The MICB publishes it’s tax returns publicly, every year.
The MICB is not only a non-profit organization but has been awarded Federal Tax Exemption every year for the past decade: http://certifiedmasterinspector.org/wp-content/uploads/sites/24/2017/01/Master-Inspector-Certification-Board-Tax-Exempt.pdf
More about the Master Inspector Certification Board: www.certifiedmasterinspector.org
And Certified Master Inspector® is a Federal Certification Mark on the Principal Register: http://certifiedmasterinspector.org/registered-trademark/