The letter said the election results displayed "almost complete disregard, even contempt" for the International Olympic Committee's broadcasters and sponsors.
"There's a lot of sponsors that have hundreds of millions of dollars invested in this. They better find out pretty quickly what the IOC is going to do," Pound said at an athletes forum at the Canada Summer Games.
When asked how he responds to those who say the letter was just sour grapes about the election, which was won by Belgium's Jacques Rogge, Pound said that was not the case.
"I think that tells you more about them than about me," said Pound, who finished third in the voting in the July 16 election. "People who've known me all this time, know that I've never done anything other than in the best interest of the Olympic movement and this letter was continuing that relationship."
Pound said that the recipients of the two-page letter, which was dated July 24, seemed grateful for his honesty.
"I think the response from sponsors has been terrific," he said. "They are very pleased that somebody continues to look out for their interests and continues to press for a commitment by the IOC to the reforms that we announced in 1999."
A letter Dick Pound wrote to key Olympic broadcasters and sponsors shortly after his loss in the IOC presidential election was not sour grapes, the Montreal lawyer said Tuesday.
