Early pioneers in location. Leading experts in Asia-Pacific and Europe.

We are the leading experts in location based advertising solutions in Asia-Pacific and Europe.

As an early pioneer in location based technology, we understand how consumers are changing the way they behave and interact with brands. Our passion for and expertise in location drives us to deliver effective and measurable mobile advertising campaigns, which in turn drive brand exposure and activate sales. We work with cutting-edge technology, embrace innovation, and love helping advertisers and brands benefit from the opportunities of the fast-paced, ever-changing world of location based advertising!

Interested in joining us? Check out our available positions.

Christian Geissendoerfer - CEO & Founder

Christian is passionate about location based solutions and sees the potential to transform the mobile advertising landscape, connect brands to consumers, and enrich lives. An early pioneer in location based services, he founded YOOSE in 2008 after extensive experience gained in IBM, Lotus and Deutsche Bank.

Christian loves building businesses and leading teams. A renowned expert on location based services, he often travels around the world to speak about location based solutions.

Christian is President and Founder of the Singapore Chapter of the Location Based Marketing Association, and the President of the Mobile Alliance Singapore. Christian has made Singapore his home, originally hailing from Germany, and he is fluent in German, English, French and Spanish.

  • Red Herring Asia 100 Award, Finalist 2011
  • NAVTEQ Global LBS Challenge 2009 APAC Region 3rd Runner Up, 2009
  • NAVTEQ Global LBS Challenge 2009 / 2010 EMEA Finalist, 2009/2010
  • smaato Mobile Advertising Award, Special prize winner, 2009
  • Seedcamp Week Finalist, London, 2008

Advisory Committee

Asif Khan

Asif is the founder and president of the Location Based Marketing Association, an organisation that fosters location-specific opportunities in advertising and marketing. He is a veteran tech start-up, business development and marketing entrepreneur.

Chris Reitermann

Chris is CEO of Ogilvy & Mather, China. He was one of the first in the advertising industry to embrace the move to digital and location based advertising.

Volker Hahn

Volker is our Chief Technical Officer. He has gained deep technical knowledge over an extensive career at the forefront of mobile technology. He is also MD of M-Way Solutions, a leading provider of mobile enterprise software and solutions.

The Team



Detailed, Adventurous and Analytical


Gym-rat, Protein Guzzler
and Shopaholic


Sociable, Loves Shopping and Ironman figurines




Driven, Adventurous and Yoga-Loving

Huy Pham.jpg

Huy Pham

Sociable, Artistic and Loves Sports

Vasudha (Resize).jpg


Outspoken, Humorous and

Andy Le


Artistic, Jet-Setter and Loves Animation



Active, Health-Conscious and Great Sense of Humour



Workaholic, Analytical and Ambitious


Reliable, Intuitive and World Traveller


Determined, Shutterbug and Film-Lover