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Equity.com
Arnon Katz's single-family office built on the ultra-prime Equity.com domain, investing in direct real estate and private tech from New York.
Equity.com
Arnon Katz founded Equity.com in 2006, acquiring the domain shortly after selling his money-market portal business within MFS Investment Management to SunGard. The windfall provided the capital base for a single-family office that uses the premium web address as both its name and a branding asset — an unusual fusion of digital real estate and traditional principal investing. Katz has kept the office's discretion high; no outside investors are known. The office deploys capital primarily into direct real estate holdings and private technology companies. Known real estate focus includes multi-family and commercial properties in New York, where Katz is based. On the tech side, Equity.com has backed enterprise-software and fintech ventures, often at seed or early stage, leveraging Katz's own operating background. The firm does not publicly disclose a fund structure, suggesting a balance-sheet deployment model rather than a blind-pool raise. Named portfolio companies are held closely. Katz runs operations directly from New York, with no disclosed satellite offices or dedicated investment partners listed. The team size appears deliberately lean — likely a principal and a small support staff — consistent with a family office that prioritizes capital preservation and opportunistic direct bets over fee-generating AUM scale. The office maintains no known philanthropic foundation or club affiliation (per public record). The structural distinction of Equity.com is the asset itself: the domain. Unlike any other single-family office, a material portion of the office's balance-sheet value and sourcing identity resides in its URL. The domain draws unsolicited inbound deal flow, functioning as a digital origination engine that lowers the cost of proprietary sourcing without a large analyst bench.
General information
Firm type
Single Family Office
Year founded
2006
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Principals
Arnon Katz
Founder
Sector focus
Frequently asked questions
Who runs investment decisions at Equity.com?
Arnon Katz, the founder, is the sole known investment principal. He operates the office directly, drawing on his experience as a fintech operator who sold his division within MFS Investment Management to SunGard. There is no public record of an investment committee or outside CIO.
How does Equity.com source proprietary deal flow?
The office's most unusual sourcing advantage is its domain name. 'Equity.com' generates significant unsolicited inbound inquiry from entrepreneurs, brokers, and intermediaries seeking capital, which functions as a passive origination channel. Katz supplements this with his own network from the fintech and New York real estate communities.
Is Equity.com structured as a single family office or does it accept outside capital?
Equity.com operates as a single-family office for Arnon Katz. No outside limited partners, co-investors, or multi-family-office services are publicly disclosed. The capital base derives from Katz's 2006 exit, not from external fundraising.
What asset classes does Equity.com invest in?
Direct real estate and private technology companies form the core. Real estate activity centers on New York multi-family and commercial properties. Technology investments target enterprise software and fintech, reflecting Katz's operating history. There is no indication of fund commitments, public equities, or fixed-income allocations.
Does Equity.com maintain a philanthropic foundation?
There is no publicly known philanthropic vehicle attached to Equity.com or Arnon Katz. The office appears structured exclusively for for-profit principal investing.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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