On Friday, Premier League champions City were handed a two-year Champions League ban and fined 30m euros (£25m).
The decision is subject to appeal to the Court of Arbitration for Sport.
“The fans can be sure of two things. The first one is that the allegations are false,” said Soriano.
“And the second is that we will do everything that can be done to prove so.”
In response to the allegations of overstating its sponsorship revenues, Soriano – speaking in a video released by the club – said: “The owner has not put money in this club that has not been properly declared.
“We are a sustainable football club, we are profitable, we don’t have debt, our accounts have been scrutinised many times, by auditors, by regulators, by investors and this is perfectly clear.”
He added that the club felt they were “considered guilty” on “every step of the way”.
“We did cooperate with this process. We delivered a long list of documents and support that we believe is irrefutable evidence that the claims are not true,” said the Spaniard.
“It was hard because we did this in the context of information being leaked to the media in the context of feeling that every step of the way, every engagement we had, we felt that we were considered guilty before anything was even discussed.
“At the end, this is an internal process that has been initiated and then prosecuted and then judged by this FFP [financial fair play] chamber at Uefa.”
Uefa have declined to respond to Soriano’s statement.