These designs are awesome. Since our business is oil & gas and we do drilling, there are opportunities within the designs to show a sense of Topography -- such as a gradation depicting layers beneath the earth . So an alternate "earthly" look would be interesting to see.
You clearly have an incredible design sense and have captured our attention here. The one showing as ranked 3rd is really cool. We are still weighing in on the "Check mark" concept. What I like about this design is the clarity you bring to the words -- good continuity on the fonts.
We want to communicate to our target audience we use only Valid sources of energy - we don't do risky ventures, we are seeing that creative use of the Checkmark within the V is working.
Your use of the ball showing the V within it is good.
This is a fierce competition! Lets keep it coming!