Businesses in Madison, Connecticut

As of October 15, 2026, ListRiver's records show 2,389 active registered businesses in Madison, Connecticut, the 49th most among Connecticut cities. 84% are LLCs. 21 were formed in September 2026. That is 1% of all Connecticut businesses on record.

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

Businesses on record
2,389
Formed in the last 12 months
247
Formed in September
21
With a phone number
8%
201 records

New Madison businesses per month

01530Oct 2024: 10Oct 24Nov 2024: 18Dec 2024: 12Jan 2025: 272025Feb 2025: 15Mar 2025: 22Apr 2025: 23May 2025: 18Jun 2025: 18Jul 2025: 15Aug 2025: 14Sep 2025: 14Oct 2025: 22Nov 2025: 17Dec 2025: 22Jan 2026: 282026Feb 2026: 22Mar 2026: 24Apr 2026: 21May 2026: 17Jun 2026: 15Jul 2026: 19Aug 2026: 19Sep 2026: 21

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 21 new businesses formed in September 2026

Entity types

  • LLCs2,008 · 84%
  • Corporations207 · 9%
  • Nonprofits159 · 7%
  • Limited partnerships8 · 0%
  • LLPs4 · 0%
  • Other3 · 0%

Top ZIP codes

Industries (where known)

  • Real Estate546 · 24%
  • Professional & Technical Services414 · 18%
  • Other Services215 · 9%
  • Construction173 · 8%
  • Health Care & Social Assistance168 · 7%
  • Retail Trade141 · 6%
  • Arts, Entertainment & Recreation100 · 4%
  • Finance & Insurance90 · 4%
  • Educational Services71 · 3%
  • Accommodation & Food Services65 · 3%

Newest business names registered in Madison

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Common questions about Madison businesses

How many businesses are registered in Madison, Connecticut?

ListRiver has 2,389 active registered businesses in Madison, 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 Madison, Connecticut in September 2026?

21 businesses on record in Madison, Connecticut were formed in September 2026.

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

247 businesses on record in Madison, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 2,008 of 2,389 businesses on record (84%), followed by Corporations with 207 (9%).

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 Madison, Connecticut?

Use ListRiver's list builder to filter Madison, 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.