ZCL | Xerxes is the largest manufacturer of underground fiberglass storage tanks in the world

Over 200,000 fiberglass storage tanks manufactured and shipped in North America

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Fiberglass Storage Solutions

Trust corrosion-resistant technology that is engineered to endure.

Tank Inventory

Fast-track your project lead times. Browse currently available inventory from our North American manufacturing locations.

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Be part of a sustainable legacy with North America’s leading fiberglass tank manufacturer

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Design your success with careers that break the mould.

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Global Leaders in Corrosion-Resistance

ZCL | Xerxes is a leading innovator in composite tank engineering, with nearly 40 years of industry experience. Our track record of approximately a quarter of a million installations stands as proof of the reliability and excellence of our products. ZCL | Xerxes tanks are structurally strong and made of 100% premium resin and glass (no fillers), making them completely corrosion-resistant, both inside and out.

Our dedication to delivering peace of mind to our customers through corrosion-resistant solutions that preserve and protect the environment makes ZCL | Xerxes the right environmental choice for safe, long term fluid containment.

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