Our team

Only a shared focus of all those involved in reaching a joint objective will bring the desired success. Every single individual must utilise and implement their abilities fully for the sake of the whole; then, everyone benefits more than they would from the sum of all the individual abilities. We appreciate your trust!

Willy Graf, lic. iur. HSG

Willy Graf, lic. iur. HSG

Owner and Managing Director of VVK AG

The founder of VVK AG was the founding lecturer for financial planning for many years at what is now the Institute for Financial Planning IfFP. He developed the business model, provision planning, and asset management for the members of large partner associations at favourable and transparent prices. He has been advising families and individuals at their homes with neutral and independent recommendations for provision, investment, and tax optimisation – for the past 15 years. A wealth of experience has been accumulated from around ten thousand visits, which he shares with participants of the successful VVK AG workshops. His hobbies are engaging in the Schlaraffia society, skiing, and touring on his motorcycle.

Oxana Bärtsch, Dr. oec. HSG

Oxana Bärtsch, Dr. oec. HSG

Asset manager, member of the management

Ms Dr Bärtsch already gathered her first experiences in the VVK Group in 2002 as part of her exchange programme at the University of St. Gallen as a provision planner to finance her studies, which she completed with distinctions. After completing her PhD – also at the University of St. Gallen – on the subject of “The Consumption Capital Asset Pricing Model: an empirical research for the Swiss capital market under consideration of seasonal effects”, she decided to stay with our group. The mother of three works today as a postdoctoral financial analyst. As a member of the general management, she is responsible for product analysis and portfolio management. If she’s not spending time with her family, she enjoys skiing and jewellery design.

Daniel Gubser

Daniel Gubser

Provision consultant and workshop leader, member of the management

Daniel Gubser is a trained auto mechanic who then pursued further education to become an insurance specialist. He worked for several insurers over a number of years in the area of provision planning, insurances, and asset optimisation. At VVK AG, he is responsible for the workshops and consulting in the field. He has a passion for archery, having founded his own association and investing great effort in young talents – which is also why he completed a training to become a youth and sport leader.

Sarah Lutz, Marketing expert with federal certificate FA

Sarah Lutz, Marketing expert with federal certificate FA

Assistant to the management

Sarah Lutz has received her Swiss Certified hotelier – restaurateur (HF) title in 2009 and then worked at various renowned hotels for several years. Over the last seven years, Sarah Lutz has been working as the assistant to the management and in the Sales & Marketing department at a leading software company. She joined the VVK Group in March 2018 as management assistant. She enjoys spending her free time in nature and with friends, with hobbies including hiking, skiing, and cycling.

Jan Koller, Business economist HF

Jan Koller, Business economist HF

Provision consultant

Jan Koller has been at the VVK Group since 01/08/2016 and looks after the responsible contacts at large national associations part-time. He holds a Swiss Certified degree in Business Management (HF). Before joining us, he worked at a large Swiss insurer for over 17 years, in the field of provisions. In the past 10 years, he has been looking after independent insurance brokers in the area of private provision. To complete a full working week, he additionally works at another company of the VVK Group.

Hülya Aydemir, Business economist HF 

Hülya Aydemir, Business economist HF 

Retirement planner

Hülya Aydemir started studying at the University of St. Gallen. During one of her compulsory internships, she decided to switch over to professional employment and worked for various years in the telecommunication industry in planning and controlling, most recently as a Controlling Manager. She decided to finish her studies while still working. After graduating as a Swiss Certified Business Manager (HF), she joined our team as a provision planner. She is responsible for creating the provision documents. Miss Aydemir is married with three children. When she’s not caring for her family, her hobbies are painting and writing.

Ahu Güler

Ahu Güler

Retirement planner

Ahu Güler has years of experience in the pension fund asset industry and is currently finishing her studies to become a Swiss Certified Financial Planner. At VVK AG, she is responsible for creating the provision documents together with Hülya Aydemir. She is married with two children. When she is not spending time with her family, she enjoys cooking, hiking, and jewellery design.

Salome Kettenhummer

Salome Kettenhummer

Head of administration

Salome Kettenhummer worked at various health insurers as a sales consultant and sales coordinator. At VVK AG, she heads the Administration team. Her favourite hobbies include cycling, reading, and travelling. She lives directly next to Lake Constance and enjoys spending her free time on and by the banks of the lake.

Sultan Ennebbali

Sultan Ennebbali

Seminar organiser 

Sultan Ennebbali brings along experience in finance from an international boarding school. At VVK AG, she is responsible for preparing the marketing seminars and subsequent finishing activities while also supporting other departments. Sultan Ennebbali is married and if she’s not out skiing, she enjoys martial arts, working out at the gym, and spending time with her family.

Roxanne Hofstetter

Roxanne Hofstetter

Administration clerk

Roxanne Hofstetter completed her commercial education with a Swiss Federal Certificate in the summer of 2018. She supports the administrative team at VVK AG while also finishing her vocational diploma. In her spare time, she enjoys playing tennis and spends a lot of time with her family and friends.