Businesses in Plymouth, Illinois

As of October 20, 2026, ListRiver's records show 32 active registered businesses in Plymouth, Illinois. 75% are LLCs. 1 were formed in September 2026.

From official Illinois registry records, updated weekly. Most Plymouth businesses are in Hancock 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

13%

4 records

New Plymouth businesses per month

Businesses on record by formation month, through September 2026. Monthly Illinois new-business reports · Get the list of 1 new businesses formed in September 2026

Entity types

LLCs24 · 75%
Nonprofits4 · 13%
Corporations4 · 13%

Newest business names registered in Plymouth

Get all 32 Plymouth businesses · see price Just the 1 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	Plymouth	LLC	Sep 2026
Name hidden	Plymouth	LLC	Jul 2026
Name hidden	Plymouth	LLC	Apr 2025
Name hidden	Plymouth	LLC	Apr 2025
Name hidden	Plymouth	LLC	Mar 2025
Name hidden	Plymouth	LLC	Feb 2025
Name hidden	Plymouth	LLC	Dec 2024
Name hidden	Plymouth	LLC	Sep 2024
Name hidden	Plymouth	LLC	Jan 2024
Name hidden	Plymouth	LLC	Sep 2023
Name hidden	Plymouth	LLC	Sep 2023
Name hidden	Plymouth	LLC	Jul 2022
Name hidden	Plymouth	LLC	Mar 2022
Name hidden	Plymouth	LLC	Jan 2022
Name hidden	Plymouth	LLC	Nov 2021
Name hidden	Plymouth	LLC	Apr 2021
Name hidden	Plymouth	LLC	Apr 2021
Name hidden	Plymouth	LLC	Feb 2021
Name hidden	Plymouth	LLC	Dec 2018
Name hidden	Plymouth	Nonprofit	Aug 2016
Name hidden	Plymouth	LLC	Oct 2015
Name hidden	Plymouth	LLC	Oct 2014
Name hidden	Plymouth	LLC	Sep 2014
Name hidden	Plymouth	Corporation	Sep 2014
Name hidden	Plymouth	Corporation	Jun 2014

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Common questions about Plymouth businesses

How many businesses are registered in Plymouth, Illinois?

ListRiver has 32 active registered businesses in Plymouth, 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 Plymouth, Illinois in September 2026?

1 businesses on record in Plymouth, Illinois were formed in September 2026.

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

2 businesses on record in Plymouth, Illinois were formed in the 12 months through September 2026.

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

LLCs are the most common: 24 of 32 businesses on record (75%), followed by Nonprofits with 4 (13%).

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 Plymouth, Illinois?

Use ListRiver's list builder to filter Plymouth, 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/plymouth" title="New businesses in Plymouth, 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/plymouth">Businesses in Plymouth, 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.