Some of the strong imagery and shapes we associate with as a company are:
1) Triangles
2) Mountains (triangle, powerful, unmoving, grounded)
3) Eagle with Fierce talons to both protect and defend.
4) Shield (protection, safety, power, authority)
5) Dome (archway, columns of support)
We are NOT looking for a logo with ALL these components, but play with some of them to strengthen the mark.