Businesses in Port Barrington, Illinois

As of October 20, 2026, ListRiver's records show 98 active registered businesses in Port Barrington, Illinois. 49% are LLCs.

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

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Businesses on record

Formed in the last 12 months

Formed in September

With a phone number

8 records

New Port Barrington businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports

Entity types

LLCs48 · 49%
Corporations46 · 47%
Nonprofits4 · 4%

Newest business names registered in Port Barrington

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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	Port Barrington	LLC	Oct 2026
Name hidden	Port Barrington	LLC	Oct 2026
Name hidden	Port Barrington	LLC	Oct 2026
Name hidden	Port Barrington	LLC	Aug 2026
Name hidden	Port Barrington	LLC	Aug 2026
Name hidden	Port Barrington	Corporation	Jul 2026
Name hidden	Port Barrington	LLC	Jun 2026
Name hidden	Port Barrington	LLC	Jun 2026
Name hidden	Port Barrington	LLC	May 2026
Name hidden	Port Barrington	LLC	Apr 2026
Name hidden	Port Barrington	LLC	Mar 2026
Name hidden	Port Barrington	LLC	Feb 2026
Name hidden	Port Barrington	Corporation	Feb 2026
Name hidden	Port Barrington	Corporation	Jan 2026
Name hidden	Port Barrington	LLC	Dec 2025
Name hidden	Port Barrington	LLC	Dec 2025
Name hidden	Port Barrington	LLC	Nov 2025
Name hidden	Port Barrington	Corporation	Oct 2025
Name hidden	Port Barrington	Corporation	Sep 2025
Name hidden	Port Barrington	Corporation	Sep 2025
Name hidden	Port Barrington	LLC	Aug 2025
Name hidden	Port Barrington	LLC	Jul 2025
Name hidden	Port Barrington	LLC	Jun 2025
Name hidden	Port Barrington	Corporation	Jun 2025
Name hidden	Port Barrington	LLC	May 2025

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Common questions about Port Barrington businesses

How many businesses are registered in Port Barrington, Illinois?

ListRiver has 98 active registered businesses in Port Barrington, 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 Port Barrington, Illinois in September 2026?

0 businesses on record in Port Barrington, Illinois were formed in September 2026.

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

15 businesses on record in Port Barrington, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 48 of 98 businesses on record (49%), followed by Corporations with 46 (47%).

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 Port Barrington, Illinois?

Use ListRiver's list builder to filter Port Barrington, 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/port-barrington" title="New businesses in Port Barrington, 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/port-barrington">Businesses in Port Barrington, 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.