Our team
Finance & Human Resources
We take care of the financial administration and support our employees in all matters related to personnel.
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
Aika Idinova
Monday to Friday
8 am – 5 pm (GMT)
Not available on the following public holidays:
- 24.12.2025 Christmas Eve, open 9 am – 2 pm
- 25.12.2025 Christmas Day
- 26.12.2025 Boxing Day
- 31.12.2025 New Year’s Eve, open 9 am – 2 pm
- 01.01.2026 New Year’s Day
- 03.04.2026 Good Friday
- 06.04.2026 Easter Monday
- 04.05.2026 Early May bank holiday
- 25.05.2026 Spring bank holiday
- 31.08.2026 Summer bank holiday
- 25.12.2025 Christmas Day
- 28.12.2026 Day following Boxing Day