Businesses in Watertown, Connecticut

As of October 11, 2026, ListRiver's records show 1,815 active registered businesses in Watertown, Connecticut. 84% are LLCs. 15 were formed in September 2026.

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

Businesses on record
1,815
Formed in the last 12 months
208
Formed in September
15
With a phone number
12%
224 records

New Watertown businesses per month

01225Oct 2024: 16Oct 24Nov 2024: 11Dec 2024: 15Jan 2025: 232025Feb 2025: 17Mar 2025: 23Apr 2025: 22May 2025: 16Jun 2025: 12Jul 2025: 17Aug 2025: 15Sep 2025: 19Oct 2025: 22Nov 2025: 12Dec 2025: 22Jan 2026: 232026Feb 2026: 16Mar 2026: 22Apr 2026: 15May 2026: 15Jun 2026: 19Jul 2026: 15Aug 2026: 12Sep 2026: 15

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 15 new businesses formed in September 2026

Entity types

  • LLCs1,532 · 84%
  • Corporations148 · 8%
  • Nonprofits128 · 7%
  • Other4 · 0%
  • LLPs2 · 0%
  • Limited partnerships1 · 0%

Top ZIP codes

Industries (where known)

  • Real Estate428 · 24%
  • Construction260 · 15%
  • Other Services218 · 12%
  • Professional & Technical Services154 · 9%
  • Retail Trade118 · 7%
  • Health Care & Social Assistance111 · 6%
  • Administrative & Support Services77 · 4%
  • Manufacturing74 · 4%
  • Accommodation & Food Services70 · 4%
  • Arts, Entertainment & Recreation59 · 3%

Newest business names registered in Watertown

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BusinessCityTypeFormed
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Name hiddenWatertownCorporationSep 2026
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Name hiddenWatertownLLCAug 2026
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Common questions about Watertown businesses

How many businesses are registered in Watertown, Connecticut?

ListRiver has 1,815 active registered businesses in Watertown, 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 Watertown, Connecticut in September 2026?

15 businesses on record in Watertown, Connecticut were formed in September 2026.

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

208 businesses on record in Watertown, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 1,532 of 1,815 businesses on record (84%), followed by Corporations with 148 (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 Watertown, Connecticut?

Use ListRiver's list builder to filter Watertown, 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 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.