Businesses in Northeastern Connecticut Planning Region, Connecticut

As of October 15, 2026, ListRiver's records show 6,137 active registered businesses in Northeastern Connecticut Planning Region, Connecticut, the 9th most among Connecticut counties. 83% are LLCs. 67 were formed in September 2026. That is 2% of all Connecticut businesses on record.

From official Connecticut registry records, updated weekly. Look up a Connecticut business by name.

Businesses on record
6,137
Formed in the last 12 months
824
Formed in September
67
With a phone number
13%
807 records

New Northeastern Connecticut Planning Region businesses per month

050100Oct 2024: 46Oct 24Nov 2024: 49Dec 2024: 48Jan 2025: 932025Feb 2025: 68Mar 2025: 100Apr 2025: 71May 2025: 68Jun 2025: 49Jul 2025: 63Aug 2025: 52Sep 2025: 48Oct 2025: 56Nov 2025: 56Dec 2025: 51Jan 2026: 822026Feb 2026: 67Mar 2026: 86Apr 2026: 78May 2026: 78Jun 2026: 67Jul 2026: 72Aug 2026: 64Sep 2026: 67

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 67 new businesses formed in September 2026

Entity types

  • LLCs5,120 · 83%
  • Corporations519 · 8%
  • Nonprofits470 · 8%
  • LLPs17 · 0%
  • Limited partnerships7 · 0%
  • Other4 · 0%

Top cities

Top ZIP codes

Industries (where known)

  • Real Estate1,146 · 19%
  • Construction826 · 14%
  • Other Services732 · 12%
  • Retail Trade478 · 8%
  • Professional & Technical Services454 · 8%
  • Agriculture, Forestry, Fishing355 · 6%
  • Manufacturing318 · 5%
  • Administrative & Support Services302 · 5%
  • Accommodation & Food Services287 · 5%
  • Health Care & Social Assistance286 · 5%

Newest business names registered in Northeastern Connecticut Planning Region

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BusinessCityTypeFormed
Name hiddenDayvilleLLCOct 2026
Name hiddenPutnamLLCOct 2026
Name hiddenBrooklynLLCOct 2026
Name hiddenDanielsonLLCOct 2026
Name hiddenPlainfieldLLCOct 2026
Name hiddenMoosupLLCOct 2026
Name hiddenAshfordLLCOct 2026
Name hiddenDanielsonLLCOct 2026
Name hiddenQuinebaugLLCOct 2026
Name hiddenAshfordLLCOct 2026
Name hiddenHamptonLLCOct 2026
Name hiddenDanielsonLLCOct 2026
Name hiddenSterlingLLCOct 2026
Name hiddenDanielsonLLCOct 2026
Name hiddenPutnamLLCOct 2026
Name hiddenPutnamLLCOct 2026
Name hiddenBrooklynLLCOct 2026
Name hiddenPlainfieldLLCSep 2026
Name hiddenChaplinLLCSep 2026
Name hiddenPomfret CenterLLCSep 2026
Name hiddenNorth GrosvenordaleLLCSep 2026
Name hiddenDanielsonLLCSep 2026
Name hiddenWoodstockLLCSep 2026
Name hiddenChaplinLLCSep 2026
Name hiddenWoodstockLLCSep 2026

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Common questions about Northeastern Connecticut Planning Region businesses

How many businesses are registered in Northeastern Connecticut Planning Region, Connecticut?

ListRiver has 6,137 active registered businesses in Northeastern Connecticut Planning Region, Connecticut on record as of October 15, 2026, from official Connecticut business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Northeastern Connecticut Planning Region, Connecticut in September 2026?

67 businesses on record in Northeastern Connecticut Planning Region, Connecticut were formed in September 2026.

How many new businesses opened in Northeastern Connecticut Planning Region, Connecticut in the last 12 months?

824 businesses on record in Northeastern Connecticut Planning Region, Connecticut were formed in the 12 months through September 2026.

What is the most common type of business in Northeastern Connecticut Planning Region, Connecticut?

LLCs are the most common: 5,120 of 6,137 businesses on record (83%), followed by Corporations with 519 (8%).

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 Northeastern Connecticut Planning Region, Connecticut?

Use ListRiver's list builder to filter Northeastern Connecticut Planning Region, 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.

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About this data

Counts come from official Connecticut business registry records on file with ListRiver, current as of October 15, 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.