Every new Connecticut business filing, every day13 Terhune
Michael Rosnick, Principal
This LLC appears to be a real estate holding or development entity for a single residential property at 13 Terhune Drive in Westport, Connecticut. The contact phone and email belong to a real estate agent (Sara Santos at Coldwell Banker), indicating the property is being marketed for sale. The LLC's principal, Michael Rosnick, is listed with a Bridgeport address, likely the owner or developer.
Filed April 14, 2026 · Westport, CT · Fairfield County
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Connecticut Secretary of the State (business.ct.gov) · Entity 3423393 · Retrieved July 27, 2026
About 13 Terhune
13 Terhune, LLC filed in Connecticut on April 14, 2026, as an active real estate company focused on property development and sales. The company is based in Westport and is owned by Michael Rosnick. Its domain was registered on March 19, 2025, 391 days before the filing, through Squarespace Domains. The website is modern and confirmed to match the business name and address, and we estimate it operates from a brick-and-mortar location. The company shares an address and owner name with one other entity. No annual report or EIN on file yet. We estimate revenue between $1M and $10M and 1 to 5 employees.
- Domain registered 391 days before filing, indicating a pre-filing online presence.
- Shares an address and owner name with one other entity.
- Website identity confirmed to match the business name and address.
- No annual report or EIN on file yet.
- We estimate a brick-and-mortar footprint.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 62 new businesses registered in Westport in April 2026, one of 2 real estate businesses.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Officers / Authorized Persons
Frequently Asked Questions
When was 13 Terhune registered?
13 Terhune was registered as LLC on April 14, 2026 in Connecticut.
Where is 13 Terhune located?
13 Terhune is based in Westport, CT, 06880-2706, in Fairfield County.
What type of business is 13 Terhune?
13 Terhune is classified as a real estate business (property development & sales).
Does 13 Terhune have an EIN on file?
No EIN was found on file for 13 Terhune at the time of registration.
Who Sells to This Business
Based on the business category, these service providers typically target this type of business.
4 companies similar to 13 Terhune registered in Fairfield County in the last 30 days
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