corporation	Oct 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Sep 2026
Name hidden	Summit	LLC	Aug 2026
Name hidden	Summit	LLC	Aug 2026
Name hidden	Summit	LLC	Aug 2026
Name hidden	Summit	LLC	Aug 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jul 2026
Name hidden	Summit	LLC	Jun 2026
Name hidden	Summit	LLC	Jun 2026
Name hidden	Summit	LLC	Jun 2026
Name hidden	Summit	LLC	May 2026

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Common questions about Summit businesses

How many businesses are registered in Summit, Illinois?

ListRiver has 376 active registered businesses in Summit, 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 Summit, Illinois in September 2026?

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

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

72 businesses on record in Summit, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 278 of 376 businesses on record (74%), followed by Corporations with 86 (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 Summit, Illinois?

Use ListRiver's list builder to filter Summit, 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 Benton Fairfield Island Lake Milan Wood River Bethalto Metamora Oregon Steger Wayne Clinton Poplar Grove West Frankfort Red Bud Maple Park Anna Peotone Calumet Park Shelbyville Sauk Village Metropolis Byron University Park Pittsfield Eureka Medinah Breese Carlyle Peoria Heights Orland Hills Mendota Rochester North Riverside Morrison Marshall Tuscola Sherman Genoa Freeburg Newton

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