If you are looking for UAV operator and need them to carry liability insurance, be careful. There seems to be some confusion on what is needed and what is covered. We’ve run into operators that believe since they carry general liability insurance then their drone operations are also covered–this is frequently not the case.
Drone operations almost always need to be covered directly by either a specific rider or a custom, drone specific, policy.
HighGround Images carries a such a policy with $1,000,000 of commercial liability coverage for drone operations. Have your drone operator produce a Certificate of Liability Insurance and, if possible, have yourself or your company named as an additional insured.