Businesses in Windsor, Connecticut

As of October 16, 2026, ListRiver's records show 3,150 active registered businesses in Windsor, Connecticut, the 34th most among Connecticut cities. 83% are LLCs. 34 were formed in September 2026. That is 1% of all Connecticut businesses on record.

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

Businesses on record
3,150
Formed in the last 12 months
429
Formed in September
34
With a phone number
8%
243 records

New Windsor businesses per month

02550Oct 2024: 18Oct 24Nov 2024: 30Dec 2024: 37Jan 2025: 322025Feb 2025: 42Mar 2025: 30Apr 2025: 34May 2025: 41Jun 2025: 30Jul 2025: 30Aug 2025: 36Sep 2025: 36Oct 2025: 49Nov 2025: 26Dec 2025: 35Jan 2026: 352026Feb 2026: 32Mar 2026: 28Apr 2026: 36May 2026: 48Jun 2026: 35Jul 2026: 38Aug 2026: 33Sep 2026: 34

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 34 new businesses formed in September 2026

Entity types

  • LLCs2,611 · 83%
  • Corporations312 · 10%
  • Nonprofits200 · 6%
  • Other16 · 1%
  • LLPs7 · 0%
  • Limited partnerships4 · 0%

Top ZIP codes

Industries (where known)

  • Real Estate423 · 14%
  • Professional & Technical Services378 · 13%
  • Other Services315 · 11%
  • Health Care & Social Assistance274 · 9%
  • Transportation & Warehousing253 · 9%
  • Construction206 · 7%
  • Retail Trade202 · 7%
  • Administrative & Support Services141 · 5%
  • Arts, Entertainment & Recreation134 · 5%
  • Manufacturing128 · 4%

Newest business names registered in Windsor

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Common questions about Windsor businesses

How many businesses are registered in Windsor, Connecticut?

ListRiver has 3,150 active registered businesses in Windsor, Connecticut on record as of October 16, 2026, from official Connecticut business registry data. Dissolved and defunct businesses are not counted.

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

34 businesses on record in Windsor, Connecticut were formed in September 2026.

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

429 businesses on record in Windsor, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 2,611 of 3,150 businesses on record (83%), followed by Corporations with 312 (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 Windsor, Connecticut?

Use ListRiver's list builder to filter Windsor, 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 16, 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.