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Machining and fabricating quartz in the Bay Area since 1973.

GM-Quartz Questions

The GM-Quartz annual revenue was $12.6 million in 2026.

Melanie Hartman is the CEO of GM-Quartz.

25 people are employed at GM-Quartz.

GM-Quartz is based in Oakland, California.

Top GM-Quartz Employees

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