Israeli organized crime is no joke. In terms of operating it's definitely one of the most sophisticated forces of organized crime around. On the other hand it's also surprisingly violent since crime families in the country are involved in continuous seemingly unending and often deadly feuds.

In the Arab community the two feuds that have seen the most bodies drop are the Jarushi-Karaja feud (which are two Bedouin clans from Central Israel) and the Hariri-Bakri feud (which is based in the Palestinian area of Northern Israel). Both the Jarushi and the Hariri clans are regarded as two of the three most powerful Arab crime families. The other major Arab crime family is the Abu Latif clan, who have a complete stranglehold over organized crime in the Druze community in Northern Israel. The grip of Abu Latif on their community has been so formidable no other clan has gone against them.
Especially the Jarushi and Abu Latif clans have infiltrated politics as well as the military. All of them have international connections. Abu Latif have been arrested for transnational arms and narcotics trafficking linked with Lebanese clans that are connected to Hezbollah - which is a strange case seeing Abu Latif are a Druze clan, which are usually at odds with Hezbollah-connected Lebanese Shi'ite clans. The Jarushi and Hariri clans allegedly have influence over criminal elements in Arab/Palestinian diaspora communities.

The old school Jewish crime families - despite being the target of law enforcement for years - are still involved in high level criminal operations as well and - even moreso than the Arab crime families - have a wide international reach. Abergil, Abutbul, Amir Mulner, Domrani, Zaguri...have been detected in the USA, Mexico, South Africa, Belgium, the Netherlands, France, Romania and Hungary (where they have stakes in casino's) as well as Morocco (since basically all of these crime families have full or partial Moroccan Jewish origins).
Then you also have the Georgian-Israeli crime families in Nahariya (to which Michael Mor, whose full family name is Modzgrishvili, his organization is connected) and in Ashdod (to which Benny Shlomo's group was reportedly connected). The Georgian-Israeli crime clans are different entities from the Georgian mafia groups in Moscow, Tbilisi and Kutaisi, but they also have a presence in for instance NYC and Antwerp (where they're highly active in the diamond and jewelry business as well).