O2 (UK) Telefónica O2 had a long-standing relationship with Arsenal F.C., being their shirt sponsor until the end of the 2005/2006 season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. O2 were the main sponsor of the Channel 4 reality TV show "Big Brother" from its second series (as BT Cellnet) in 2001 until its fourth series in 2003. They also sponsored the spin-off shows "Celebrity Big Brother 2" in 2002 and "" in 2003. In total O2 sponsored five series of the show. O2 sponsored music festivals, the Wireless Festivals, from
Euphony Communications Euphony Communications Euphony Communications Ltd is a privately owned Basingstoke, UK based communications and utility company. Euphony is notable for its hierarchical customer referral structure and independent base of consultants. Euphony was founded in 1998 and does not advertise itself in conventional ways. Euphony has featured in UK national newspapers, which have referenced its rapid expansion and success since it was bought by Giles Redpath who took over as CEO in 2004 to set the company in the right direction. The shares are held thus; Giles Redpath (53%), Penta Capital (35%), management (2%), others (10%). In February 2008, Euphony was