The number of valid certificates to five ISO management system standards, reported by country in the 2024 ISO Survey.
Valid certificates as at 31 December 2024. Source: The ISO Survey of Management System Standard Certifications, ISO and the International Accreditation Forum. Participation by certification bodies is voluntary and varies between years, so country-level changes may reflect reporting coverage rather than genuine shifts in certification. The survey is not a register of certificates.
ISO 9001 — Quality management systems. The oldest and by far the most widely held, with 1.47 million valid certificates.
ISO 14001 — Environmental management systems. Requires an organisation to identify its environmental aspects, set objectives, and operate a Plan-Do-Check-Act cycle against them. 676,000 certificates.
ISO 45001 — Occupational health and safety. Replaced OHSAS 18001 in 2018. 543,000 certificates.
ISO 22000 — Food safety management, built around HACCP principles. 60,000 certificates.
ISO 50001 — Energy management systems. The newest of the five and the least widely adopted, at 38,000 certificates, though the most directly relevant to decarbonisation.
ISO states plainly that the Survey is not a database, and the caution is warranted.
Participation is voluntary. Certification bodies choose whether to report. When a major body withholds data, a country’s figures can collapse without anything changing on the ground. China’s absence from the 2023 survey caused reported ISO 9001 certificates to fall from 530,904 to 130,402.
A certificate is not an outcome. This is the central problem for research. Certification records that an organisation has a management system meeting the standard. It does not record whether emissions fell, whether waste declined, or whether the system is operated substantively rather than for the audit.
Counts favour large economies. Absolute numbers track industrial base as much as environmental commitment.
The gap between certification and outcome is a recurring theme in my work: