It's Bluepoint Games!
Titanfall is being developed by Respawn Games on the Xbox One and PC. What we didn't know until today was who was developing Titanfall on the Xbox 360. Well now we know and it's Bluepoint Games! ... Who?
Their previous work includes God of War Collection, The Ico & Shadow of the Colossus Collection, Metal Gear Solid HD Collection, PlayStation All-Stars Battle Royale on the Vita, and the HD version of Flower on the PlayStation 4 and Vita.
So yeah, they're good at making ports. Neat.
@Vince Zampella [Twitter]