Every new Connecticut business filing, every dayTungsten Development Services Company
Stephanie Cobleigh, Principal
Tungsten Development Services Company (operating as Tungsten DSC, LLC) is a real estate development and construction management firm based in the New York City area, with a principal address in East Haddam, Connecticut. The site describes the business as a partnership for all aspects of real estate development and construction management, and includes contact phone and email for inquiries.
Filed January 3, 2026 · East Haddam, CT · Middlesex County
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Connecticut Secretary of the State (business.ct.gov) · Entity 3349123 · Retrieved July 26, 2026
About Tungsten Development Services Company
Tungsten DSC, LLC filed in Connecticut on January 3, 2026, as a real estate development company based in East Haddam. The principals are Stephanie Cobleigh and Daniel Cobleigh. The domain was registered 8 years before filing, on September 16, 2017, through GoDaddy. The website was built with GoDaddy Website Builder and is modern, matching the filing identity. We first saw the business 204 days after filing. We estimate annual revenue between $1 million and $10 million and 1 to 5 employees. The business appears to be brick-and-mortar. One other entity shares the same owner name. No annual report or EIN on file yet.
- Filed in Connecticut on January 3, 2026, as a real estate development company.
- Principals are Stephanie Cobleigh and Daniel Cobleigh.
- Domain was registered 8 years before filing, on September 16, 2017.
- Website built with GoDaddy Website Builder and confirmed to match the filing identity.
- We estimate revenue between $1 million and $10 million and 1 to 5 employees.
- One other entity shares the same owner name.
- No annual report or EIN on file yet.
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 2 new businesses registered in East Haddam in January 2026, and the only real estate development business registered there that month.
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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 Tungsten Development Services Company registered?
Tungsten Development Services Company was registered as LLC on January 3, 2026 in Connecticut.
Where is Tungsten Development Services Company located?
Tungsten Development Services Company is based in East Haddam, CT, 06423, in Middlesex County.
What type of business is Tungsten Development Services Company?
Tungsten Development Services Company is classified as a real estate development business (construction management).
Does Tungsten Development Services Company have an EIN on file?
No EIN was found on file for Tungsten Development Services Company at the time of registration.
Who Sells to This Business
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