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Our Valued Partners



Environmental Rating Agency

STERA is the only rating agency that exclusively focuses on rating suppliers based on their current environmental record and how they conduct due diligence of their extended supply chain. A free “App” is available for all suppliers to facilitate this.


Green Chain

Turn Your Supply-Chain Green

Green Chain is an organization that helps companies decarbonize their energy supply through the use of Guarantee of Origin (GO) certificates. These certificates are provided and audited by the Association of Issuing Bodies (AIB), which facilitates a forum for issuing bodies who administer a reliable system of internationally tradeable energy certificates.


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