"The fact that we put Olympic semifinalist Jelena Dokic on our waiting list says a lot about the quality of our draw," said Alexei Selivanenko, director of the women's Kremlin Cup.
The tournament, which begins next Monday, offers prize money of $2.15 million.
Just a few weeks ago, however, it was in danger of folding as organisers furiously tried to find more than $1 million in prize money.
"Now we can say for certain that the tournament will go ahead as planned," Kremlin Cup chief Shamil Tarpishchev said.
"But as for the future of this event, we must have a change in our tax laws to make it possible and profitable for private companies to sponsor professional sports in Russia."
Two home favourites, U.S. Open champion Marat Safin and Olympic gold medallist Yevgeny Kafelnikov, head the men's draw.
Safin, currently second in the ATP Tour Champions' Race, is looking for a good result at home to wrest the number one spot from Brazilian Gustavo Kuerten.
On the women's side, other top players include Russia's Anna Kournikova and Olympic finalist Elena Dementieva as well as defending champion Nathalie Tauziat of France.