The Natural Stone Institute (NSI) is nearing 20 years of its accreditation program, which helps stone fabrication and installation companies demonstrate their commitment to safety, quality, and professionalism.
The Natural Stone Institute Accreditation Program was developed to evaluate fabrication and installation companies across key areas, including compliance with OSHA regulations, quality control procedures, sound business practices, expertise and capabilities, and customer service track record. Through the program, companies undergo a thorough review of their operations, processes, and abilities to ensure they exceed established industry standards.
“In the first few months after gaining accreditation, we saw more second looks on our estimates and a much-needed uptick in commercial opportunities for natural stone.”
Eric Vlaanderen, Legacy Counters
Today, the program includes 98 accredited fabricators and 23 accredited commercial installers, providing strong national coverage. For commercial contractors, this means critical mass is available across the United States, with multiple accredited companies represented in each region. This presence helps support project teams in maintaining specifications through bidding and final contractor selection.
The value of accreditation is also recognized at the specification level. Currently, 1,457 commercial project specifications include requirements for Natural Stone Institute Accreditation, reinforcing its role as a trusted standard across the design and construction community.
As the industry focuses on silica safety and regulatory compliance continues to increase, NSI welcomes new companies to join its Accreditation Program. Accredited companies can move forward with confidence, knowing they are aligned with rigorous safety expectations and best practices. The program provides comprehensive guidance and review processes that support proper silica control measures, helping protect employees and ensure compliance with evolving regulations.
For more information about the Natural Stone Institute Accreditation Program, visit www.naturalstoneinstitute.org/accreditation.
About the Natural Stone Institute
The Natural Stone Institute (NSI) is a trade association representing more than 2,100 members in over 50 nations in virtually every aspect of the global natural stone industry. NSI is dedicated to increasing awareness of natural stone as one of nature’s most enduring, inspiring, and sustainable building materials. NSI offers opportunities for professionals of all fields, backgrounds, and career levels to connect on natural stone industry challenges, meet potential business partners, and grow their expertise and influence.
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