Harris, who is a United fan, is known as “Mr Fixit” after helping with the takeovers of Premier League clubs such as Chelsea and West Ham.
Harris has revealed that members of the Manchester United Supporters Trust went to him and asked for help to turn around the club.
“Yes, we have been approached,” Harris said.
“We can lend our weight to doing something for the good of United and for the good of football – none of the takeovers that I have been involved in have involved any debt.
“They’ve been takeovers by people who’ve wanted to be involved for reasons other than money.”
The Seymour Pierce investment bank chief executive has identified the people who have approached him as “The Red Knights”.
“A number of people have been to see me and I’ve had long chats with them,” he said.
“I know there are one or two people in senior positions in the financial services that have access to the capital.
“We don’t know if the Glazers can be made to listen, but there is serious intent on the part of people who have support in their hearts. The time feels right.”
“(The Glazers) are playing with an icon of football, one of the most respected brands in the world, and it is in danger,” he added.
“Seventy five pence of every pound (fans) are spending is now going to the Galzers either for themselves or to pay debts.”
