Our People

David Glen – Sales & Marketing Manager

David has a broad range of experience, primarily in sales and marketing within the telecommunication industry. As a sales and marketing specialist David concentrates on building long term relationships with clients through delivering critical results in support of their organisational objectives.

With exceptional personal communication skills and, perhaps more importantly, excellent listening skills, David assists organisations by understanding and identifying customers business needs and then intelligently implements technology to facilitate the execution of those needs.

David has managed large International businesses in the Pharmaceutical and Biotechnology industries including Pfizer, Schering AG, American Cyanamid and ICPbio, the latter involved channel management worldwide.

Tristan Glen-Gaul – Business Development Manager

Tristan is experienced in the industry of digital marketing having worked for Facebook as a marketing expert and several website design agencies helping small to medium business owners achieve results on different digital platforms. His background includes marketing and business development.

With a focus on all aspects of voice and mobile communications and management, Tristan adopts a pragmatic outcome-based approach with an emphasis on adding value to Dialtone clients.