Under the terms of the agreement, Adidas enjoys exclusive rights for the promotion of FIFA Ballon d'Or merchandise, while Nike, Ronaldo's main sponsor and that of fellow leading candidate Franck Ribery, does not possess the same privilege.
It means the Real Madrid forward, who is the favorite to land the prize, will be unable to make money from the award in the same manner as his great rival and current holder.
"These official partnerships are the reasons why we can use the official award name within promotional activity and therefore, by the same token, why Nike could not," Ben Goldhagen, Senior PR Manager for Adidas UK and Ireland, told Goal.
Adidas produced a special edition f50 boot to commemorate Messi's fourth consecutive Ballon d'Or win last January and plans are afoot for a similar campaign in spring in the event of a Messi win in the 2013 voting.
"We would certainly look to repeat that approach next time around," Goldhagen said. "Messi has his own limited edition boots coming in March [regardless of the Ballon d'Or outcome]."
Ronaldo and Nike, by contrast, would not be entitled to market such a Ballon d'Or-inspired boot in the event of a victory for the Portugal captain.
Adidas is one of FIFA's six World Cup 'official partners' and has supplied balls and equipment for every tournament since 1970. In November, the 43-year partnership was renewed to cover all FIFA events through 2030. The previous deal was renewed in 2005 at a cost of around 30 million euros per year. The new agreement is believed to be worth significantly more.
Adidas predicts that its sales in the football category will reach record highs of 2 billion euros in 2014, up from a total of 1.7 billion euros in 2012. Much of that sum will depend on Messi and his exposure in football's great untapped wilderness - America.
Marketing plans for the Argentina captain could be made all the more fruitful were he to win the Ballon d'Or. The company has already launched a Messi range of clothing and footwear and the Argentina international is only the second footballer after David Beckham to have such a line tailored by Adidas.
"He hasn't really been marketed in the US," the director of Adidas' North American football project, Ernesto Bruce, told The Oregonian in August. "We're going to market him as the world's best player. We think the 2014 World Cup will be historic for Messi."