A deep dive into the disconnect between corporate ESG performance and rating agency scores—and the actionable steps companies can take to close the gap

Guest Post By; Kelly KIRSCH-Directeur Général ESG Europe at ESG.AI Europe

In today’s financial landscape, Environmental, Social, and Governance (ESG) ratings have moved beyond a niche concern for sustainability teams to a core strategic priority for boards and executives. These ratings influence everything from cost of capital to investor relations, regulatory compliance, and even consumer trust. Yet, despite significant investments in sustainability, many companies find their ESG ratings fail to reflect their actual progress. The issue isn’t a lack of effort—it’s a fundamental misalignment between how companies report their ESG initiatives and how rating agencies evaluate them.

This disconnect carries real financial consequences. Lower-than-expected ESG ratings can limit access to sustainable financing, exclude companies from ESG-focused indices, and even erode investor confidence. The problem isn’t that companies aren’t doing enough; it’s that what they are doing isn’t always visible to the algorithms and analysts that determine their scores.

The Root of the Problem: A Mismatch in Priorities

ESG rating agencies—such as MSCI, Sustainalytics, S&P Global, and LSEG/Refinitiv—operate with precise, but often opaque methodologies. Their models prioritize structured, quantifiable data over broader sustainability narratives. A company might have a world-class carbon reduction program, but if its disclosures lack the specific data, metrics or formatting that agencies require, that progress may go unrecognized.

Three Key Challenges:

1. Granular Data Requirements
   Rating agencies don’t just want to know if a company is addressing climate risk—they want to see detailed breakdowns of Scope 1, 2, and 3 emissions, intensity-normalized figures, and third-party verification flags. A high-level commitment to “net-zero by 2050” won’t suffice if the underlying data isn’t presented in the exact way the agency’s model expects.

• Thematic Reporting vs. Data-Driven Scoring
  Many ESG reporting platforms and frameworks (such as GRI or SASB) encourage companies to discuss material risks and long-term strategies. While valuable for stakeholders, these narratives often don’t align with the data-field-level analysis that drives ratings. For example, a company might emphasize its supply chain ethics in a sustainability report, but if it doesn’t disclose supplier audit rates or human rights due diligence processes in the format required by MSCI or Sustainalytics, that effort won’t contribute to its score.

• Limited Transparency in Scoring
  Unlike financial audits, ESG ratings provide little clarity on how scores are calculated. Companies receive a final rating but rarely a detailed breakdown of which disclosures were prioritized, credited, overlooked, or penalized. Without this feedback loop, even well-intentioned firms struggle to make targeted improvements.

The Consequences of the Gap

The implications of this misalignment extend far beyond reputation. ESG ratings are increasingly tied to financial outcomes:

• Cost of Capital: Banks and investors use ESG scores to determine loan margins, bond pricing, and investment eligibility. A lower score can translate to higher financing costs.

• Index Inclusion: Funds tracking ESG indices (e.g., MSCI ESG Leaders, FTSE4Good) automatically exclude or underweight companies with weaker ratings, limiting access to a growing pool of ESG-focused capital.

• Regulatory and Stakeholder Pressure: As frameworks like the EU’s Corporate Sustainability Reporting Directive (CSRD) come into effect, companies face mounting pressure to demonstrate not just ESG activity, but measurable, comparable progress.

• For example, a European manufacturer with a strong track record on emissions reduction might assume its efforts will be reflected in its Sustainalytics score—only to find that missing a single data point (e.g., a breakdown of Scope 3 Category 11 emissions) results in a lower-than-expected rating. The result? Higher borrowing costs and exclusion from ESG funds, despite real-world progress.

Bridging the Gap: A Data-Driven Approach

The solution lies in strategic disclosure optimization—a process that ensures ESG reporting aligns with the exact requirements of rating agencies. This doesn’t require companies to change their sustainability strategies, but rather to present their existing efforts in a way that rating algorithms can recognize and reward.

Step-by-Step Optimization:

1. Audit Existing Disclosures Against Agency Criteria
   Begin by comparing current ESG reports with the specific data fields and formats used by MSCI, Sustainalytics, and other key raters. Identify gaps where disclosures are missing, incomplete, or misaligned. For instance, if an agency requires board diversity metrics to be reported by gender andethnicity, but a company only discloses gender, that’s an easy fix with outsized impact.

• Restructure Data for Machine Readability
  Rating agencies increasingly rely on automated systems to process disclosures. Companies that present data in standardized, machine-readable formats (e.g., XBRL for ESG) are more likely to receive full credit. This might mean reorganizing a sustainability report to highlight key metrics upfront or tagging data to match agency taxonomies.

• Simulate Score Improvements Before Submission
  Advanced tools, like the ESG.AI Score Navigator, help to close the gap, companies must adopt a ‘reverse-engineered’ audit approach. This involves mapping internal sustainability data directly against the specific, field-level requirements of major rating agencies before the reporting cycle begins. For example, a company can test whether adding a third-party assurance flag to its emissions data would lift its MSCI score—and by how much. This enables firms to prioritize high-impact adjustments before finalizing their reports.

• Focus on High-Value Metrics
  Not all ESG factors are weighted equally. Carbon emissions, governance transparency, and supply chain data typically carry more influence than softer metrics. Companies should ensure these areas are fully disclosed, verified, and aligned with agency expectations.

• Engage Directly with Rating Agencies
  While agencies guard their methodologies closely, many offer opportunities for companies to clarify disclosures or provide additional evidence. Proactively engaging with raters can help resolve ambiguities and ensure nothing is overlooked.

Case Study: From Overlooked to Optimized

Consider the case of a mid-cap industrial firm that had reduced its Scope 1 and 2 emissions by 30% over five years. Despite this achievement, its Sustainalytics score remained stagnant. A closer review revealed two issues:

• The company’s emissions data was reported in aggregate, without the category-level breakdowns Sustainalytics required.
• Its governance disclosures lacked a clear flag for third-party assurance, which the agency’s model penalized.

By restructuring its emissions data to include the missing breakdowns and explicitly noting its use of external auditors, the company saw its score improve by 1.5 points—enough to qualify for a sustainability-linked loan with a 10-basis-point margin reduction.

Similarly, a financial services firm discovered that its board diversity metrics were buried in a PDF appendix, rather than presented in the standardized table format preferred by MSCI. Moving this data to a prominent, machine-readable section of its report resulted in a 1-point score increase, directly enhancing its appeal to ESG-focused investors.

The Broader Shift: From Compliance to Competitive Advantage

Optimizing ESG disclosures IS about assuring real sustainability is recognized. It’s about ensuring that real sustainability progress is accurately reflected in the metrics that matter to markets. For forward-thinking companies, this represents an opportunity to :

• Unlock Lower Costs of Capital: Higher ESG ratings correlate with better financing terms, as banks and investors reward transparency and performance.

• Attract ESG-Focused Investment: Funds with ESG mandates now manage over $40 trillion in assets globally. Companies with strong, well-communicated ESG performance are better positioned to access this capital.

• Enhance Reputation and Trust: Transparent, aligned disclosures reduce perceived risk and signal commitment to stakeholders—from regulators to customers.

As one CFO put it: “We spent years reducing our environmental footprint, but our ratings didn’t reflect that. Once we aligned our disclosures with what the agencies were actually measuring, our scores improved—and so did our access to capital.”

The Regulatory and Market Context

This shift comes at a critical juncture. Regulators in the EU, U.S., and Asia are tightening ESG disclosure rules, while rating agencies face scrutiny over their methodologies. Companies that proactively align their reporting with both regulatory requirements and rating agency expectations will be best positioned to navigate this evolving landscape.

In Europe, the CSRD now requires detailed, audited ESG disclosures—many of which overlap with the data points that rating agencies prioritize. Companies that treat ESG reporting as a strategic exercise, rather than a compliance checkbox, will gain a competitive edge.

The Bottom Line

ESG ratings are no longer just a measure of sustainability—they’re a financial and strategic asset. Companies that take a data-driven approach to their disclosures can bridge the gap between performance and perception, turning their ESG efforts into a source of competitive advantage.

The message is clear: It’s not enough to do the work. You have to make sure it’s seen.

About the Author

Kelly Kirsch is Director General of ESG.AI’s European headquarters in Paris, where he leads regional strategy for the fintech platform behind the ESG.AI ESG Score Navigator, a solution designed to optimize ESG ratings performance. He holds an ALM in Sustainability from Harvard University, as well as an MBA and Master of Finance from Hult International Business School. Kelly brings a strong background in global finance, having worked with Bank of America, HSBC, and JPMorgan Chase, and has contributed to sustainability initiatives at Pomellato, part of the Kering Group. In addition to his industry work, he is an active academic contributor and speaker, having served as a guest lecturer at ESSCA, ESCP’s Excellence Propulsion Program, and Harvard Extension School’s Sustainable Finance course, and regularly speaks at leading events including the Baltic Sustainability Awards, Le Forum d’Engagement, and the Audencia AI Festival.

Subscribe to ESG News’ Daily ESG Newsletter | Follow us on LinkedIn