Real EstateProperty Holding & InvestmentActiveVerified

Brentwood Circle Properties

Mark Sirkin, Principal

Brentwood Circle Properties LLC appears to be a real estate holding or investment entity based at 25 Brentwood Circle in Danbury, Connecticut. The LLC is associated with Mark Sirkin, and the candidate listings show properties for sale on the same street, suggesting the LLC may own or manage condominium units in the Brentwood Circle area. The business likely focuses on residential real estate in Danbury, CT.

Filed May 1, 2025 · Danbury, CT · Fairfield County

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Source

Connecticut Secretary of the State (business.ct.gov) · Entity 3206594 · Retrieved July 25, 2026

Search the registry for 3206594 ›JSON record ›

About Brentwood Circle Properties

Brentwood Circle Properties LLC was formed in Connecticut on May 1, 2025, with Mark Sirkin as principal. Its domain was registered over 11 years earlier, on June 5, 2013, through GoDaddy, and the website is modern and online-only. We estimate annual revenue under $100,000 and an employee count of 1 to 5. The company is a property holding and investment firm based in Danbury, Connecticut, and no annual report or EIN is on file yet.

  • Domain registered 4,348 days before the filing date.
  • Principal is Mark Sirkin.
  • Website is modern and online-only.
  • We estimate revenue under $100K and 1-5 employees.
  • 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 24, 2026.

One of 118 new businesses registered in Danbury in May 2025, one of 4 real estate businesses.

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Filing Details

Entity NameBrentwood Circle Properties LLC
Entity TypeLLC
Entity Number3206594
Filing DateMay 1, 2025
Principal AddressLocked
City / State / ZipDanbury, CT 06810
CountyFairfield
TimezoneEastern (ET)
EIN on FileNo
WebsiteYes · domain registered 4348 days before filing · registrar GoDaddy
Website BuildModern
Annual ReportNot yet filed
Estimated Revenue<$100K (estimate)
Estimated Employees1-5 (estimate)
FootprintOnline only (estimate)
First Recorded by DayOneLeadJuly 25, 2026 (450 days after filing)

Verified Business Profile

SubcategoryProperty Holding & Investment

Contact Information

WebsiteLocked
PhoneLocked
EmailLocked
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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.

Domain RegisteredLocked
Domain AgeLocked
RegistrarLocked
Website PlatformLocked
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Officers / Authorized Persons

M
Mark Sirkin
Principal
Address locked

Frequently Asked Questions

When was Brentwood Circle Properties registered?

Brentwood Circle Properties was registered as LLC on May 1, 2025 in Connecticut.

Where is Brentwood Circle Properties located?

Brentwood Circle Properties is based in Danbury, CT, 06810, in Fairfield County.

What type of business is Brentwood Circle Properties?

Brentwood Circle Properties is classified as a real estate business (property holding & investment).

Does Brentwood Circle Properties have an EIN on file?

No EIN was found on file for Brentwood Circle Properties at the time of registration.

Who Sells to This Business

Based on the business category, these service providers typically target this type of business.

InsuranceWeb DesignerAccounting
Registered in the last 30 days

4 companies similar to Brentwood Circle Properties registered in Fairfield County in the last 30 days

Black Hills Land and CapitalStratford · Sep 16, 2026
JC Legacy GroupNorwalk · Sep 15, 2026
Devine Property GroupStamford · Sep 12, 2026
Havens PropertiesSherman · Sep 2, 2026
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