From the picture this looks to be a HappyFloors Tile called Vega Black. We have a similar floor in the front of our showroom called Kaleido Nero, also from HappyFloors. Our installer said it was one of the best floor tiles he has ever worked with. Very good prices on this brand too!
You can view their entire product line here,
but I'd recommend finding a local tile store to work with instead of a an online only place.