Single Family Office

Updated:

PHOBOS, LLC

PHOBOS, LLC is a single-family office based in the United States. Its principals, wealth origin, AUM, and investment strategy are not publicly disclosed.

PHOBOS, LLC

PHOBOS, LLC is structured as a single-family office, a designation that suggests it manages the financial affairs of a single wealthy family. Its precise location within the United States, founding date, and the identity of the family it serves are not available from public records or firm disclosures. The scope of PHOBOS's investment activities is not publicly documented. No asset-class preferences, deal-stage targets, or notable portfolio holdings have been reported. The firm does not appear to maintain a public-facing website or social media presence. No information on its team size, external advisors, or affiliated philanthropic structures has been found. A recent operational event (January 2025: PHOBOS, LLC filed a standard business entity registration renewal in the United States, confirming active status.) The firm's persistence as an active legal entity — despite a complete lack of public marketing or investment disclosures — is its one observable structural differentiator. PHOBOS, LLC exemplifies an entirely private single-family office, operating below the radar of allocators, data vendors, and media.

General information

Firm type

Single Family Office

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Corporate office

United States

Frequently asked questions

Who controls investment decisions at PHOBOS, LLC?

The individuals who control investment decisions at PHOBOS, LLC are not publicly identified. No named principals, investment committee members, or external advisors appear in public records or firm disclosures.

Does PHOBOS, LLC participate in direct deals or fund commitments?

The investment approach of PHOBOS, LLC — whether direct deals, fund commitments, or both — is not disclosed in any public source. No deal activity or fund investments have been documented.

What sectors does PHOBOS, LLC invest in?

PHOBOS, LLC has not publicly stated any sector preferences. No industry tags, portfolio companies, or thematic focus areas have been reported by the firm or external media.

Is PHOBOS, LLC a single-family office or a multi-family office?

PHOBOS, LLC is classified as a single-family office. This implies it manages the wealth of a single family, though the family's identity and the firm's internal structure are not publicly confirmed.

Why is public information about PHOBOS, LLC so limited?

PHOBOS, LLC appears to operate with a high degree of privacy. No public website, LinkedIn presence, media coverage, or data-vendor profiles exist beyond minimal corporate registrations. This is consistent with a family office that chooses not to market itself or disclose activities.

Profile maintained by 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.

Need institutional-grade insight on family offices?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo