Zenith UK
Harriette Cassie is a seasoned professional in media planning and client management, currently serving as a Client Partner, Business Director, and Planning Director for significant accounts such as Aviva and Macmillan Cancer Support at Zenith UK since July 2018. Prior experience includes managing the Boots Retail account at MediaCom and overseeing the transition of Coty's consumer beauty brands from Procter and Gamble while at Zenith UK. Earlier roles included managing multiple accounts for P&G and Spectrum Brands at Starcom Mediavest Group, as well as strategic planning and team leadership. Harriette holds a Bachelor's Degree in History and International Relations from Loughborough University, completed in 2013.
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Zenith UK
Welcome to Zenith – the ROI agency. Nowadays, brands want rapid, spectacular growth and they expect media to deliver it. Clients used to give us media briefs that said “deliver 80% awareness” or “give me an impactful Christmas campaign”. Now we hear: “take me from 4th to 1st in my category”, “help me grow 10% in a market declining 10%” or “make me the most loved brand in my industry”. These are huge asks of media, that can’t be met through tweaking the media plan of two years ago. Decades of advertising research prove that without a big change, large brands stay large and small brands stay small. This is why Zenith help brands make bold moves. Bold moves are big, brave changes to media strategy, delivering more impact for brands and more value for consumers. Bold moves are backed up with a solid forecast – they are a better path to growth. Bold moves build a partnership – we believe in this approach so much we link our growth to your success. Bold moves bring bigger ROI. This approach works for our clients, our people and consumers – it’s why we are recognised as the UK’s best media agency. Campaign's Best Places to Work 2023 and The Sunday Times Best Places to work 2024. On the podium for Campaign's Agency of the Year for the last three years and most awarded agency at the Campaign Media Awards for 2023 and 2024.