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Bannerstone Capital
Bannerstone Capital is a single-family office in McLean, Virginia, led by Daniel S. Sullivan.
Bannerstone Capital
Bannerstone Capital was established as a single-family office in McLean, Virginia, led by Managing Partner Daniel S. Sullivan. The firm's wealth origin and founding year are not publicly disclosed. The firm invests across private equity, venture capital, real assets, and private credit, targeting both direct control investments and co-investment opportunities. Its portfolio includes stakes in healthcare, technology, and business services companies. Geographically, Bannerstone focuses on North America, with select transactions in Europe. Bannerstone operates with a lean team and does not publicly disclose its AUM or number of professionals. The firm maintains a long-term horizon, often holding investments for extended periods. Recent activity is not publicly reported. Bannerstone's structural differentiator is its hybrid model as a family office that also manages capital for select external co-investors, while retaining full discretion over its core portfolio. This allows it to move swiftly on deals without the fundraising cycles of traditional private equity firms.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
McLean
Corporate office
McLean, VA, United States
Principals
Daniel S. Sullivan
Managing Partner
Sector focus
Frequently asked questions
Who leads investment decisions at Bannerstone Capital?
Managing Partner Daniel S. Sullivan leads Bannerstone Capital and oversees all investment decisions. Sullivan has been the firm's public face and directs its private equity and venture capital activities (public record).
What types of investments does Bannerstone Capital make?
Bannerstone makes direct investments and co-investments across private equity, venture capital, real assets, and private credit. The firm targets middle-market companies in North America, with select European deals.
Is Bannerstone Capital a single-family office or open to external capital?
Bannerstone is structured as a single-family office but selectively partners with external co-investors on specific transactions. The firm retains full discretion over its core portfolio and does not operate a traditional fund structure.
Where is Bannerstone Capital headquartered?
The firm is headquartered in McLean, Virginia, in the Washington, D.C. metropolitan area. It does not operate additional publicly disclosed offices.
What is the known wealth origin behind Bannerstone Capital?
The wealth origin of Bannerstone Capital is not publicly disclosed. The firm does not tie itself to a specific family fortune in public filings or its website.
Does Bannerstone Capital participate in fund commitments or only direct deals?
Bannerstone primarily makes direct investments and co-investments alongside other firms. The firm does not appear to commit to external funds as a limited partner, though its structure allows for flexibility.
How does Bannerstone Capital source deal flow?
Bannerstone sources deal flow through its network of intermediaries, direct relationships with company management, and partnerships with other family offices and private equity firms. The firm's team evaluates opportunities sourced from its professional network.
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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