Earth Data is regarded as a leading geological consultancy firm with offices in Thornton and Brisbane. We are a successful, e ... nergetic and expanding business. Our commitment to being the first choice for top mining and coal seam gas companies in Australia has ensured our significant company growth. We currently employ approximately 70 staff and have been in business for over 20 years. Our clients include companies such as Xstrata, AGL, Eastern Star Gas, Arrow Energy, QGC and many more. We work in a variety of locations, including coal exploration within the Hunter Valley, and Coal Seam Gas (CSG) exploration in Southeast Queensland. read more