According to the conditions of the streaming site, 55 per cent of ad revenue is kept by the content creator.
An investigation by The Times has revealed that this likely means Nassar has been provided a significant revenue.
The trusted flagger then sent a file of evidence pertaining to Williams to senior member of staff at You Tube in October — but the videos remained on the site.
Adverts for Ford, TSB, Netflix and Philips all appeared on content posted by Larry Nassar, a former US gymnastics team doctor who was sentenced to 60 years in prison for child pornography.
Other brands that features on Nassar's channel included New Statesman, Lavazza and the Olympic Channel.
Nassar is alleged to have abused his young victims while giving them massages and medical treatments — similar to those show in his You Tube videos.
'He needs to be behind bars so he will never prey upon another child.; Accusations against Nassar received extensive coverage after he was removed from his post in 2015.
But You Tube, which is owned by Google, has retained his channel and continued placing adverts in his videos.