Partial list of Gedolei Yisroel Shlita who are personally raising funds and are involved in the Pidyun Shvuyim rescue efforts:
Rav Ahron Schecter, Rosh Yeshiva Chaim Berlin
Satmar Rebbe
Rav Malkiel Kotler, Rosh Yeshiva Lakewood
Novominsker Rebbe
Rav Osher Kamlmanowitz, Rosh Yeshiva Mir
etc. etc. etc.