By Rupert Hargreaves According to Groupm, the world’s leading media investment company, the UK is the largest advertising market in Europe. Ad revenue is expected to hit £41.3bn this year and could grow to £50bn by 2028. The sector exported services worth £15.6bn in 2022 and is expected to grow 4.6 per cent overall this year, outpacing the wider economy by a large margin. Josh Krichefski, Groupm CEO UK & EMEA, as well as president of the IPA, told City A.M. the UK has a unique place in the world of advertising and media due to its culture and diversity. “Advertising is quite unique in the sens…