As far as I know, the Ḥabbad are the only actively “proselytising” ḥashŭdĭm; but I couldn’t say for sure because I don’t mix with ḥashŭdĭm.

http://mordochai.tripod.com - פרופ' מָרְדֳּכַי בֶּן-צִיּוֹן, יְרוּשָׁלַיִם, אֶרֶץ יִשְׂרָאֵל