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 it is changing the way consumers behave and interact with brands. Our passion for and expertise in location means that we deliver effective and measurable advertising campaigns that drive brand exposure and activate sales. We embrace innovation, work with cutting edge technology and love helping advertisers and brands benefit from the opportunities of the fast-paced world of location-based services!

Interested in joining us? Check out our available positions.

Christian Geissendoerfer - CEO & Founder

Christian has a passion for location-based services and their potential to transform the advertising landscape, connect people 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 regularly speaks about location-based services and mobile marketing across the world.

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, but originally hails from Germany and 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 first people in the advertising industry to embrace the move to digital and location-based advertising.

Volker Hahn

Volker is our Chief Technical Officer. He has a deep technical knowledge gained 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



Socialist, Outgoing and Loves to Sing 


Sweet, Fun-Sized Health and Yoga Pamcylopedia



Driven, Adventurous and Yoga-Loving

Huy Pham.jpg

Huy Pham

Sociable, Artistic and Loves Sports



Active, health-conscious and great sense of humour

Andy Le


Artistic, Jet-Setter and Loves Animation


Nguyen Pham

Funny, Risk Taker and Loves Performing


Sociable, Loves Shopping and Ironman figurines


Reliable and Intuitive World Traveller



Fun and Free-Spirited Wanderluster

Vasudha (Resize).jpg


Outspoken, Humorous and