Newcastle, who prop up the Premiership with two wins from 16 league games, have been looking for new investment since November with owner Semore Kurdi wanting out.
An article linked, external the north-east club with interest from energy drink giant Red Bull, the company which has a strong sports portfolio in football and Formula 1 amongst others already.
Diamond said he has heard nothing about this, but he is more optimistic about the future.
He also cited the report , externalwhich showed that a more youthful audience was being attracted to Premiership rugby as another way of bringing in much-needed new money.
“I have nothing to say about Red Bull,” Diamond added.
“But big multi-national companies would look to invest in what they see is a growing sport.
“We’ve got 15 British and Irish Lions coming out of the Premiership. The league is looking good, we just need the right sort of investors.
“One of the interesting stats for me that came out was an increase in people between 18 to 34 watching rugby.
“I’m pretty sure for a company like Red Bull or something similar, that is the demographic they are targeting.”
