The tool, called Ozone Ad Manager, will provide advertisers and agencies with access to first-party data from The Ozone Project and help manage digital advertising campaigns.

Ozone Ad Manager also allows content consumption habits of audience segments to be analysed and acted upon.

Full-service media agency Goodstuff has also guided the development of Ozone Ad Manger and has been granted first access to the tool for their clients as part of the deal.

The Ozone Project is a transparent programmatic advertising platform jointly formed by The Guardian, News UK, The Telegraph and Reach.

Craig Tuck, chief revenue officer at The Ozone Project, said: “We're delighted to be launching the first iteration of Ozone Ad Manager and we're hugely grateful to the team at Goodstuff for partnering with us to shape what we launch to the market.”

Dave Carpenter, head of digital at Goodstuff, said: “We have been excited to see the tool develop into an intuitive, audience-led solution and look forward to activating future campaigns through Ozone Ad Manager.”