TDS Ltd is a consulting engineering practice offering support to the process industries in matters of control, measurement & protection: - development/troubleshooting of control systems/strategies - implementation of IEC61508/61511 (SIL), DSEAR/ATEX - development of engineering management policy/procedures - auditing of fiscal measurement systems - training on control/measurement/protection systems Clients include: Shell UK E.On Esso Innospec Basell Sellafield