PG3
Also known as PG3 AG
Baar-based family office of Partners Group co-founders Alfred Gantner, Marcel Erni and Urs Wietlisbach; joined the Viridium Group consortium in 2025.
USEFUL FOR Co-investors
Identity
- WEALTH ORIGIN
- Partners Group (private markets firm the three co-founded)
- HEADQUARTERS
- Baar, Switzerland
- FOUNDED
- 2013
Investment approach
- ROUTES
- Companies (own capital)
Overview
PG3 AG is the Swiss family office of the three Partners Group co-founders, Alfred Gantner, Marcel Erni and Urs Wietlisbach, registered in Baar, canton of Zug. In 2025 it joined, alongside Santander Insurance, the consortium of insurers and asset managers that acquired the German life-insurance consolidator Viridium Group from Cinven.
Holdings & investments (1)
- since 2025
People
Frequently asked questions
PG3 is a multi family office based in Baar, Switzerland, founded in 2013.
PG3 invests on behalf of the Gantner, Erni and Wietlisbach founder families family (Partners Group (private markets firm the three co-founded)).
PG3 invests its own capital into companies.
Key people at PG3 include Alfred Gantner (Principal; Partners Group co-founder), Marcel Erni (Principal; Partners Group co-founder), Urs Wietlisbach (Principal; Partners Group co-founder) and Samuel Scherling (CEO).
PG3's holdings and investments include Viridium Group.
The most recent publicly reported investment by PG3 is Viridium Group (Consortium acquisition (joining as member)), announced in Aug 2025.