"A second NFL game headed to the capital is fantastic news for sports fans and will help to inject tens of millions of pounds into the city's economy."
The NFL has played a regular-season game at Wembley in each of the last five years but this will be the first time that two games have been hosted in London in one season.
The Jaguars have agreed to play one home game in London each year from 2013 through to 2016.
Participation in amateur American football in the UK has risen over the past few years, growing by approximately 15 per cent per year since 2007, while television audiences for NFL games have risen 154 per cent since 2006.
Capacity crowds of 80,000 are expected to attend both Wembley matches, according to Johnson, whose London & Partners promotional agency has been working closely with the NFL to try to bring more games to London.