Thank you for your entries. I am very happy to see the direction in which you have taken this, and the effort behind your designs. I like #1 and #4 the best out of your work, as it is unique. I feel #3 gives it a sense of "formality" which we are not.
Our company is more like Karim Rashid or YOO, and hence need to create a powerful logo that can go on products or on buildings.