ESG (Environmental, Social, Governance) is an analytical framework in which corporate performance is assessed not solely through financial indicators, but together with its environmental, social and governance dimensions. The concept, which began to gain traction in 2004 with the UN Global Compact's "Who Cares Wins" report, is today integrated into the decision-making processes of more than 35 trillion dollars in investment funds. For publicly listed companies, the ESG score has become a parameter that directly influences a wide range of commercial decisions, from share price to credit interest rates.
The Three Dimensions of ESG
Environmental
Measures the organization's environmental footprint. Greenhouse gas emissions (Scope 1, 2, 3), energy consumption, water use, waste management, biodiversity impact and circular economy indicators are evaluated under this heading. Climate risk management and TCFD alignment have become among the most heavily weighted environmental criteria in recent years.
Social
Assesses the organization's relationships with stakeholder groups such as employees, customers, suppliers and communities. Occupational health and safety, diversity and inclusion, human rights, data privacy, product safety and supply chain ethics fall within this scope. In the post-pandemic period, the "S" dimension has gained markedly greater importance in investor attention.
Governance
Examines how the organization is governed. Board structure and independence, executive remuneration policy, shareholder rights, audit mechanisms, business ethics, anti-bribery and anti-corruption, and tax transparency fall under this heading. Governance is the least changeable yet most decisive dimension of ESG, because the quality of the other two dimensions depends on governance maturity.
ESG Rating Agencies
| Agency | Score Range | Key Feature |
|---|---|---|
| MSCI ESG Ratings | CCC - AAA | Sector-based materiality weighting |
| Sustainalytics | 0 - 100 (lower = better) | ESG Risk Rating approach (Negligible - Severe) |
| S&P Global CSA | 0 - 100 | Integrated with the Dow Jones Sustainability Index |
| ISS ESG | A+ - D- | Prime / Not Prime distinction |
| Refinitiv ESG | 0 - 100 | 20+ years of historical data |
| FTSE Russell ESG | 0 - 5 | FTSE4Good index membership criterion |
These agencies may assign different scores to the same company. This is because each uses different sector weightings, different data sources and different methodologies. For this reason, instead of focusing on a single rating, understanding which of your investors use which rating is a critical step.
Practical Impacts of the ESG Score
- Investment fund access: ESG funds include only companies above a certain score in their portfolios. A low score prevents the organization from entering the pool of sustainable investment funds.
- Cost of credit: In instruments such as sustainability-linked loans and green bonds, the interest rate is tied directly to ESG performance.
- Insurance premiums: Reinsurance companies increasingly demand higher premiums from clients with high climate risk, and ESG data forms the basis of this risk assessment.
- Contractual customer relationships: The ESG score is taking an increasingly prominent place in the supplier selection criteria of B2B customers.
- Talent attraction: Younger talent tends to prefer organizations with strong ESG performance. The ESG score has also become part of human resources strategy.
Our Approach to ESG Score Management
Our ESG consulting begins by analyzing which rating agencies an organization is exposed to. Priority rating agencies are determined according to the investor base, and a preparation plan tailored to each agency's methodology is established. Score improvement is not a one-off document submission; it requires annual reporting, a continuous flow of data and active communication.
A high ESG score comes not from good policies, but from measurable results that demonstrate those policies in action on the ground. A score reflects performance, not communication.
Frequently Asked Questions
- Are ESG and sustainability the same thing?
Close, but not identical. Sustainability is a holistic corporate management discipline. ESG is the version of that discipline analyzed across three dimensions by investor and financial circles. In practice, it is the same content presented to different stakeholders under a different name.
- Is applying to ESG rating agencies a paid process?
Many of them generate and publish a basic score free of charge. However, paid membership may be required for detailed feedback reports and a verified score. MSCI and Sustainalytics operate on this model. Platforms such as CDP do not require a separate membership to submit a response, but verification costs do apply.
- Is an ESG score meaningful for privately held companies?
Yes. Private equity investors, banks and large B2B customers request ESG data from privately held companies. EcoVadis is the most widely used platform for private companies. Privately held companies are generally not assessed directly by MSCI or Sustainalytics.
- How is an ESG score improved on an annual basis?
Three practical investments deliver the highest return in most sectors: improving the data quality of quantitative KPIs (particularly environmental), enhancing board diversity, and conducting climate risk analysis in line with the TCFD/IFRS S2 standard.