[SES is your single source solution provider for all your grounding / earthing, lightning, electromagnetic interference and EMC analysis and mitigation problems. - SES & technologies ltd. SES (SESTech) is your single source solution provider for all your grounding, earthing, lightning, electromagnetic interference and EMC analysis and mitigation problems. CDEGS Engineering Software: Current Distribution, Electromagnetic Interference, Grounding and Soil Structure Analysis, Earthing Software]