Being of this guild, we are the Sith, and as such, we must understand and know our methods and inner-workings of our grand Sith. Listed below are the titles there are in the Sith order, in order of most importance, and various sects, organizations, languages, past and present, etc.

Title of leader:
Dark Lord of the Sith

Governing body:
Sith Council

Other positions:
Sith Master
Sith Lord
Sith apprentice(Shadow Hand)
Sith Marauder
Sith Acolyte
Sith Assassin
Sith Spy
Hands
Fist

Organizations:
True Sith
Brotherhood of the Sith
Sith Triumvirate
Brotherhood of Darkness
Order of the Sith Lords
Lumiya's Sith
One Sith

Sects:
Naddists
Krath
Mecrosa Order
Dark Force
Disciples of Ragnos
Lost Tribe of Sith
Malevolence

Headquarters:
Korriban
Coruscant
Ziost

Official language(s):
Sith Galactic Basic Standard

Affiliated organizations/governments:
Adas's Sith Empire
Old Sith Empire
Exar Kun's Sith Empire
Revan's Sith Empire
New Sith Empire
Trade Federation
Confederacy of Independent Systems
Galactic Empire
Imperial Remnant
Galactic Federation of Free Alliances
Fel Empire
Darth Krayt's Sith Empire