Real EstateAI-powered real estate platformActiveVerified

Mainstay

C/O UNITED AGENT GROUP INC., Registered Agent

The LLC name suggests a technology or lab business.

Filed October 29, 2025 · Harrison, NY · Westchester County

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Source

New York Department of State, Division of Corporations · Entity 7746279 · Retrieved May 6, 2026

Search the registry for 7746279 ›JSON record ›

About Mainstay

MAINSTAY LABS INC. filed in New York on October 29, 2025, as an AI-powered real estate platform based in Harrison. The registered agent is C/O UNITED AGENT GROUP INC., filed personally. The company shares its address with 323 other entities and its owner name with 94 others, suggesting a service-based registration. The website is modern. We estimate annual revenue between $10M and $50M and a team of over 100 employees, operating in a hybrid model. No annual report or EIN on file yet.

  • Shares its address with 323 other entities and its owner name with 94 others, indicating a service-based registration.
  • Registered agent is a corporate service, not an individual, suggesting a larger or more formal setup.
  • We estimate revenue of $10M-$50M and over 100 employees, consistent with a hybrid AI platform company.
  • Website is modern, aligning with a tech-focused business.
  • No annual report or EIN on file yet, common for a newly formed corporation.

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 39 new businesses registered in Harrison in October 2025, one of 8 real estate businesses.

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Filing Details

Entity NameMAINSTAY LABS INC.
Entity TypeCorp
Entity Number7746279
Filing DateOctober 29, 2025
Principal AddressLocked
City / State / ZipHarrison, NY 10528
CountyWestchester
TimezoneEastern (ET)
EIN on FileNo
Registered AgentC/O UNITED AGENT GROUP INC.
Agent AddressLocked
Filed ViaSelf-filed (owner is the registered agent)
WebsiteYes
Website BuildModern
Annual ReportNot yet filed
Estimated Revenue$10M-$50M (estimate)
Estimated Employees100+ (estimate)
FootprintHybrid (estimate)
Related Filings323 at the same address · 94 with the same owner name
First Recorded by DayOneLeadMay 6, 2026 (189 days after filing)

Verified Business Profile

SubcategoryAI-powered real estate platform

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.

Website PlatformLocked
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Frequently Asked Questions

When was Mainstay registered?

Mainstay was registered as Corp on October 29, 2025 in New York.

Where is Mainstay located?

Mainstay is based in Harrison, NY, 10528, in Westchester County.

What type of business is Mainstay?

Mainstay is classified as a real estate business (ai-powered real estate platform).

Does Mainstay have an EIN on file?

No EIN was found on file for Mainstay at the time of registration.

Who Sells to This Business

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

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