Good question. 14 according to: http://escalade9.wifeo.com/du-cote-des-filles.php It might depend on what actually counts as 9a though. None have climbed Action Directe. Josune Bereziartu was perhaps the first with Bang de Sang. Muriel Sarkany climbed Punt x at age 39. There are several others who are clearly capable but just haven't got round to it yet. I think some of the best are more focused on competitions. Janja Garnbret has flashed 2 8cs so I don't thing a 9a redpoint would be too much of a problem for her. I'd imagine that other top comp climbers like Jain Kim, Jesse Pilz, Magda Rock etc. would be be capable so there's probably a fair few more that the 14 listed operating at around the same very high standard.