Earthcom ground testing is one of the offered services. The purpose of ground testing is to determine the effectiveness of the grounding system. Most electrical systems rely on the earth to carry the return path for fault currents, and for safety, all the electrical equipment is connected to a common ground.
Most of the time the limiting factor in grounding is how good the grounding electrodes make contact with the earth, which is also known as the soil/ground interface. This component is measured by the ground test. Generally speaking, the lower the ground resistance, the safer the system.