Liberty Global signs AI partnership with Sierra
September 24, 2026



Liberty Global has announced a three-year partnership with Sierra, a conversational AI platform for businesses ro interact with their customers, to support the rollout of its technology across Liberty Global operating companies. Liberty Global says it is accelerating the use of AI across its businesses “to make customer interactions easier, more intuitive and more effective”.

The framework partnership agreement provides Liberty Global’s businesses with a common approach to deploy AI agents capable of engaging customers in natural language, across chat, voice and text.


Liberty Global will deploy Sierra across its approximately 80 million fixed and mobile connections in Europe through a phased programme, with implementation already started and the use cases and channel mix tailored to the requirements of individual markets, brands and customers.

Founded by Bret Taylor, former Co-CEO of Salesforce and Chairman of OpenAI, and Clay Bavor, former Google executive, Sierra has emerged as a leading company in the customer experience AI space. The company was valued at $15 billion in its latest funding round in May 2026.

Mike Fries, Liberty Global Chairman and CEO, commented: “Sierra has built a game-changing platform that we are excited to deploy across our footprint. By combining Sierra’s technology and deployment expertise with the deep knowledge of our local teams, we will deliver better customer experience across our group by making customer journeys simpler, faster and more effective.”

Bret Taylor, Sierra CEO and Co-Founder, added: “We’re excited to partner with Liberty Global — a pioneer in applied AI and a telecommunications leader with significant scale, expertise and a deep understanding of European customers. This partnership is a strong vote of confidence in Sierra’s ability to improve customer experiences, reduce the burden on support teams and grow revenue. We look forward to working with Mike and the team as we roll out agents across Liberty Global’s companies.”