What is Sustainability Reporting?

In this article, we break down what sustainability reporting involves, what a sustainability report typically looks like, and how organisations use these tools to enhance transparency, align with stakeholder expectations, and support long-term success.

Sustainability reporting
Published: May 21, 2025 Written by: Bethany

As environmental and social issues rise to the forefront of global concern, companies are under increasing pressure to demonstrate how they operate responsibly. Sustainability reporting has become a vital mechanism for businesses to communicate their environmental, social, and governance (ESG) impacts. But what is sustainability reporting exactly, and why does it matter?

In this article, we break down what sustainability reporting involves, what a sustainability report typically looks like, and how organisations use these tools to enhance transparency, align with stakeholder expectations, and support long-term success.

 

What is Sustainability Reporting?

Sustainability reporting is the process by which an organisation publicly discloses information about its ESG performance. This includes metrics and narratives related to energy use, emissions, water consumption, labor practices, community engagement, corporate governance, and more. The goal is to provide stakeholders with a clear view of how a business impacts people and the planet while also outlining steps taken to mitigate negative effects.

Unlike financial reporting, which focuses purely on monetary performance, sustainability reporting captures a broader picture of a company’s operations. It enables businesses to show accountability beyond profit margins and demonstrate their commitment to sustainable development goals.

Importantly, sustainability reporting is not merely a compliance exercise—it is a strategic communication tool. It allows companies to highlight progress, acknowledge challenges, and articulate their roadmap for continuous improvement. In doing so, it strengthens relationships with stakeholders who are increasingly demanding transparency on ESG issues.

 

What is a Sustainability Report?

A sustainability report is the physical or digital document that encapsulates the data, narratives, and strategic commitments resulting from sustainability reporting. It is often published annually and can be a standalone document or integrated with a company’s annual report.

 

Typically, a sustainability report includes:

  • An overview of the company’s sustainability strategy and goals
  • Performance metrics across key ESG indicators
  • Descriptions of policies and initiatives
  • Stakeholder engagement summaries
  • Information on reporting frameworks and methodologies used

 

Beyond this, some reports also provide:

  • Progress toward science-based targets
  • Case studies or in-depth features on flagship initiatives
  • Details about ESG governance structures
  • Third-party assurance statements to verify credibility

A well-prepared sustainability report provides both quantitative data and qualitative context. It is designed to be understandable by a wide range of stakeholders, including investors, employees, regulators, NGOs, and customers.

 

Why Sustainability Reporting Matters

Sustainability reporting serves multiple important functions:

  • Transparency and Accountability: It allows companies to demonstrate their values and operational impact openly. By regularly disclosing ESG data, businesses build trust with stakeholders.
  • Risk Management: ESG risks such as climate change, labor disputes, and supply chain vulnerabilities can affect long-term business performance. Reporting helps companies identify and address these risks proactively.
  • Stakeholder Engagement: Customers, employees, and investors increasingly want to align with responsible companies. Sustainability reporting provides a mechanism for engaging with these groups based on shared values.
  • Regulatory Compliance: In some jurisdictions, sustainability reporting is becoming a legal requirement. Early adoption ensures readiness and reduces compliance risks.
  • Strategic Decision-Making: The process of gathering and analysing ESG data can inform corporate strategy, leading to more resilient and forward-thinking business models.

 

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Common Frameworks and Standards

Given the growing importance of sustainability reporting, several frameworks have been developed to standardise the process and improve comparability across organisations. Common frameworks include:

  • Global Reporting Initiative (GRI): The most widely used standard, focusing on a broad set of ESG issues relevant to all sectors.
  • Sustainability Accounting Standards Board (SASB): Provides industry-specific standards to help companies disclose financially material sustainability information.
  • International Sustainability Standards Board (ISSB): A newer initiative aiming to unify global reporting standards and improve consistency.
  • EcoVadis: Offers a comprehensive sustainability ratings platform that assesses suppliers across key themes.

These frameworks offer structure and credibility to reports, making it easier for stakeholders to compare performance and evaluate claims.

 

Voluntary vs. Mandatory Reporting

Historically, sustainability reporting has been voluntary, driven by stakeholder pressure rather than regulation. However, the landscape is shifting. The European Union’s Corporate Sustainability Reporting Directive (CSRD), for example, mandates sustainability reporting for thousands of large companies. Similar regulations are emerging in other regions, including proposals from the U.S. Securities and Exchange Commission (SEC) and the UK’s Financial Conduct Authority (FCA).

Mandatory reporting ensures a level playing field and reduces the risk of greenwashing, but it also raises the bar for accuracy, scope, and third-party verification.

 

Examples of Sustainability Reports

Many leading companies have set the benchmark for effective sustainability reporting:

Unilever

unilever.com/sustainability

Showcases progress across multiple ESG areas and links performance to long-term strategy.

 

Patagonia

patagonia.com/our-footprint

Publishes detailed impact assessments and policy initiatives, and advocates for systemic change.

 

Microsoft

microsoft.com/en-us/corporate-responsibility/sustainability/report

Combines ambitious climate goals with comprehensive data disclosure and third-party assurance.

 

How to Get Started with Sustainability Reporting

For companies new to sustainability reporting, the process can seem daunting. However, the steps are manageable with the right approach:

  • Define Scope and Objectives: Decide what you want your report to achieve and who the target audiences are.
  • Engage Internal Stakeholders: Cross-functional collaboration is essential. Executive leadership buy-in is crucial.
  • Conduct a Materiality Assessment: Identify which ESG topics are most relevant to your business and stakeholders.
  • Collect and Organise Data: Identify key performance indicators (KPIs), gather historical data, and ensure accuracy.
  • Choose a Reporting Framework: Select one or more frameworks that align with your goals and industry.
  • Draft and Review: Combine data with narrative context. Internal reviews and stakeholder feedback loops strengthen the output.
  • Publish and Distribute: Make the report accessible online and communicate its availability to stakeholders.
  • Set Improvement Goals: Use the process to identify areas for future improvement and track performance.

 

Challenges and Criticism

Despite its benefits, sustainability reporting is not without criticism. Common challenges include:

  • Data Quality and Availability: Companies often struggle with fragmented or unreliable ESG data.
  • Greenwashing: Some reports are accused of exaggerating or misrepresenting efforts, undermining trust.
  • Lack of Standardisation: Comparing reports can be difficult with multiple frameworks in use.
  • Resource Intensity: Collecting and verifying ESG data requires time, expertise, and investment.

Addressing these issues involves improving internal systems, investing in training, and advocating for unified standards. Many of these concerns were raised by manufacturers in the recent Sustainability report for businesses, many of whom wanted to do better, but found the process difficult and time consuming. 

 

Conclusion

Sustainability reporting is more than a trend; it is a strategic imperative for modern businesses. By transparently communicating their ESG impacts and goals, companies can build trust, mitigate risk, and position themselves as leaders in a rapidly changing world.

Whether you are a small business taking your first steps or a multinational refining your approach, clear and credible sustainability reporting can become one of your most powerful tools for long-term success.

 

Bethany

About the Author

Bethany

Content Manager Sustainable Product Index

Bethany is the Content Manager at Sustainable Product Index (SPI), where she leads the development of clear, engaging, and educational content to support sustainability-focused consumer decisions. With a background in digital content strategy and a passion for environmental impact, Bethany ensures SPI’s resources are accessible, accurate, and aligned with the latest developments in sustainable product manufacture. Her work helps bridge the gap between complex sustainability topics and everyday purchasing choices, empowering consumers to make decisions that benefit both people and the planet.

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