Businesses in Thomaston, Connecticut

As of October 11, 2026, ListRiver's records show 756 active registered businesses in Thomaston, Connecticut. 82% are LLCs. 5 were formed in September 2026.

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

Businesses on record

756

Formed in the last 12 months

Formed in September

With a phone number

16%

122 records

New Thomaston businesses per month

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

Entity types

LLCs623 · 82%
Corporations74 · 10%
Nonprofits55 · 7%
LLPs3 · 0%
Other1 · 0%

Top ZIP codes

ZIP 06787748 · 99%
ZIP 067953 · 0%
ZIP 067081 · 0%
ZIP 067701 · 0%
ZIP 067911 · 0%
ZIP 067861 · 0%
ZIP 067781 · 0%

Industries (where known)

Real Estate140 · 19%
Construction116 · 16%
Other Services85 · 12%
Manufacturing63 · 9%
Retail Trade60 · 8%
Professional & Technical Services42 · 6%
Health Care & Social Assistance37 · 5%
Accommodation & Food Services34 · 5%
Administrative & Support Services33 · 4%
Transportation & Warehousing26 · 4%

Newest business names registered in Thomaston

Get all 756 Thomaston businesses · see price Just the 16 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	Thomaston	LLC	Oct 2026
Name hidden	Thomaston	LLC	Oct 2026
Name hidden	Thomaston	LLC	Sep 2026
Name hidden	Thomaston	LLC	Sep 2026
Name hidden	Thomaston	LLC	Sep 2026
Name hidden	Thomaston	LLC	Sep 2026
Name hidden	Thomaston	LLC	Sep 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Aug 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	Corporation	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jul 2026
Name hidden	Thomaston	LLC	Jun 2026

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Common questions about Thomaston businesses

How many businesses are registered in Thomaston, Connecticut?

ListRiver has 756 active registered businesses in Thomaston, 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 Thomaston, Connecticut in September 2026?

5 businesses on record in Thomaston, Connecticut were formed in September 2026.

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

94 businesses on record in Thomaston, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 623 of 756 businesses on record (82%), followed by Corporations with 74 (10%).

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 Thomaston, Connecticut?

Use ListRiver's list builder to filter Thomaston, 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

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/connecticut/thomaston" title="New businesses in Thomaston, 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/thomaston">Businesses in Thomaston, 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.