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GRI Standards in Practice: How to Report What Matters

Aparna Vinod | September 11, 2025

The Global Reporting Initiative (GRI) Standards are the world's most widely used framework for sustainability reporting. Used by thousands of organizations globally, GRI provides a comprehensive structure for reporting environmental, social, and governance impacts. This guide helps you understand how to implement GRI Standards effectively, especially as an SME.

What Are GRI Standards?

GRI Standards are not a prescriptive list of what you must report. Instead, they provide a framework for:

  • Deciding what to report: Using materiality assessment to identify topics that matter most to your business and stakeholders
  • How to measure: Providing standardized metrics and calculation methodologies
  • How to disclose: Setting expectations for transparency, comparability, and completeness

The key principle: You don't report everything—you report what matters most. This is determined through a process called materiality assessment.

Understanding GRI Structure

GRI Standards are organized into three layers:

Universal Standards

GRI 1: Foundation - Reporting principles

GRI 2: General Disclosures - About your organization

GRI 3: Material Topics - Materiality process

Sector Standards

GRI 11: Oil and Gas

GRI 12: Coal

GRI 13: Agriculture

GRI 14: Mining (+ more coming)

Topic Standards

200 series: Economic topics

300 series: Environmental topics

400 series: Social topics

Key Topic Standards Explained

Economic Topics (200 Series)

  • GRI 201: Economic Performance
  • GRI 202: Market Presence
  • GRI 203: Indirect Economic Impacts
  • GRI 204: Procurement Practices
  • GRI 205: Anti-corruption
  • GRI 206: Anti-competitive Behavior

Environmental Topics (300 Series)

  • GRI 301: Materials
  • GRI 302: Energy
  • GRI 303: Water and Effluents
  • GRI 304: Biodiversity
  • GRI 305: Emissions
  • GRI 306: Waste
  • GRI 308: Supplier Environmental Assessment

Social Topics (400 Series)

  • GRI 401: Employment
  • GRI 402: Labor/Management Relations
  • GRI 403: Occupational Health and Safety
  • GRI 404: Training and Education
  • GRI 405: Diversity and Equal Opportunity
  • GRI 406: Non-discrimination
  • GRI 413: Local Communities
  • GRI 414: Supplier Social Assessment
  • GRI 416: Customer Health and Safety

The GRI Content Index: Your Roadmap

Every GRI report must include a GRI Content Index—a table that maps where each disclosure appears in your report. This serves as a navigation tool for readers and ensures completeness.

Example Content Index Entry

Disclosure Location Omission
GRI 305-1: Direct (Scope 1) GHG emissions Page 24-25 -
GRI 305-2: Energy indirect (Scope 2) GHG emissions Page 25 -
GRI 305-3: Other indirect (Scope 3) GHG emissions - Not yet available

Why GRI Matters for Your Business

Adopting GRI Standards delivers concrete benefits:

Sales and Onboarding

Many large corporations now require GRI-aligned reporting from suppliers. Having a GRI report can be the difference between winning and losing a major contract.

Financing and Insurance

Banks and insurers increasingly use GRI-aligned data to assess risk. Transparent reporting can improve your access to capital and insurance terms.

Talent Attraction

Younger workers prioritize sustainability. A credible GRI report demonstrates commitment and helps attract top talent.

Reputation Management

Proactive, transparent reporting builds trust with customers, investors, and communities—before issues arise.

The Seven-Step GRI Reporting Process

Implementing GRI Standards follows a systematic approach:

1
Understand Context

Map your value chain, identify stakeholders, and understand your sustainability context.

2
Identify Material Topics

Conduct materiality assessment through stakeholder engagement and impact analysis per GRI 3.

3
Select Disclosures

Choose Topic Standards (200s, 300s, 400s) that align with your material topics.

4
Collect Data

Gather quantitative and qualitative data for each selected disclosure using GRI methodologies.

5
Prepare Report

Draft your report covering GRI 2 (General Disclosures), GRI 3 (Material Topics), and selected Topic Standards.

6
Create Content Index

Build a comprehensive GRI Content Index mapping all disclosures to report locations.

7
Review and Publish

Consider external assurance, finalize the report, and publish through appropriate channels.

SME-Lite Approach to GRI

SMEs often feel overwhelmed by GRI's comprehensiveness. Here's a practical, lighter approach:

Simplified GRI for SMEs

  1. Start with GRI 2 (General Disclosures): Provide basic organizational information—who you are, what you do, your governance structure.
  2. Conduct Simple Materiality: Use stakeholder surveys and internal workshops to identify 3-5 material topics per GRI 3 guidance.
  3. Report on 3-5 Topic Standards: Choose the most relevant Topic Standards (e.g., GRI 302 Energy, GRI 305 Emissions, GRI 401 Employment). You don't need to report everything.
  4. Create a Simple Content Index: Even a one-page table mapping your key disclosures meets GRI requirements.
  5. Commit to Annual Updates: Start small, improve each year. GRI reporting is a journey, not a destination.

Year 1: Foundation

  • Complete GRI 2
  • Identify material topics
  • Report on 2-3 Topic Standards
  • Basic Content Index

Year 2-3: Expansion

  • Add 2-3 more Topic Standards
  • Improve data quality
  • Enhance narrative sections
  • Consider external assurance

Common GRI Reporting Mistakes to Avoid

  • Trying to Report Everything: Focus on material topics. Quality over quantity.
  • Skipping Materiality: Materiality assessment per GRI 3 is not optional—it's the foundation of your report.
  • Poor Data Collection Systems: Invest in data management infrastructure early. Manual data collection doesn't scale.
  • Ignoring the Content Index: The Content Index is mandatory. It's how stakeholders navigate your report.
  • Glossing Over Negative Impacts: GRI requires balanced reporting. Don't hide challenges—explain how you're addressing them.
  • Not Engaging Stakeholders: GRI emphasizes stakeholder engagement throughout the process, not just at the end.

Ready to Start Your GRI Reporting Journey?

We help SMEs develop GRI-aligned sustainability reports, from materiality assessment through data collection to final publication. Start with our ESG assessment to identify your material topics and build a foundation for GRI reporting.

Get ESG Assessment
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