Marshall has worked across a range of sectors, with particular experience in retail, consumer goods, energy, healthcare, and technology. Key clients include BP, Direct Line Group, Kenya Commercial Bank, BHP, and Visa. He has also worked with a number of FTSE100 CEOs and CFOs to develop and manage their digital profiles.
Before joining Brunswick, Marshall was UK CEO of Ogilvy Public Relations and EMEA Managing Director of Social, Digital and Content for Ogilvy & Mather. At Ogilvy, Marshall developed communications strategies and led digital and social media initiatives for British Airways, Irish Life, Safaricom, and many others.
Prior to Ogilvy, Marshall was EMEA Managing Director of Digital for Edelman, where he advised clients like Diageo, the BBC, BAE Systems, and Unilever on digital strategy and execution.
Previously, Marshall worked in U.S. political campaigns for ten years where he wrote speeches, TV and radio ads, and other communications for candidates and elected officials.
He has written and spoken extensively about digital and social media. In 2014, Marshall authored Facebook Zero, a widely cited paper which evaluated the consequences of the decline in organic reach for branded Facebook communities.
Marshall has lived in London since 2008 and became a British citizen in 2015. He is an enthusiastic if not very gifted photographer, and is interested in history, politics, travel, and food.