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Abacon Capital
Abacon Capital stewards the Büll family fortune built through B&L Group real estate and Encavis AG.
Abacon Capital
Founded in 2021 by Albert Büll, Abacon Capital formalizes the investment activity behind one of Germany's quiet compounding fortunes. The wealth traces to B&L Group, the real-estate developer behind Hamburg's Hafenpark Quartier and the KII mixed-use project in Düsseldorf, and to Encavis, the listed renewable-energy producer Büll took private in a consortium with KKR and Viessmann Generations Group (per Bloomberg, 2024). The office is run from Hamburg with CEO Tobias Krauss, who also leads publicly traded eyewear retailer Mister Spex. The firm pursues an unconstrained mandate across asset classes — private equity, direct co-investments, public equities, and real estate — with a sector map that spans energy transition, climate tech, deep tech, and mobility. Abacon participates across the capital structure from Series A through buyout stages, sourcing deals in Europe, North America, and Africa. Confirmed holdings reveal a firm equally at home in listed securities and physical assets: the office holds a position in Bitcoin Group SE and directly owns commercial and residential properties across Hamburg, Frankfurt, Dresden, and Berlin, including the Clipper Boardinghouses brand and Hotel Elbflorenz. Its technology interests target advanced materials, cybersecurity, and edge computing. Abacon maintains a deliberately lean disclosed footprint. The office is part of the Anglo German Club and the Förderkreis Internationales Musikfest Hamburg, and its philanthropic activity flows through the Sopowerful Foundation and the Stiftung Elbphilharmonie. In March 2024, Albert Büll, Viessmann, and KKR completed the acquisition of Encavis AG, a milestone that makes visible the office's ability to anchor multi-billion-euro consortium transactions from a permanent-capital base. What distinguishes Abacon is an ownership architecture that fuses industrial operating DNA with institutional co-investment discipline. The office participates alongside firms like KKR on complex energy-infrastructure take-privates while independently managing an operating real-estate portfolio that includes hotels, boardinghouses, and commercial developments. That dual posture — consortium partner and direct landlord — gives Abacon a sourcing and underwriting vantage point that single-strategy family offices rarely hold.
General information
Firm type
Single Family Office
Year founded
2021
AUM
Undisclosed
Location
Region
Europe
Country
Germany
City
Hamburg
Corporate office
Hamburg, Germany
Principals
Albert Büll
Founder
Tobias Krauss
CEO
Sector focus
Frequently asked questions
Who runs investment decisions at Abacon Capital?
CEO Tobias Krauss leads the office's investment activity. Krauss concurrently serves as CEO of Mister Spex, a publicly traded German eyewear company, giving Abacon an uncommon operator lens through which it evaluates opportunities. Founder Albert Büll retains ultimate strategic oversight.
How does Abacon Capital source proprietary deal flow?
The office sources through the Büll family's deep German industrials network, the Anglo German Club, and consortium relationships forged during the Encavis AG take-private. Its direct ownership of operating real estate across Hamburg, Berlin, Frankfurt, and Dresden generates sector-specific origination channels unavailable to pure financial investors.
Is Abacon Capital structured as a single family office or does it operate more like a venture firm?
Abacon is a single-family office with a multi-asset mandate. It combines direct private equity, fund commitments, public-equity positions, and real-estate operating assets under one permanent-capital structure. The venture-like portion of its activity — Series A through growth-stage technology investments — is one component of a broader platform that also anchors consortium buyouts.
Does Abacon Capital participate in fund commitments or only direct deals?
Abacon uses both. Its investment types span fund-of-funds commitments, private equity, direct co-investments, SPVs, and real estate. The March 2024 Encavis AG take-private, executed alongside KKR and Viessmann, demonstrates the office's willingness to commit directly to large-cap consortium equity as well.
What investment stages does Abacon Capital typically target?
The office covers the full corporate lifecycle. Technology investments span Series A through Series C, while its private-equity activity targets growth and buyout stages. Public-equities positions and direct real-estate holdings round out an unconstrained deployment approach.
How is Abacon Capital related to B&L Group and Encavis?
Founder Albert Büll built B&L Group as his core real-estate development platform and held a controlling stake in Encavis AG, the Hamburg-based solar and wind park operator. Abacon Capital is the single-family office that now stewards the proceeds and reinvests across the same industrial themes. The Encavis take-private consortium — Büll, KKR, and Viessmann — exemplifies how the family's operating legacy flows directly into the office's current mandate.
Does Abacon Capital maintain philanthropic structures, and how are they separated?
Yes, the family channels philanthropic activity through the Sopowerful Foundation and the Stiftung Elbphilharmonie. These are structurally distinct from the family office's for-profit investment activities. The foundation focuses on social welfare and arts patronage, including support for Hamburg's Elbphilharmonie concert hall.
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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