It will be Ryan’s second spell at 4mediarelations, where he worked between 2010 and 2013. He was most recently director of PR and branded content at USP.
Ryan said: "I’ve been impressed with the agency’s growth over the past few years and am looking forward to being part of its future growth plans."
4mediarelations MD David Cotgreave said: "He’s an exceptionally talented PR professional who brings a wealth of experience to the agency. We know that his extensive experience in broadcast PR will be of great value to 4mediarelations’ clients."
The agency represents a range of clients from different industries including technology (Sony Computer Entertainment and Garmin), food (Sainsbury’s and ASDA) and finance (Nationwide and Admiral).