m/SIX is the UK’s fastest-growing media planning and buying agency.  With over 40 offices worldwide, m/SIX is backed by WPP, the world’s largest communications agency network and embraces a unique ownership structure between The&Partnership and GroupM.

m/SIX is an industry leader in transparency, martech and next-generation audience insight.  By working with Fenestra, m/SIX will add a further layer of financial transparency and supply path optimisation across its supply chain, and be able to provide industry leading insights to its clients.  Clients include Vitality, TalkTalk, Toyota, Britvic and Virgin Money.