Businesses in Old Lyme, Connecticut

As of October 11, 2026, ListRiver's records show 1,428 active registered businesses in Old Lyme, Connecticut. 82% are LLCs. 4 were formed in September 2026.

From official Connecticut registry records, updated weekly. Most Old Lyme businesses are in Lower Connecticut River Valley Planning Region. Look up a Connecticut business by name.

Businesses on record
1,428
Formed in the last 12 months
131
Formed in September
4
With a phone number
9%
131 records

New Old Lyme businesses per month

01020Oct 2024: 11Oct 24Nov 2024: 6Dec 2024: 11Jan 2025: 112025Feb 2025: 14Mar 2025: 9Apr 2025: 5May 2025: 10Jun 2025: 15Jul 2025: 12Aug 2025: 12Sep 2025: 10Oct 2025: 13Nov 2025: 5Dec 2025: 6Jan 2026: 132026Feb 2026: 7Mar 2026: 20Apr 2026: 14May 2026: 14Jun 2026: 9Jul 2026: 15Aug 2026: 11Sep 2026: 4

Businesses on record by formation month, through September 2026. Monthly Connecticut new-business reports · Get the list of 4 new businesses formed in September 2026

Entity types

  • LLCs1,165 · 82%
  • Nonprofits125 · 9%
  • Corporations125 · 9%
  • Limited partnerships6 · 0%
  • Other4 · 0%
  • LLPs3 · 0%

Top ZIP codes

Industries (where known)

  • Real Estate378 · 28%
  • Professional & Technical Services200 · 15%
  • Other Services141 · 10%
  • Construction127 · 9%
  • Health Care & Social Assistance61 · 5%
  • Arts, Entertainment & Recreation58 · 4%
  • Retail Trade55 · 4%
  • Administrative & Support Services51 · 4%
  • Educational Services45 · 3%
  • Agriculture, Forestry, Fishing41 · 3%

Newest business names registered in Old Lyme

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BusinessCityTypeFormed
Name hiddenOld LymeCorporationOct 2026
Name hiddenOld LymeLLCOct 2026
Name hiddenOld LymeLLCOct 2026
Name hiddenOld LymeLLCSep 2026
Name hiddenOld LymeLLCSep 2026
Name hiddenOld LymeLLCSep 2026
Name hiddenOld LymeLLCSep 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeLLCAug 2026
Name hiddenOld LymeNonprofitJul 2026
Name hiddenOld LymeLLCJul 2026
Name hiddenOld LymeLLCJul 2026
Name hiddenOld LymeLLCJul 2026
Name hiddenOld LymeLLCJul 2026
Name hiddenOld LymeLLCJul 2026
Name hiddenOld LymeLLCJul 2026

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Common questions about Old Lyme businesses

How many businesses are registered in Old Lyme, Connecticut?

ListRiver has 1,428 active registered businesses in Old Lyme, 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 Old Lyme, Connecticut in September 2026?

4 businesses on record in Old Lyme, Connecticut were formed in September 2026.

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

131 businesses on record in Old Lyme, Connecticut were formed in the 12 months through September 2026.

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

LLCs are the most common: 1,165 of 1,428 businesses on record (82%), followed by Nonprofits with 125 (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 Old Lyme, Connecticut?

Use ListRiver's list builder to filter Old Lyme, 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.