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Natural Stone Institute Members

Members of the Natural Stone Institute conform to a strict code of ethics.  The quality of their work meets Natural Stone Institute and other industry standards. They also have access to education about the latest technologies to ensure your project is completed efficiently.

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Accredited Companies

Companies who achieve Natural Stone Institute Accreditation have proven themselves best-in-class for fabrication and installation methods in their respective disciplines. They have been verified through a multi-step process which includes a thorough document review, written exam, and extensive on-site inspection.

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Certified CEU Speakers

CEU Certified companies provide continuing education credits about natural stone. These courses are approved to provide CEUs to architects, designers and other construction industry professionals through AIA, IDCEC, LACES, NKBA, and GBCI.

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Natural Stone Catalogue

This catalogue is a collection of images and material details to help you identify appropriate natural stone materials for your projects. Filter results based on stone type, color, product application, location and/or sustainability goals.

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