GreenSuppliers

ESG Scoring Methodology

Our scoring system is transparent, rules-based, and recalculated automatically. Every supplier is measured against the same criteria.

How ESG Scoring Works

Every supplier on Green Suppliers is assessed across multiple sustainability dimensions. The ESG score is a composite measure that factors in certifications, energy sourcing, waste management, and reporting practices.

Scores are recalculated nightlyand whenever a supplier's certification status changes (e.g., a new certification is uploaded or an existing one expires). This ensures scores always reflect the latest data.

The resulting score places each supplier into one of four tiers: Bronze, Silver, Gold, or Platinum. The tier requirements are published openly so suppliers know exactly what they need to achieve the next level.

What We Measure

Six key dimensions make up the ESG assessment

Renewable Energy Usage

Weight: High

Percentage of energy sourced from renewable sources. Higher usage leads to a higher score and unlocks Silver tier and above.

Waste Recycling Rate

Weight: High

Percentage of waste that is recycled or diverted from landfill. Required at 70%+ for Platinum tier.

Carbon Reporting

Weight: Medium

Whether the supplier actively tracks and reports carbon emissions. Required for Gold and Platinum tiers.

Certifications

Weight: High

Number of valid, non-expired certifications (ISO 14001, B-Corp, FSC, GBCSA, etc.). More certifications unlock higher tiers.

Water Management

Weight: Low

Active water conservation, recycling, or treatment programmes. A positive indicator in the overall ESG assessment.

Sustainable Packaging

Weight: Low

Use of biodegradable, recyclable, or sustainably sourced packaging materials. A positive indicator in the overall assessment.

Tier Requirements

Bronze

  • All required company fields filled

Silver

  • At least 1 valid (non-expired) certification
  • Renewable energy usage >= 20%

Gold

  • At least 2 valid certifications
  • Renewable energy usage >= 50%
  • Carbon reporting: Yes

Platinum

  • At least 3 valid certifications
  • Renewable energy usage >= 70%
  • Waste recycling >= 70%
  • Carbon reporting: Yes

See ESG scores in action

Browse our directory and compare supplier ESG scores side by side.

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