Every new New York business filing, every dayNew Real Estate Businesses in Harrison, NY
9 real estate businesses recently registered in Harrison, New York.
Updated October 7, 2026 · Most recent business filing Dec 22, 2025
Every new New York filing, every day
See how it worksAbout Real Estate Businesses in Harrison
This page lists new real estate businesses registered in Harrison, New York. We currently track 9, sourced directly from the New York Division of Corporations and refreshed daily as new real estate companies file.
Recent additions include K5 Equities, K5 Equities, and Mainstay. The most recent real estate business filing was on Dec 22, 2025.
Each entry shows the filing date and, where we can verify it, the owner name and contact details. If you sell to real estate businesses in Harrison, this is one of the freshest prospect lists in the market.
All Filings
K5 Equities
Dec 22, 2025Real estate investment firm founded in 1980, specializing in acquiring, adding value to, and repositioning multifamily properties in the NY metro area, with over $1 billion in transactions. Principal address is 600 Mamaroneck Avenue, Harrison, NY, while K5 Equities operates from 95 Church Street, White Plains, NY.
K5 Equities
Dec 22, 2025NY metro real estate investment firm specializing in acquiring, adding value, and repositioning multifamily properties, completing over $1 billion in transactions since 1980. Based in White Plains, NY, with contact info matching K5 Equities.
Mainstay
Oct 29, 2025The LLC name suggests a technology or lab business.
Armstrong Real Estate Holdings
Oct 20, 2025The LLC filing for Armstrong Real Estate Holdings from Harrison, NY likely represents this same business.
UDR
Oct 15, 2025UDR is a publicly traded real estate investment trust that develops, owns, and manages upscale apartment communities in major U.S. markets. The LLC UDR PENFIELD is likely a property-specific entity within UDR's portfolio. The company's website features portfolio overviews and contact information for leasing and corporate inquiries.
AddressUSA
Aug 19, 2025AddressUSA, Inc. They have a national partnership with Gannett Co., Inc. as per press releases.
Privé Haus
Jun 4, 2025Privé Haus is a New Jersey real estate brokerage founded by top-producing agents DJ and Nici Ten Hoeve, who opened the firm under Side's platform after 17 years with Keller Williams. The website offers real estate services for buyers and sellers in Holmdel and surrounding areas, with a focus on residential transactions.
Resmark Equity Partners
Mar 31, 2025Resmark (The Resmark Companies) is a real estate investment firm that raises capital from institutions and private investors for homebuilding, land development, and multifamily projects. The LLC 'Resmark Equity Partners, LLC' is registered in New York and may be a related investment vehicle.
RAM Companies USA
Aug 10, 2023The RAM Companies USA is a real estate acquisition, development, and management firm with over 40 years of experience. Its portfolio includes commercial real estate projects, and its principal address is in Harrison, NY, though website contact numbers are in Maine.
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