Soil Mechanics and Technical Laboratory Company is one of the companies under the Ministry of Roads and Urban Development, which has more than 40 years of experience in the form of 31 provincial general offices, 145 laboratory branches in large cities, 900 established local units, 40 geotechnical research teams. and participation in studies and quality control of large and small dams; With the presence of more than 2500 skilled, experienced technical and engineering personnel, it provides a wide range of services in construction projects. 

Mazandaran laboratory also has 10 branches and more than 30 local units in the province  .