The eight-month campaign kicks off in early July and will provide O2 Gurus content to the tech-focused brands and their global audience of 22 million people.
The partnership includes activity such as video content co-created by Future for the O2 Gurus website and Future's channels, a Gizmodo themed week, a T3 'Twitter party', T3 interactive iPad ads, reader events and a TechRadar in-store pop-up.
Stuart Staves, the advertising sales director of Future Technology, said: "Future's technology brands have a huge consumer reach, active social channels and an engaged audience often looking to make a purchase.
"O2 is a perfect brand partner and we have been able to develop a solution that includes content innovation, digital, social and experiential activations and assets which O2 will deploy on their own website."
O2 Gurus are the network's experts who provide free tech help in O2 shops, online and by phone.
Phil Nolan, the guru leader at O2, said: "O2 Gurus are there to give help and inspiration to everyone and working with Future means we can bring them to an even wider audience."