Join the future.

Cornerstone Join the Future Cornerstone Join the Future on mobile

Join the future.

Welcome to Cornerstone, the leading UK mobile infrastructure services company. Everything we do has at its heart the experience of tens of millions of voice and data customers using the networks that depend on our infrastructure. Our expertise delivers connectivity solutions for today and the future.

Delivering excellence.

Our greatest asset is our people. A collective of innovative, passionate and knowledgeable individuals who enable us to deliver the industry-leading solutions that connect you to what matters.

About us



The UK's leading mobile communications providers trust our infrastructure expertise to manage a UK estate of over 20,000 sites. Together we are enhancing the digital experience of how we work and live.



Cornerstone connects the UK's cities, towns and countryside with our turnkey telecommunication solutions. Discover the value we bring to site design, acquisition, construction services and maintenance.

Stronger connections.

At Cornerstone's core is our network of over 12,000 landlord partnerships, enabling us to create a smarter future and shape a million possibilities.

Sharper solutions.

A smarter, more connected environment is gathering pace. 5G rollout, the Internet of Things (IoT) and digital connectivity is driving new opportunity for individuals, industries and public services. Discover how Cornerstone's sharper thinking and innovative solutions are shaping this landscape.

Digital connectivity

Inspiring transformation.

Shared knowledge and new ideas are essential in a constantly changing world which demands transformational solutions. The Cornerstone media hub is your source for industry insights, news, thoughts and innovations that will shape tomorrow.

Improving the Cornerstone Employee Value Proposition

Improving the Cornerstone Employee Value Proposition

Following our Reward Gateway award for the best Employee Value Proposition (EVP) strategy 2022, we want to share with you our case study on the challenges we faced, the approach we took and the results of our actions.

Glasgow City Council case study

Glasgow City Council signs first agreement in new initiative to boost mobile connectivity and coverage.

Glasgow City Council has signed a batch of ground-breaking new agreements with Cornerstone to deploy new mobile infrastructure sites.

Waltham case study

Waltham Playground case study

A splash of colour helps transform network poles and reflect the colours of a new play area in Waltham Borough, and helps provide better connectivity to the local area.

your future.

Having leading industry talent and working collaboratively to deliver focused results, it's no secret our people make Cornerstone successful. We welcome Innovative thinkers and those with a focus to shape success. To be a part of our future and write your own, visit our career portal.
Career portal