I agree with Ariadne. NCCA accreditation is an important factor for me as well. I pulled up information from their website which reads:
“The National Commission for Certifying Agencies (NCCA) was created in 1987 by ICE to help ensure the health, welfare, and safety of the public through the accreditation of a variety of certification programs/organizations that assess professional competence. Certification programs that receive NCCA Accreditation demonstrate compliance with the NCCA’s Standards for the Accreditation of Certification Programs, which were the first standards for professional certification programs developed by the industry.
The NCCA standards require demonstration of a valid and reliable process for development, implementation, maintenance, and governance of certification programs. NCCA uses a rigorous peer review process to establish accreditation standards; evaluate compliance with the standards; recognize organizations/programs which demonstrate compliance; and serve as a resource on quality certification.Certification organizations that submit their programs for accreditation are evaluated based on the process and products, and not the content; therefore, the Standards are applicable to all professions and industries. Program content validity is demonstrated with a comprehensive job analysis conducted and analyzed by experts, with data gathered from stakeholders in the occupation or industry.
The NCCA Standards are comprehensive and cover all aspects of the certification program(s), including administration, assessment development and recertification. NCCA standards are consistent with The Standards for Educational and Psychological Testing (AERA, APA, & NCME, 1999) and are applicable to all professions and industries.
NCCA accredited programs certify individuals in a wide range of professions and occupations including nurses, automotive professionals, respiratory therapists, counselors, emergency technicians, crane operators and more. To date, NCCA has accredited approximately 300 programs from more than 120 organizations.”
To me, an organization that is subjecting itself to those standards shows a commitment to excellence and consistency in their certification programs.
That does not necessarily imply that an organization that is not NCCA-accredited is bad or deficient. I am pretty sure that the accreditation process itself is laborious and may be difficult to meet for a small company.