STAMM & CO AG Holding

Stephan Stamm, the founder’s son, has been the managing director since 1996. The firm’s website positions him as the executive leading and continuously developing the company. No separate chief investment officer or investment committee is publicly disclosed, consistent with a single-family holding company governance model.

It operates as a holding company (Aktiengesellschaft) with two main blocks: a 50% equity stake in Keos Immobilien AG, which holds its Swiss real estate portfolio, and wholly owned African land and operating assets. The remaining 50% of Keos is held by an undisclosed partner, making it the firm’s sole disclosed co-owned position. The firm raises no external capital and runs no fund vehicles.

Monterra Safaris is a hunting ranch situated in South Africa’s Limpopo River Valley, and Stephan Stamm is identified as a professional hunter associated with the operation. The ranch appears to be a directly owned asset within the holding company’s portfolio, serving as both a land investment and an operational tourism business.

The portfolio is split between Switzerland and Africa. In Switzerland, the firm owns a mixed-use real estate portfolio in Basel and Altendorf via its Keos Immobilien AG stake. In Africa, starting in 2011, it has deployed capital into farmland, land holdings, and tourism projects in South Africa and East Africa as a diversification strategy.

Werner Stamm founded both the holding company and the Werner Stamm Foundation for the Conservation of Rare Equids. The foundation is an associate member of the European Association of Zoos and Aquaria (EAZA). While the foundation operates as a separate philanthropic entity, its shared founder and conservation mandate tie it to the family’s broader identity, particularly given the firm’s African land assets and safari operations.

Yes. The founder, Werner Stamm, was a long-term member of the Rotary Club Frauenfeld-Untersee. The firm also participates in hunting and conservation networks through SCI Helvetia (Safari Club International) and the Werner Stamm Foundation’s EAZA membership. These networks reflect a governance style reliant on personal relationships and conservation circles rather than institutional finance associations.

The firm focuses exclusively on direct ownership of hard assets. In Switzerland, these are stabilized commercial and residential real estate positions held through a long-term co-ownership vehicle. In Africa, the focus is on operating land assets — farmland, a safari ranch, and tourism projects — that function as permanent capital holdings. There is no disclosed venture, private equity, or public market activity.