Businesses in Deer Park, Illinois

As of October 20, 2026, ListRiver's records show 512 active registered businesses in Deer Park, Illinois. 70% are LLCs. 9 were formed in September 2026.

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

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Businesses on record

512

Formed in the last 12 months

Formed in September

With a phone number

41 records

New Deer Park businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 9 new businesses formed in September 2026

Entity types

LLCs357 · 70%
Corporations135 · 26%
Nonprofits20 · 4%

Top ZIP codes

ZIP 60010494 · 96%
ZIP 6004711 · 2%
ZIP 601102 · 0%
ZIP 600672 · 0%
ZIP 600742 · 0%
ZIP 600181 · 0%

Newest business names registered in Deer Park

Get all 512 Deer Park businesses · see price Just the 12 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	Deer Park	LLC	Oct 2026
Name hidden	Deer Park	LLC	Oct 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Sep 2026
Name hidden	Deer Park	LLC	Aug 2026
Name hidden	Deer Park	LLC	Jul 2026
Name hidden	Deer Park	LLC	Jul 2026
Name hidden	Deer Park	LLC	Jul 2026
Name hidden	Deer Park	LLC	Jul 2026
Name hidden	Deer Park	LLC	Jun 2026
Name hidden	Deer Park	LLC	Jun 2026
Name hidden	Deer Park	LLC	Jun 2026
Name hidden	Deer Park	LLC	Jun 2026
Name hidden	Deer Park	Corporation	Jun 2026
Name hidden	Deer Park	Corporation	Jun 2026
Name hidden	Deer Park	LLC	May 2026
Name hidden	Deer Park	LLC	May 2026
Name hidden	Deer Park	LLC	May 2026

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Common questions about Deer Park businesses

How many businesses are registered in Deer Park, Illinois?

ListRiver has 512 active registered businesses in Deer Park, 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 Deer Park, Illinois in September 2026?

9 businesses on record in Deer Park, Illinois were formed in September 2026.

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

74 businesses on record in Deer Park, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 357 of 512 businesses on record (70%), followed by Corporations with 135 (26%).

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 Deer Park, Illinois?

Use ListRiver's list builder to filter Deer Park, 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

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