Businesses in Plymouth, Connecticut

As of October 11, 2026, ListRiver's records show 198 active registered businesses in Plymouth, Connecticut. 88% are LLCs. 3 were formed in September 2026.

From official Connecticut registry records, updated weekly. Most Plymouth businesses are in Naugatuck Valley Planning Region. Look up a Connecticut business by name.

Businesses on record

198

Formed in the last 12 months

Formed in September

With a phone number

16 records

New Plymouth businesses per month

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 3 new businesses formed in September 2026

Entity types

LLCs175 · 88%
Corporations14 · 7%
Nonprofits9 · 5%

Top ZIP codes

ZIP 06782184 · 93%
ZIP 0678614 · 7%

Industries (where known)

Construction37 · 19%
Real Estate36 · 18%
Other Services16 · 8%
Retail Trade16 · 8%
Professional & Technical Services15 · 8%
Administrative & Support Services15 · 8%
Health Care & Social Assistance10 · 5%
Manufacturing10 · 5%
Agriculture, Forestry, Fishing9 · 5%
Accommodation & Food Services8 · 4%

Newest business names registered in Plymouth

Get all 198 Plymouth businesses · see price Just the 10 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	Oct 2026
Name hidden	Plymouth	LLC	Oct 2026
Name hidden	Plymouth	LLC	Sep 2026
Name hidden	Plymouth	LLC	Sep 2026
Name hidden	Plymouth	LLC	Sep 2026
Name hidden	Plymouth	LLC	Aug 2026
Name hidden	Plymouth	LLC	Aug 2026
Name hidden	Plymouth	LLC	Aug 2026
Name hidden	Plymouth	LLC	Aug 2026
Name hidden	Plymouth	LLC	Aug 2026
Name hidden	Plymouth	LLC	Jul 2026
Name hidden	Plymouth	LLC	Jun 2026
Name hidden	Plymouth	LLC	Jun 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	May 2026
Name hidden	Plymouth	LLC	Apr 2026
Name hidden	Plymouth	LLC	Mar 2026
Name hidden	Plymouth	LLC	Mar 2026
Name hidden	Plymouth	LLC	Mar 2026
Name hidden	Plymouth	LLC	Feb 2026

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Common questions about Plymouth businesses

How many businesses are registered in Plymouth, Connecticut?

ListRiver has 198 active registered businesses in Plymouth, Connecticut on record as of October 11, 2026, from official Connecticut business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Plymouth, Connecticut in September 2026?

3 businesses on record in Plymouth, Connecticut were formed in September 2026.

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

32 businesses on record in Plymouth, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 175 of 198 businesses on record (88%), followed by Corporations with 14 (7%).

Where does this data come from?

From Connecticut'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, Connecticut?

Use ListRiver's list builder to filter Plymouth, Connecticut 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 Connecticut business lists

Western Connecticut Planning Region Capitol Planning Region South Central Connecticut Planning Region Naugatuck Valley Planning Region Greater Bridgeport Planning Region Southeastern Connecticut Planning Region Lower Connecticut River Valley Planning Region Northwest Hills Planning Region Northeastern Connecticut Planning Region Stamford Bridgeport Greenwich Hartford Norwalk New Haven Danbury Glastonbury Waterbury Fairfield West Hartford Westport Milford Hamden Shelton Stratford New Britain Meriden Wallingford Manchester Thompson Washington Depot Amston Kensington North Franklin Andover Salisbury Cornwall Bridge Storrs Barkhamsted Quaker Hill Ivoryton North Grosvenordale Bozrah Bantam East Berlin Norfolk Milldale Washington Windham Baltic Sterling Centerbrook North Granby North Windham Voluntown New Preston Marble Dale West Cornwall Falls Village Chaplin Hampton New Preston Eastford Colebrook Taftville West Granby Rockfall Northfield East Hartland Tariffville

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/connecticut/plymouth" title="New businesses in Plymouth, Connecticut 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/connecticut/plymouth">Businesses in Plymouth, Connecticut</a>, ListRiver</p></div>

About this data

Counts come from official Connecticut business registry records on file with ListRiver, current as of October 11, 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.