About SIS Certifications Pvt. Ltd. SIS Certifications Pvt. Ltd. Support your organization to achieve ISO Certification in Nigeria . SIS Cert have successfully certify over 10000+ projects in over 35+ countries. Our team and auditors deliver certification, with simple documentation and minimal efforts to make the whole process simpler, faster and affordable. We offer ISO 9001, ISO 14001, OHSAS 18001, ISO 22000, ISO 37001. ISO 45001. ISO 27001 Certification and many more ISO Standard according to customer domain. We are best ISO Certification body in Nigeria . What is ISO Certification? ISO certification certifies that a management-system, manufacturing-process, administration, or documentation-procedure has all the prerequisites for standardization and quality-assurance. ISO (International Organization for Standardization) is an autonomous, non-administrative, worldwide association that creates standards to standards the quality, security, and proficiency of standards, ...