Family Office Seyst

Family Office Seyst

Family Office Seyst was established by Wim Griffioen, a former banker with more than twenty years in the sector. The firm supplies financial and administrative services centered on wealth preservation and investment management for multiple client families. The office allocates across private equity, real estate, private credit, and infrastructure. It also holds exposure to digital assets and collectibles. Confirmed investment stages run from seed through series G. Positions span Europe, North America, Asia, and the Middle East. The firm participates in both fund commitments and direct co-investments. No headcount or additional offices are disclosed. The firm maintains membership in VFO, the Dutch association of family offices. No operational events from the past twenty-four months appear in public records. The structure centers on a single founder-director model that integrates banking experience with tailored mandates for multiple families rather than a single lineage.