-- The Boros Legion (red/white)
-- The Golgari Swarm (green/black)
-- The Selesnya Conclave (green/white)
-- House Dimir (blue/black)
-- The Orzhov Syndicate (white/black)
-- The Izzet League (blue/red)
-- The Gruul Clans (red/green)
-- Azorius Senate (white/blue)
-- The Cult of Rakdos (black/red)
-- The Simic Combine (green/blue)
All but one of these are Azorious, one is Orzhov.