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Founded by California registered professional engineer Gregory Steiger, ZSI Incorporated has earned a reputation of accomplishing what it's competitors couldn't do themselves - making their systems work properly as intended.


We are an organization dedicated to excellence through innovation, in automation, process control, instrumentation and plant SCADA & PLC systems. Our mission is to be your preferred water and wastewater control systems consultant who is fully capable of furnishing turn-key services including strategy development, electrical and control design, system integration and electrical & instrumentation construction. We are proactive in combining leading edge technology with great service,  and our business is totally focused on creating cost effective solutions for our customers.


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