What are ESG ratings?

Understanding ESG ratings: Definition, importance, and best practices

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November 26, 2024

In recent years, ESG ratings have emerged as a vital metric for companies, investors, and stakeholders who aim to assess a company’s commitment to sustainability and ethical practices. These ratings evaluate a company’s performance in environmental impact, social responsibility, and governance practices, providing a precise measure for investors and stakeholders. 

The growing importance of ESG ratings is underscored by increasing investor interest. According to PwC’s Asset and Wealth Management Revolution 2022 report, assets under management (AuM) related to ESG investments are projected to reach €31.9 trillion (USD 33.9 trillion) by 2026, making up 21.5% of global AuM. This marks a sharp increase from €17.5 trillion (USD 18.4 trillion) in 2021, illustrating the rapid shift towards sustainability in the financial markets.  

This article will clearly define ESG ratings, explore their components, discuss the benefits of strong ESG performance, highlight some criticisms, and offer practical strategies for improving these ratings.

What is an ESG rating?

What are ESG ratings?
Are you good or bad at ESG? That's what ESG ratings can answer.
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ESG ratings reflect a company’s performance in managing environmental, social, and governance risks. Understanding what these ratings measure is key to grasping how companies are evaluated on their sustainability and ethical practices.

A clear definition of ESG rating

An ESG rating evaluates a company’s performance in managing environmental, social, and governance risks and opportunities. These ratings are issued by third-party agencies and are designed to provide a holistic view of how well a company aligns its operations with sustainable and ethical practices.

The components of ESG ratings

ESG stands for environmental, social and governance. There are the 3 categories of the evaluation : 

  • Environmental (E): This category assesses a company’s impact on the planet, including its carbon footprint, resource use, pollution control, waste management, and energy efficiency.
  • Social (S): Social factors include a company’s treatment of employees, customer relations, community engagement, diversity and inclusion efforts, and adherence to labour rights.
  • Governance (G): Governance evaluates corporate leadership, executive pay, board diversity, ethical practices, and shareholder rights. It also examines how transparent and accountable management is to both internal and external stakeholders.
Explore more about ESG reporting with our exclusive Whitepaper.

What is the purpose of ESG rating?

The primary goal of ESG ratings is to promote transparency and responsible business practices by enabling companies to improve their sustainability efforts.

They also help investors make more informed decisions by identifying businesses that align with long-term sustainability trends. High ESG scores are also associated with improved access to capital and stronger financial performance.

Key players in the ESG rating industry

Major agencies like MSCI, Sustainalytics, and S&P Global assign ESG ratings, often influencing investment decisions in global financial markets:

  • MSCI: Known for its comprehensive ESG rating system, MSCI evaluates thousands of companies worldwide based on various sustainability criteria. 
  • Sustainalytics: Specialising in risk ratings, Sustainalytics focuses on measuring how healthy companies manage ESG risks that may affect their long-term financial performance.
  • S&P Global: S&P offers ESG scores and reports that emphasise the financial materiality of sustainability practices.
  • LSEG (previously Refinitiv): A data provider that evaluates companies across ESG dimensions to help investors understand the sustainability risks.
  • ISS ESG: Focuses on providing data and analytics on corporate governance and responsible investing.

ESG rating: The impact on companies 

ESG ratings directly impact businesses, influencing everything from investor interest to brand reputation. It is essential to understand how these ratings affect companies, their challenges, and the potential benefits of strong ESG performance.

What companies are subject to ESG rating?

ESG ratings typically target publicly listed companies, as these firms are often required to disclose sustainability-related data to meet regulatory demands or investor expectations. 

However, large private companies, especially those with significant environmental footprints or social influence, are increasingly evaluated on ESG criteria. For instance, the European Union’s Corporate Sustainability Reporting Directive (CSRD) mandates ESG reporting for large corporations, pushing many businesses toward greater transparency. Startups with strong sustainability missions may also seek ESG ratings to attract investors.

How do companies benefit from good ESG ratings?

High ESG ratings offer several tangible and intangible benefits for businesses, including:

  • Attracting investors: With the rise of responsible investing, many institutional investors seek companies with strong ESG performance. A high rating signals to investors that the company is well-positioned to manage long-term risks and opportunities.
  • Enhancing brand reputation: Companies with high ESG ratings often gain a positive reputation among consumers, employees, and business partners, driving brand loyalty and trust.
  •  Improving risk management: ESG evaluations help identify operational and strategic risks related to environmental compliance, labour relations, and governance, enabling businesses to mitigate potential issues before they escalate.
  • Complying with regulations: In regions like the EU, where ESG reporting is mandatory for many companies, a strong rating can simplify compliance and reduce regulatory scrutiny.
  • Securing long-term profitability: Companies with robust ESG practices often have better financial returns.
Benefits of ESG

Globally, research has shown that companies with strong ESG practices outperform their peers. Companies with high ESG scores outperformed the market by 1.9% annually from 2013 to 2020. Additionally, S&P Global analysis shows that firms with good ESG strategies demonstrate greater resilience, particularly during economic downturns.

Source: Study by MSCI

Challenges and criticisms of ESG ratings

Despite their growing influence, ESG ratings face several criticisms. One of the primary issues is the lack of standardisation, as different rating agencies use varying criteria and methodologies. This inconsistency can lead to conflicting ratings for the same company, confusing investors and stakeholders.

Additionally, there are concerns about greenwashing, where companies may artificially inflate their ESG scores by focusing on superficial efforts while neglecting deeper, systemic changes.

The subjective nature of some ESG criteria further complicates the process, as ethical practices are often difficult to quantify and vary across cultural and geographic contexts. Lastly, the cost of complying with ESG rating requirements can be burdensome, especially for smaller companies.

How to improve your company’s ESG rating? 

Improving a company’s ESG rating requires a strategic, long-term approach to integrating sustainable practices. Below, find some best practices to enhance ESG performance.

1. Develop a comprehensive ESG strategy

Every company needs a tailored ESG strategy that addresses the specific risks and opportunities relevant to its industry. A comprehensive plan should include measurable objectives across all three ESG pillars, focusing on long-term sustainability.

For example, energy companies face high environmental risks related to carbon emissions. In contrast, tech companies must focus on social issues like data privacy, and manufacturing firms have opportunities to improve their governance by enhancing supply chain transparency.

2. Focus on transparent reporting

Accurate and transparent reporting is crucial for improving ESG ratings. Companies should establish clear communication channels to provide stakeholders with verifiable data on their ESG efforts. For example, detailed reporting on emissions, labour practices, and governance policies can help boost a company’s credibility with rating agencies.

Plan A simplifies this process by offering tools to automate and enhance ESG reporting. Leverage Plan A’s platform today to improve your transparency and ratings.
Plan A simplifies this process by offering tools to automate and enhance ESG reporting. Leverage Plan A’s platform today to improve your transparency and ratings.

3. Engage stakeholders

Improving ESG performance requires the involvement of all stakeholders, including employees, customers, investors, and communities. Engaging stakeholders in the goal-setting process ensures that ESG objectives are aligned with business priorities and that accountability is shared across the organisation.

4. Set long-term ESG goals

Rather than focusing on short-term improvements, companies should establish long-term ESG goals that demonstrate a commitment to continuous improvement. 

For example, setting science-based carbon reduction targets or implementing diversity and inclusion programs with measurable outcomes can strengthen ESG ratings.

5. Track progress and adapt

It’s essential for companies to regularly monitor their ESG performance and adjust their strategies based on evolving data and trends. Implementing tracking systems can help companies measure progress against their goals, while periodic reviews allow for flexibility in responding to new challenges or opportunities.

The role of carbon management for the environmental component of ESG ratings 

The environmental aspect of ESG ratings is increasingly tied to a company’s ability to manage its carbon footprint. Given the global focus on reducing greenhouse gas emissions, businesses must pay special attention to carbon management as a key factor in their ESG score. 

Below are the essential steps to improve carbon performance.

Accurate and frequent calculations of Corporate Carbon Footprint (CCF)

Regular and precise carbon footprint calculations are vital for tracking progress and improving a company’s environmental score. Adopting internationally recognised standards like the Greenhouse Gas (GHG) Protocol ensures accurate and comparable data.

Reporting and transparency

Transparent reporting of carbon emissions, reduction strategies, and sustainability initiatives builds trust with stakeholders and rating agencies. Companies known for their rigorous reporting practices often achieve higher ESG ratings.

Target setting and actions to decarbonise

Companies must set ambitious but achievable carbon reduction targets. Actions may include increasing energy efficiency, switching to renewable energy sources, or decarbonising the supply chain. A commitment to continuous decarbonisation efforts signals to investors and stakeholders that the company is serious about sustainability.

 Set and monitor your decarbonisation targets with Plan A.
Set and monitor your decarbonisation targets with Plan A.

Continuous improvement

The environmental component of ESG ratings requires ongoing efforts. Companies must regularly revisit their decarbonisation strategies, adapt to new regulations, and strive for innovation in reducing their carbon footprint.

Conclusion

As sustainability becomes a central part of doing business, keeping a strong ESG rating is no longer just a trend, it's essential for staying ahead. Companies that embrace sustainable practices and demonstrate transparency, stakeholder engagement, and a commitment to continuous improvement can expect to reap the rewards of investment, reputation, and profitability.

By developing comprehensive ESG strategies, improving carbon management, and setting long-term goals, businesses can significantly enhance their ESG performance and ensure relevance in an increasingly sustainability-conscious world.

Try Plan A’s carbon management platform to calculate, track, and reduce your CCF. Start optimising your environmental impact today.

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