MIA Accreditation


K.G. Stevens, Inc., has earned the coveted designation of Marble Institute of America (MIA) Accredited Natural Stone Fabricator and may now use the official accreditation logo.

For over 60 years the Marble Institute of America has been the world's leading information resource and advocate for the natural dimension stone industry. MIA members include marble, granite, limestone, sandstone, and other natural stone producers and quarriers, fabricators, installers, distributors, and contractors around the world.  The purpose of the MIA’s accreditation program is to provide excellence in the natural stone industry and recognize companies demonstrating compliance with quality standards, so that the public values, has access to, and benefits from consistent, competent, and safe fabrication, installation and maintenance of natural stone.


To become an Accredited Natural Stone Fabricator by the MIA, a company must successfully complete three phases of application. 

Phase One:  Completion of a lengthy application that requires the applicant company to provide various documents and references which ensure that the company is in compliance with the 10 standards of accreditation as laid out by the MIA Accreditation Commission.  

Phase Two:  Requires the company’s qualifying agent  to pass a 200 question multiple choice test.  The exam tests the applicant’s knowledge and application of material usage, installation, fabrication, restoration, care and maintenance, administration, legal/contracts, and jobsite and shop safety. 

Phase Three:  A comprehensive site visit, which includes a facility review, document review, and one or more installation site visits.  This is the final verification that all 10 standards of accreditation are met and includes passing a voluntary OSHA inspection and review.


Currently, over 40 Natural Stone Fabricators have achieved accreditation.  K.G. Stevens Inc. has the distinction of being
the only Wisconsin fabricator accredited by the MIA.

10 Standards of Accreditation

  • Established business entities with the fabrication and/or installation of natural stone as a primary business function.
  • Demonstrate sound business performance.
  • Operate ethically and in compliance with all applicable laws and regulations.
  • Ensure quality and safe fabrication and installation of their products and services.
  • Have financial resources sufficient to conduct stated business in a safe and effective manner.
  • Have competent human resources to conduct their stated business in a safe and effective manner.
  • Accurately represent the expertise, experience, credentials and services of their company and their employees to the public.
  • Maintain sufficient physical facilities, equipment and materials to achieve safe and effective operation of their stated business.
  • Demonstrate sound business and trade practices, including written contracts and comprehensive insurance policies.
  • Honor warranties and educate consumers with ongoing maintenance requirements.