The non-profit organisation was founded in 2006 by tech industry heavyweights including IBM, Hewlett-Packard and Dell to tackle growing energy consumption in data centres.
Other member partners include Microsoft, Facebook, Google and eBay.
The consortium works with partners to address issues around data facilities, which house an increasing amount of energy-hungry IT equipment, becoming more efficient and more environmentally friendly.
The search for an EMEA agency comes after the consortium appointed Weber Shandwick last month as its US-based lead marketing comms agency and Weber Shandwick Japan to cover the Asia-Pacific region.
The b2b remit calls for the agency to help the consortium target policy makers, business professionals, sustainability professionals and the IT and facilities communities.
The Green Grid marketing committee chair Michelle O’Brien said: ‘We want our agencies to help communicate our mission of becoming the global authority on resource-efficient data centres and business computing ecosystems.’