David has worked in large, medium, and small agencies, owner-managed and partnership independents to networked UK start-ups and established agencies owned by the Global holding companies.
David has extensive UK, EMEA and Global market experience in B2B, B2B2C, B2C, Intermediary and TMLA channels and has partnered with many of world’s leading brands and businesses across numerous categories in Retail, Telco’s, Digital Marketplaces, Energy/Utilities, Financial Services, Consumer Electronics, Sports & Leisure, Airlines, Automotive, Fintech and Not-For-Profit inc. UK Government.
David spent the last 19 years of his agency career at Iris Worldwide, joining the leadership team as a partner in 2002, which was responsible for growing the agency from a single office, <£3m income and 30 people to a Global agency network generating £100m+ income, with over 1,000 people across 17 offices in 13 countries.
Following the sale of Iris to Cheil Worldwide and completion of the earn-out process, David left Iris in August 2021 and founded Trebla Consulting Limited. David now advises agencies, brands, and businesses with a focus on scaling for sustainable growth (and eventual sale), client leadership and coaching and mentoring support to leadership teams.