From what I can find this is roughly where we stand with who is who and the possible key players.

Gambino Crime Family

• Official Boss: Domenico "Italian Dom" Cefalù
• Street Boss: Lorenzo Mannino
• Underboss: Unknown
• Consigliere: Lorenzo Mannino
• New Jersey Faction Boss: Nicholas "Nicky Mita" Mitarotonda
• Estimated Membership: About 180 Made Members

Genovese Crime Family

• Official Boss: Liborio S. "Barney" Bellomo
• Street Boss: Michael "Mickey" Ragusa
• Underboss: Ernest "Ernie" Muscarella
• Consigliere: Unknown
• New Jersey Faction Boss: Unknown
• Estimated Membership: About 200 Made Members

Bonanno Crime Family

• Official Boss: Michael "Mickey Nose/The Nose" Mancuso (Under Indictment, Out on Bail)
• Acting Boss: John “Johnny P/Johnny Skyway” Palazzolo
• Underboss: Unknown
• Consigliere: Unknown
• New Jersey Faction Boss: Joseph "Sammy/Sammo" Sammartino Sr.
• Estimated membership: About 110 Made Members

Lucchese Crime Family

• Official Boss: Vittorio "Vic/Little Vic/Vic the Terminator" Amuso (Life Imprisonment)
• Acting Boss: Michael "Big Mike" DeSantis
• Underboss: Patrick "Patty Red" Dellorusso
• Consigliere: Andrew DeSimone
• New Jersey Faction Boss: George "Georgie Neck" Zappola
• Acting New Jersey Faction Boss: Joseph "Big Joe" Perna
• Estimated Membership: About 100 Made Members

Colombo Crime Family

• Official Boss: Unknown
• Underboss: Benjamin "The Little Guy/The Claw/Benji" Castellazzo (Under Indictment, Out on Bail)
• Consigliere: Ralph DiMatteo (Under Indictment, Out on Bail)
• Acting Consigliere: Thomas "Tom Mix/Mr. T" Farese (Under Indictment, Out on Bail)
• Estimated Membership: About 90 Made Members