KONAMI Pre-E3 SHOW 2013
They talked about:
Konami - How they are expanding the company.
Pro Evolution Soccer - On how they are using the Fox engine.
MGSV The Phantom Pain - Who will play as Big Boss.
Castlevania Lord of Shadows 2 - When the story takes place and they showed a new long trailer of the game.
Nintendo Direct 2/14/2013
Nintendo didn't have a E3 conference, instead they did this video back in February.
Gamespot E3 Preview
Microsoft E3 2013 Conference
EA Press Conference E3 2013
It starts at 0:25:00
Ubisoft Press Conference E3 2013
It starts at 0:09:40
Sony Press Conference E3 2013