eHaO is an independent consulting and engineering company with headquarters in the city of Dresden Germany. Offices throughout Germany guarantee that we are always near to our clients. Furthermore, we are active nationally & internationally and have Partner offices in serveral countries in Middle East at our disposal.eHaO Consultancy Within Environment Technology are solely committed to sustainability to growth, to getting new things off the ground, things that both man and nature will benefit from. We look at things from a broader perspective, when we look at innovations, evaluate market needs and opportunities for integrated solutions.