Businesses in Waterbury, Connecticut

As of October 14, 2026, ListRiver's records show 9,666 active registered businesses in Waterbury, Connecticut, the 9th most among Connecticut cities. 88% are LLCs. 126 were formed in September 2026. That is 2% of all Connecticut businesses on record.

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

Businesses on record
9,666
Formed in the last 12 months
1,597
Formed in September
126
With a phone number
9%
873 records

New Waterbury businesses per month

0100200Oct 2024: 110Oct 24Nov 2024: 102Dec 2024: 96Jan 2025: 1092025Feb 2025: 121Mar 2025: 158Apr 2025: 145May 2025: 153Jun 2025: 122Jul 2025: 153Aug 2025: 127Sep 2025: 133Oct 2025: 129Nov 2025: 100Dec 2025: 120Jan 2026: 1222026Feb 2026: 130Mar 2026: 170Apr 2026: 151May 2026: 155Jun 2026: 136Jul 2026: 134Aug 2026: 124Sep 2026: 126

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 126 new businesses formed in September 2026

Entity types

  • LLCs8,467 · 88%
  • Corporations656 · 7%
  • Nonprofits492 · 5%
  • Limited partnerships20 · 0%
  • LLPs19 · 0%
  • Other12 · 0%

Top ZIP codes

Industries (where known)

  • Real Estate1,804 · 19%
  • Construction1,682 · 18%
  • Other Services1,030 · 11%
  • Retail Trade914 · 10%
  • Health Care & Social Assistance618 · 7%
  • Administrative & Support Services595 · 6%
  • Transportation & Warehousing580 · 6%
  • Professional & Technical Services550 · 6%
  • Accommodation & Food Services448 · 5%
  • Manufacturing264 · 3%

Newest business names registered in Waterbury

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Common questions about Waterbury businesses

How many businesses are registered in Waterbury, Connecticut?

ListRiver has 9,666 active registered businesses in Waterbury, Connecticut on record as of October 14, 2026, from official Connecticut business registry data. Dissolved and defunct businesses are not counted.

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

126 businesses on record in Waterbury, Connecticut were formed in September 2026.

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

1,597 businesses on record in Waterbury, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 8,467 of 9,666 businesses on record (88%), followed by Corporations with 656 (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 Waterbury, Connecticut?

Use ListRiver's list builder to filter Waterbury, 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 14, 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.