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We map the number of agencies in the UK agency sector together with our partners at The Data City, whose sophisticated machine-learning tool allows us to find and categorise active agencies after adjustment for dormant companies and those in liquidation or administration.
We can then divide the list in a number of ways. Based on agency registration at Companies House, we can identify which agencies belong to one of the ‘Big Seven’ – Dentsu Group Inc, Publicis Groupe SA, Stagwell Inc, The Interpublic Group of Companies Inc, Vivendi SA, Omnicom Group Inc, WPP PLC – holding companies, and which can be classified as independent.