Our Team
Finance & Human Resources
We look after the financial administration and support our employees in all staff-related matters.

ZurichStefania WengerHead of Finance

ZurichEsther PollhammerHR Manager

ZurichMartina DübendorferFinance

ZurichSidar DurmazFinance

ZurichLelani EsterhuizenFinance

ZurichBarbara HessFinance

ZurichFlorence HuegiFinance

ZurichSuheila KammermannFinance

ZurichJane SiuFinance

LondonElizabeth WeedonHead of Finance & HR

LondonDiana AltamiranoFinance

LondonNatalia MalyukManagement Accountant

Daniela Schmidmeister
Monday to Friday
9 am – 4 pm (UTC+1)
Not available on the following public holidays:
- 25.12.2025 Christmas Day
- 26.12.2025 Boxing Day
- 01.01.2026 New Year’s Day
- 02.01.2026 St. Berchtold’s Day
- 03.04.2026 Good Friday
- 06.04.2026 Easter Monday
- 01.05.2026 Labour Day
- 14.05.2026 Ascension Day
- 25.05.2026 Whit Monday
- 25.12.2026 Christmas Day