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Superior GRounding Systems

P.O. Box 2171
Irwindale, CA 91706
Phone: 626-815-1946
Fax: 626-815-1936

SUPERIOR GROUNDING SYSTEMS?, INC. (SGS) specializes the engineering, manufacturing, installation, and testing of electrolytic systems for grounding and lightning protection. Headquartered in Irwindale, California; SGS services private businesses (large and small) as well as governmental (non-profit) agencies ranging from city, state, to federal levels.