The Surrey-based party planning and event management company has been tasked with sourcing venues and providing event and production management for both events, which will be hosting 370 staff between them.
The two events will be held later this month (December) at two iconic venues in each city – The British Library in London and The National Museum of Scotland in Edinburgh.
Mike Walker, managing director, MGN Events said: "This is the second year we have worked with thetrainline.com. We really value the relationships that we build with our clients and are always delighted when they want to work with us again. For us, it is an endorsement of our commitment to excellence and a job well done when people come back time and again."