Soil Machine Dynamics Limited (SMD) is a manufacturer of remote intervention equipment. The company designs, develops, manufactures and markets work class and specialist subsea remotely operated vehicles (ROVs) and bespoke subsea trenching and mining equipment. SMD’s product portfolio includes work class ROV systems; trenchers; tractors; ploughs; launch and recovery systems; and curvetech components. The company also offers after sales and support services such as equipment installation, training equipment modification and upgrades and technical support. It serves clients in oil and gas, telecommunications, renewable energy, mining, scientific, salvage and offshore wind. The company has offices in the US and Singapore. It is a subsidiary of Zhuzhou CSR Times Electric Co., Ltd. SMD is headquartered in Tyne and Wear, England, the UK.