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Your contact persons
Carsten KosterManaging Director +49 (40) 24 42 48 - 10
With more than 25 years of experience in media research and media planning, Carsten Koster is an expert in the advertising industry. He was self-employed for a decade in the field of information management for marketing/communication and in IT consulting. Mr Koster is the Key Account Manager and Managing Director at AdVision digital.
Jochen WeilerConsultant Sales +49 (40) 24 42 48 - 67
Jochen Weiler loves communication and new business. For over 30 years he has worked for practically every type of media in sales and new business. His positions took him from IP Germany to WallDecaux and the family-owned publishing agency Kendziersky & Weiler to SevenOne Media. From there he started self-employment to work with well-known companies, including Viacom, RTL II, Tele 5 and Ströer. Weiler now brings his experience to AdVision in an advisory capacity - and loves this challenge!
Kirsten Schmidt-VoglerKey-Account Sales +49 (40) 24 42 48 - 10
The world of media has been the professional home of the native Rhinelander for more than 30 years, first in the field of media planning and later as Media Director. In renowned agencies such as Springer & Jacoby Media, Mec and others, Kirsten Schmidt’s focus and passion was mainly on the automobile industry. After two years in sales office work of the Hamburg-based publishers Burda, she has now been responsible as Key Account Manager at AdVision digital since the beginning of 2020.
Sammy NguyenData Lead +49 (40) 24 42 48 - 10
Sammy Nguyen is an expert in the field of market intelligence and marketing effectiveness. He began his career as a Data Operations Specialist at Nielsen in the field of Out-of-Home and advertising statistics 15 years ago, later as the Product Manager in Commercial/Business he was responsible for the expansion of the products OOH and advertising statistics. Since the spring of 2019, Nguyen has been enriching AdVision digital with his many years of experience and passion for data as an interface between operations, IT & management.
Constanze FriedManagement Assistant +49 (40) 24 42 48 - 26
Constanze Fried is a trained industrial management assistant and, after her training, she joined AdVision in 2011 in the production line. She has been working as Management Assistant since 2012 and is responsible for all areas of administration and customer support.
Katja AmbosManagement Assistant +49 (40) 24 42 48 - 28
In parallel to her work as dental assistant, Katja Ambos studied Social Economics with focus on business economics and graduated in 2013. After working as a Practice Manager and Management Assistant in the beauty sector, Ms Ambos rounded of the administration team in 2018 as Management and Sales Assistant as well as customer service at AdVision digital.
Frank RittmannProduction Manager +49 (40) 24 42 48 - 44
Frank Rittmann has been working in the world of media for more than 20 years. After training to become a bookseller and book publisher, he completed extra-occupational studies to become a bachelor of publishing and gathered many years of experience in a trade journal publishing house. There as departmental head, he was responsible for customer service and for dispatch handling. Mr Rittmann has been part of the AdVision team since October 2017 and he manages the department production/acquisition.