The Sondaterra is a company dedicated to provide equipment for use at agronomic field or laboratory. It was builded to enable farmers, extension workers and researchers to do a better collection of samples from the field. Besides the traditional soil sampler, has an extensive line of products ro irrigation management, understanding and meeting the diverse needs and requirements of technical equipment involved in farming. Comprised of professionals specializing in agriculture, the Sondaterra works with its customers and partners in the areas of agricultural production, enabling the best possible research necessary for the growth of agricultural production. Maintains a close relationship with universities, research institutions and extension, a relationship, even closer to the College of Agriculture "Luiz de Queiroz" - ESALQ - USP, due to its location coupled with the fact that the founders and members have taught at the university and graduated. Since 1990 Sondaterra has a history that blends with agronomic improvement of equipment for the sampling of soils and the mark of innovation in the industry. In compliance with numerous requests and needs of researchers and extension workers, and in order to meet the most diverse with agility requirements, implemented the latest technologies, increased and diversified their equipment, and sought to improve the quality of the materials used in manufacturing equipment marketed.