Millionaire American investment banker Eric Bellquist, 41, was held yesterday in relation to the incident in which the woman was pushed on Putney Bridge.
But his lawyers say he has irrefutable proof that he was in the United States at the time of the incident
The bus managed to swerve at the last minute, narrowly avoiding running over the 33-year-old woman's head. It read: 'Our client has been wrongly implicated in this matter; he categorically denies being the individual concerned and has irrefutable proof that he was in the United States at the time of the incident.
'Consequently we expect a swift resolution to this wholly untrue allegation.’
Mr Bellquist, who lives in Chelsea, west London, joined Hutton Collins in 2002.
Over the course of various transactions he has represented Hutton Collins in the leisure, media/telecom and manufacturing sectors.
He currently represents Hutton Collins on the boards of Byron Hamburgers and was responsible for the firm's investment in Caffè Nero. Prior to Hutton Collins, Mr Bellquist worked in the European Leveraged Finance and Sponsor Coverage group at Lehman Brothers. He is a graduate from the University of Colorado at Boulder.
Meanwhile, the driver of the London bus who swerved to avoid the woman who was pushed over has insisted he was 'just doing his job'.
Footage of the incident was released by Scotland Yard earlier this week, showing a man running over Putney Bridge and apparently knocking a woman into the path of an oncoming double-decker.
Bus operators Go Ahead London told 5 News: 'The driver commented that he is pleased to have been a hero, he was just doing his job. 'He is pleased to have been able to react the way he did and that there was no serious injury to the lady.'
Police said a 41-year-old man was arrested on suspicion of causing grievous bodily harm at an address in the Chelsea area of London yesterday morning following a public appeal.
He was taken to a south London police station and was released pending further enquiries, Metropolitan Police said.
Yesterday the Metropolitan Police said that officers had received a 'good response' after calling for information on the incident.
The bus stopped after the fall and passengers tended to the woman - who received minor injuries - following the incident during rush hour, at around 7.40am on May 5.