Toulouse have confirmed the signings of Joe Tekori, Jean-Pascal Barraque and Yacouba Camara for the 2013/14 season.
Samoa forward Tekori, who has been capped 25 times, will make the switch to the defending Top 14 champions from Castres.
Former France Under-20s international Barraque, who can cover at fly-half or centre, signs from Biarritz, while 18-year-old Yacouba Camara will make the step up from Pro D2 side Massy.
Toulouse are also in talks with Castres No 9 Rory Kockott about joining, however Jean-Baptiste Poux, Maxime Payen and Karl Chateau are set to leave.
Poux is poised to team up with Bordeaux, while recently-crowned ProD2 champions Oyonnax are leading the race for Payen and Chateau.