Tyrrells has built its success on the back of a strategy that has never included broadcast media. It preferred a unique blend of "packvertising," word of mouth and social media to reach consumers one by one. However, following the arrival of a new marketing boss last year and faced with the next stage of its growth, it has for the first time invested GBP750k in an out-of-home campaign that will run across London and the South East in a bid to reach a wider range of consumers in the lead-up to Christmas.