According to ITK, @ExWhuemployee it is Dutch brewer, Heineken that are poised to win the pourage rights for the stadium having previously bid for the naming rights only to be outbid by Indian based company Mahindra.
Heineken, most recently purchased the pourage rights for Rugby World Cup, of which four matches were played at the Olympic Stadium. That deal reportedly cost them £20 million. The deal reportedly included a clause that meant its lager was not only the sole brand sold in the stadiums hosting the tournament’s matches, but that it was also the only one that can be marketed within 500 metres of those venues.
Heineken will most likely copy the model of the recent Rugby World cup by having an army of sellers serving pints on the Stadium island, as well as pop-up bars, to fend off the local competition in Stratford.