The ISO Survey 2025 reports more than 3.28 million valid accredited management system certificates and more than 5.25 million associated sites as at 31 December 2025. The survey counts certificates issued by certification bodies accredited by signatories to the Global ACI Multilateral Recognition Arrangement.
ISO 9001 remains the largest standard in terms of the number of certificates, with 1,611,729 valid certificates and 2,419,972 sites. ISO 14001 follows with 739,390 certificates and 1,246,566 sites. For ISO 45001, the survey lists 599,532 certificates and 1,011,191 sites.
The 2025 edition also includes ISO/IEC 42001 and ISO 37301 for the first time. According to Global ACI, the data provide insight into the use of management system standards, the distribution of certification activities and the development of demand for accredited conformity assessment. The survey is intended to serve as a shared data basis for, among others, standards developers, accreditation and certification bodies, regulators and industry.
