Most organizations talk about sustainable procurement. Far fewer can actually prove it. There is a significant difference between having a sustainability policy in your procurement manual and having an independently verified framework that buyers, investors, and regulators can genuinely trust.
ISO 20400 is the international standard that gives organizations a globally recognized framework for integrating environmental, social, and economic sustainability into every stage of the procurement process. An independent assessment against ISO 20400 is how you demonstrate that your procurement practices are not just well-intentioned but independently verified and credibly documented.
We conduct independent assessments of organizational procurement frameworks against ISO 20400:2017 principles and guidance. We do not implement procurement systems or provide consultancy. We assess and verify, giving your organization the impartial third-party evidence of sustainable procurement maturity that stakeholders genuinely trust.
ISO 20400:2017 is the first international standard dedicated entirely to sustainable procurement. Published by the International Organization for Standardization, it provides comprehensive guidance for integrating sustainability considerations covering environmental, social, and economic dimensions into organizational procurement policies, strategies, and day-to-day purchasing decisions.
Unlike most ISO management system standards, ISO 20400 is a guidance document rather than a requirements-based standard. Formal third-party certification in the traditional sense is not available. However, organizations can seek independent assessment and verification of how comprehensively ISO 20400 principles have been embedded across their procurement function, providing the documented, credible evidence that investors, regulators, and major buyers increasingly require.
ISO 20400 is built on seven core principles derived from ISO 26000, the international standard for social responsibility. Together, they ensure your procurement function addresses sustainability at every level, from supplier selection to contract management.
Organizational Governance
Human Rights embeds sustainability into leadership decisions, procurement policies, and organizational strategy.
Labour Practices ensure fair wages, safe working conditions, and workers' rights throughout production and supply.
The Environment evaluates environmental impact across the full product lifecycle, including carbon footprint, waste, and biodiversity.
Fair Operating Practices promotes ethical business conduct, anti-corruption measures, and fair treatment of suppliers.
Consumer Issues ensures product safety, transparency, and respect for health and data privacy.
Community Involvement supports local economies and responsible sourcing choices that strengthen communities.
ISO 20400 is designed to work alongside and strengthen the other ISO management system standards your organization may already hold. ISO 14001 addresses your internal environmental performance, but ISO 20400 extends those environmental commitments into your supply chain through procurement requirements and supplier contracts. ISO 50001 optimizes your internal energy use, but ISO 20400 helps you prioritize lower carbon suppliers, reducing your Scope 3 emissions. ISO 9001 ensures product quality and consistency, but ISO 20400 integrates ethical and environmental criteria into your quality assessment of suppliers.
Without a sustainable procurement framework, your other certifications carry a blind spot. ISO 20400 closes that gap by ensuring that the high standards you set for your own operations are matched by the partners and suppliers you work with.
Assessment cost varies depending on the size of your organization, the complexity of your supply chain, the number of procurement categories within scope, and the maturity of your existing sustainable procurement practices. Investment typically covers scoping, documentation review, on-site assessment activities, and formal report delivery. Contact our team for a tailored assessment proposal.
Scoping and Documentation Review You submit your sustainable procurement policy, supplier code of conduct, procurement procedures, supplier evaluation criteria, and existing sustainability reporting. We review these against ISO 20400:2017 principles to establish your current alignment level.
On-Site Assessment Our qualified assessors independently evaluate how ISO 20400 principles are embedded across your procurement governance, supplier selection processes, contract management practices, and performance monitoring systems.
Assessment Report We identify areas of strong alignment and areas where sustainable procurement practices require strengthening. A formal report documents all findings with clear, actionable observations referenced to ISO 20400:2017.
Verification Statement Where your organization demonstrates comprehensive alignment with ISO 20400:2017 guidance, we issue a formal verification statement for use in ESG reporting, investor disclosures, and stakeholder communications.
Your procurement decisions have consequences that reach far beyond your own four walls. Every supplier you choose, every contract you award, and every purchasing decision your team makes carries environmental, social, and economic impact. ISO 20400 gives you the framework to manage that impact systematically and verifiably.
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