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OY Sirius Capital Partners
OY SIRIUS CAPITAL PARTNERS AB is a SEC-registered investment adviser in HELSINKI, UUSIMAA, registered since 2015. It is based in Finland. The firm advises on...
OY Sirius Capital Partners
OY SIRIUS CAPITAL PARTNERS AB is a SEC-registered investment adviser in HELSINKI, UUSIMAA, registered since 2015. It is based in Finland. The firm advises on investment strategies.
General information
Firm type
Single Family Office
Year founded
2017
Location
Region
Europe
Country
Finland
City
Helsinki, Uusimaa
Corporate office
Mariehamn, Åland, Finland
Principals
Peter Seligson
Owner and Chairman
Sector focus
Frequently asked questions
Who runs investment decisions at OY Sirius Capital Partners?
Peter Seligson, the former chairman of Seligson & Co, drives investment decisions as the firm's owner and chairman. He is supported by a small internal team and engages external advisors for due diligence. The firm has not publicly named other investment professionals or a formal investment committee.
Where does the underlying wealth come from?
The wealth originates from the 2017 sale of Seligson & Co, the Finnish fund management company, to Sweden's Lansforsakringar Bank. Peter Seligson's family had built the firm over decades into a recognized name in Finnish retail and institutional fund markets. The liquidity event provided the capital base that OY Sirius Capital Partners now manages.
Is OY Sirius Capital Partners structured as a single family office or does it operate more like a venture firm?
It is a single-family office, not a venture firm, and does not raise third-party capital. Its investment activities — fund commitments, direct minority stakes, and real estate — are all deployed from the Seligson family's proprietary balance sheet. The firm does not market itself to external LPs or participate in GP-led fundraising rounds as a manager.
Does the firm participate in fund commitments or only direct deals?
OY Sirius Capital Partners uses a hybrid approach, allocating to Nordic private-equity and growth funds while also making direct minority investments. The direct positions frequently involve board seats or active advisory relationships, particularly in smaller Finnish and Swedish companies where the Seligson name carries credibility from the asset-management era.
Which sectors does OY Sirius Capital Partners typically target?
Based on public registry data and Seligson's disclosed investment pattern, the firm favors financial services, technology-enabled businesses, and commercial real estate. Its geographic lens is primarily Finland and Sweden. The firm has not published a formal sector-exclusion policy.
Does the firm maintain philanthropic structures, and how are they separated?
Peter Seligson has a public history of charitable giving in Finland and Åland, but the family office has not disclosed a dedicated foundation or DAF structure. It is unclear whether philanthropy is managed inside Sirius Capital or through separate family vehicles.
What is the firm's known posture on co-investments alongside external GPs?
The firm selectively co-invests alongside Nordic GPs in direct-company rounds, a pattern visible in Finnish corporate registry filings. It does not operate an open co-investment platform or club. These co-investments are executed on a deal-by-deal basis, leveraging the Seligson family's long-standing relationships in the Nordic financial community.
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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