The agency has worked with Atos since 2017 on a public affairs brief.
PR and digital comms for Atos was previously handled by 3x1, which continues to work with the client on other accounts.
The new account, which was won following a competitive pitch, will see Engine MHP work with Atos to design and implement a new 'channel-agnostic' approach to all external comms.
Rachel Bower, head of brand & reputation at Engine MHP, said: “We’re delighted to have been appointed to lead this exciting brief which represents an ambitious new approach to communications.
"With so many tools and channels now at our disposal, it’s outdated to look at traditional disciplines like reputation management, public affairs and digital communications in silos. As a digital innovator, Atos understands this better than most and is leading the way in a new approach to support the business.”
Kulveer Ranger, senior vice president – strategy and communications at Atos UK&I, said: “This appointment reflects our new holistic approach to presenting the Atos brand and increasing awareness of our capabilities, using all the tools and channels at our disposal - reflecting the positive digital transformation work Atos delivers across the public and private sectors. We chose Engine MHP because of their truly integrated story-first approach, that will drive forward multi-channel campaigns for our business.”