Businesses in Round Lake Park, Illinois

As of October 20, 2026, ListRiver's records show 180 active registered businesses in Round Lake Park, Illinois. 50% are LLCs. 5 were formed in September 2026.

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

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Businesses on record

180

Formed in the last 12 months

Formed in September

With a phone number

10%

18 records

New Round Lake Park businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 5 new businesses formed in September 2026

Entity types

LLCs90 · 50%
Corporations81 · 45%
Nonprofits9 · 5%

Newest business names registered in Round Lake Park

Get all 180 Round Lake Park businesses · see price Just the 13 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	Round Lake Park	LLC	Oct 2026
Name hidden	Round Lake Park	LLC	Oct 2026
Name hidden	Round Lake Park	LLC	Oct 2026
Name hidden	Round Lake Park	LLC	Oct 2026
Name hidden	Round Lake Park	LLC	Oct 2026
Name hidden	Round Lake Park	Corporation	Oct 2026
Name hidden	Round Lake Park	Corporation	Oct 2026
Name hidden	Round Lake Park	LLC	Sep 2026
Name hidden	Round Lake Park	LLC	Sep 2026
Name hidden	Round Lake Park	LLC	Sep 2026
Name hidden	Round Lake Park	Corporation	Sep 2026
Name hidden	Round Lake Park	Corporation	Sep 2026
Name hidden	Round Lake Park	LLC	Aug 2026
Name hidden	Round Lake Park	LLC	Jul 2026
Name hidden	Round Lake Park	LLC	Jul 2026
Name hidden	Round Lake Park	Nonprofit	Jul 2026
Name hidden	Round Lake Park	Corporation	Jul 2026
Name hidden	Round Lake Park	LLC	Jun 2026
Name hidden	Round Lake Park	LLC	Jun 2026
Name hidden	Round Lake Park	LLC	Jun 2026
Name hidden	Round Lake Park	LLC	Jun 2026
Name hidden	Round Lake Park	LLC	Jun 2026
Name hidden	Round Lake Park	LLC	May 2026
Name hidden	Round Lake Park	LLC	May 2026
Name hidden	Round Lake Park	Corporation	May 2026

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Common questions about Round Lake Park businesses

How many businesses are registered in Round Lake Park, Illinois?

ListRiver has 180 active registered businesses in Round Lake 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 Round Lake Park, Illinois in September 2026?

5 businesses on record in Round Lake Park, Illinois were formed in September 2026.

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

38 businesses on record in Round Lake Park, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 90 of 180 businesses on record (50%), followed by Corporations with 81 (45%).

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 Round Lake Park, Illinois?

Use ListRiver's list builder to filter Round Lake 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.

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/illinois/round-lake-park" title="New businesses in Round Lake 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/round-lake-park">Businesses in Round Lake 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.