Businesses in Southampton, New York

As of October 15, 2026, ListRiver's records show 6,009 active registered businesses in Southampton, New York. 60% are LLCs. 24 were formed in September 2026.

From official New York registry records, updated weekly. Most Southampton businesses are in Suffolk County. Look up a New York business by name.

Businesses on record
6,009
Formed in the last 12 months
311
Formed in September
24
With a registered agent
13%
752 records

New Southampton businesses per month

02550Oct 2024: 15Oct 24Nov 2024: 19Dec 2024: 18Jan 2025: 292025Feb 2025: 26Mar 2025: 32Apr 2025: 24May 2025: 28Jun 2025: 22Jul 2025: 27Aug 2025: 17Sep 2025: 26Oct 2025: 16Nov 2025: 24Dec 2025: 41Jan 2026: 172026Feb 2026: 27Mar 2026: 28Apr 2026: 33May 2026: 29Jun 2026: 19Jul 2026: 29Aug 2026: 24Sep 2026: 24

Businesses on record by formation month, through September 2026. Monthly New York new-business reports · Get the list of 24 new businesses formed in September 2026

Entity types

  • LLCs3,609 · 60%
  • Corporations2,190 · 36%
  • Other162 · 3%
  • Limited partnerships38 · 1%
  • LLPs8 · 0%
  • Nonprofits2 · 0%

Top ZIP codes

Newest business names registered in Southampton

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BusinessCityTypeFormed
Name hiddenSouthamptonLLCOct 2026
Name hiddenSouthamptonLLCOct 2026
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Name hiddenSouthamptonLLCOct 2026
Name hiddenSouthamptonCorporationOct 2026
Name hiddenSouthamptonLLCOct 2026
Name hiddenSouthamptonCorporationSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonCorporationSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonCorporationSep 2026
Name hiddenSouthamptonCorporationSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonCorporationSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026
Name hiddenSouthamptonLLCSep 2026

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Common questions about Southampton businesses

How many businesses are registered in Southampton, New York?

ListRiver has 6,009 active registered businesses in Southampton, New York on record as of October 15, 2026, from official New York business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Southampton, New York in September 2026?

24 businesses on record in Southampton, New York were formed in September 2026.

How many new businesses opened in Southampton, New York in the last 12 months?

311 businesses on record in Southampton, New York were formed in the 12 months through September 2026.

What is the most common type of business in Southampton, New York?

LLCs are the most common: 3,609 of 6,009 businesses on record (60%), followed by Corporations with 2,190 (36%).

Where does this data come from?

From New York'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 Southampton, New York?

Use ListRiver's list builder to filter Southampton, New York 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 New York 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.