When asking the nation (a nationally representative sample of 2,000 UK adults): who do you think are the official Olympics Games partners, Opinium Research found:

• Only 11% of Brits are aware that BMW are an Olympics partner, a result which remains steady each month
• McDonalds and Coca-Cola consistently come out on top with around half of the nation aware they are partners; and awareness has significantly increased since January as we get closer to the games. This highlights the success and experience of these global brands in sponsoring major sporting competitions
• As the Olympics draws nearer, awareness of EDF, BT and BP has risen
• Awareness in Coca-Cola has risen the most with an increase of 17 points from January to May

Every month, in the lead up to the London 2012 Olympics, a nationally representative sample of 2,000 UK adults were asked which companies they believed to be official partners and found:(10 highest ranked mentions)
(See fig.1)

In May 2012, Opinium Research asked 2,012 UK adults if they believed the following companies (amongst a whole host of others including all the official partner sponsors) were official partners and found that the following brands seem to be benefitting despite not being official Olympic sponsors:(top 5 highest ranked mentions)
(See fig.2)