GoEuro is a search engine where users can find and book rail, air and bus transportation across the UK and Europe.
Hills Balfour is tasked with increasing GoEuro’s brand profile to both consumers and travel partners.
Jonathan Sloan, MD at Hills Balfour, said: "With an exciting app launch and further European countries’ content being added in the near future, it is a brilliant time to be coming on board."
Pablo Martinez, head of PR at GoEuro, said Hills Balfour had a "sharp and focused team with refreshing ideas".
Hills Balfour currently works with travel clients including The Las Vegas Convention and Visitors Authority, the Kenya Tourist Board and the Arizona Office of Tourism.
Jo Hartley, senior PR director at Hills Balfour, will head up the team along with account manager Jasmine Rushton and account executive Rebecca Gregory.