New Adventure Travel (N.A.T.) said they want to show their support to the team as they prepare to take on Portugal in the semi-final match.
All staff are also being encouraged to wear the Welsh jersey.
Managing director Kevyn Jones said: “We are pleased to be supporting our national team. We want to recognise that, whilst many supporters will be attending the fanzones, there are many other businesses who will also be cheering on Wales and their efforts are much appreciated. That’s why it’s free travel across the network regardless of where you’re travelling to.”
It comes a day after Budweiser announced they were giving everyone in Wales a free beer.
Details about when and where you can claim your free beer will be announced this week - although you obviously have to be over 18 to claim it.
By Cathy Owen