Obtaining ISO 22000 consultant services involves finding a reputable consultancy or consultant with expertise in food safety management systems and ISO 22000 standards. Verify the credentials and certifications of the consultants or ISO consultancy firms you're considering. Look for ISO 22000 Lead Auditor or Lead Implementer certifications, as well as relevant experience in food safety management. Contact these references to inquire about their experiences working with the consultant and the outcomes achieved.