Businesses in Brentwood, New York

As of October 15, 2026, ListRiver's records show 6,743 active registered businesses in Brentwood, New York. 64% are Corporations. 42 were formed in September 2026.

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

Businesses on record
6,743
Formed in the last 12 months
470
Formed in September
42
With a registered agent
20%
1,321 records

New Brentwood businesses per month

03060Oct 2024: 36Oct 24Nov 2024: 28Dec 2024: 29Jan 2025: 442025Feb 2025: 54Mar 2025: 58Apr 2025: 47May 2025: 38Jun 2025: 32Jul 2025: 33Aug 2025: 42Sep 2025: 31Oct 2025: 35Nov 2025: 30Dec 2025: 29Jan 2026: 482026Feb 2026: 28Mar 2026: 33Apr 2026: 40May 2026: 47Jun 2026: 47Jul 2026: 41Aug 2026: 50Sep 2026: 42

Businesses on record by formation month, through September 2026. Monthly New York new-business reports · Get the list of 42 new businesses formed in September 2026

Entity types

  • Corporations4,304 · 64%
  • LLCs2,311 · 34%
  • Other100 · 1%
  • Limited partnerships26 · 0%
  • LLPs2 · 0%

Top ZIP codes

Newest business names registered in Brentwood

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BusinessCityTypeFormed
Name hiddenBrentwoodCorporationOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodCorporationOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodCorporationOct 2026
Name hiddenBrentwoodLLCOct 2026
Name hiddenBrentwoodCorporationSep 2026
Name hiddenBrentwoodCorporationSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodCorporationSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodLLCSep 2026
Name hiddenBrentwoodCorporationSep 2026
Name hiddenBrentwoodLLCSep 2026

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Common questions about Brentwood businesses

How many businesses are registered in Brentwood, New York?

ListRiver has 6,743 active registered businesses in Brentwood, 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 Brentwood, New York in September 2026?

42 businesses on record in Brentwood, New York were formed in September 2026.

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

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

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

Corporations are the most common: 4,304 of 6,743 businesses on record (64%), followed by LLCs with 2,311 (34%).

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 Brentwood, New York?

Use ListRiver's list builder to filter Brentwood, 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.