Birnam Oak Advisors

Birnam Oak Advisors operates as a private single-family office, managing wealth without a public communications footprint.

Birnam Oak Advisors

BIRNAM OAK ADVISORS, LP is an SEC-registered investment adviser in NEW YORK, NY, registered since 2023. The firm manages approximately $577 million in assets. It employs 7 staff and 3 investment advisers.

General information

Firm type

Single Family Office

Year founded

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AUM

Undisclosed

Location

Region

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Country

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City

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Corporate office

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Is Birnam Oak Advisors a single-family office or a multi-family office?

Its legal structure as a limited partnership and total absence of public marketing or external client solicitation indicate it operates as a single-family office. The firm does not appear to manage third-party capital or offer services to outside families.

Who runs investment decisions at Birnam Oak Advisors?

No principals, investment committee members, or key decision-makers are publicly identified. The firm maintains a fully closed posture, and no named operators have been linked to it through regulatory filings.

How does Birnam Oak Advisors source its deals?

The sourcing model is not publicly disclosed. Single-family offices in this profile typically rely on long-standing professional networks, direct GP relationships, and co-investment invitations—but no specific sourcing channels are confirmed for this firm.

Does Birnam Oak Advisors participate in fund commitments or only direct deals?

There is no public information on the firm's split between direct investments and fund commitments. Its strategy remains opaque, and no specific deals or LP positions are a matter of record.

Where does the underlying wealth come from?

The origin of the family wealth is not publicly disclosed. No founding entrepreneur, operating business exit, or inherited fortune has been credibly tied to the firm.

Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: Jun 3, 2026. Continuous refresh with full update cycles at least every 30 days.