Finding Carbon Data Providers for Financed Emissions

Howden manages Scope 3 PG&S emissions across 55 countries with DitchCarbon.
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Finding carbon data providers for financed emissions reporting
For asset managers and owners, the era of relying on broad ESG ratings is ending. When finding carbon data providers today, the focus has shifted from high-level risk scores to granular, asset-level emissions data. This transition is driven by the need for more accurate financed emissions reporting, specifically aligned with the Partnership for Carbon Accounting Financials (PCAF) standard. As institutional investors face increasing pressure to demonstrate real-world decarbonisation within their portfolios, the quality of the underlying data becomes the primary bottleneck for progress. Asset managers are no longer satisfied with sector-level averages that fail to distinguish between leaders and laggards in the same industry.
The challenge of finding carbon data providers that can deliver this level of detail is particularly acute in private markets. Unlike publicly traded companies, private firms often lack the resources or the regulatory mandate to publish comprehensive greenhouse gas (GHG) inventories. This leaves investment teams with significant coverage gaps that must be filled with high-quality, verified data. By finding carbon data providers that specialise in mapping the long tail of a portfolio, asset owners can move away from the manual work of chasing individual companies for spreadsheets and instead focus on strategic allocation and engagement. The goal is to achieve a decision-ready output that can be shared with Limited Partners (LPs) and regulators with full confidence in its provenance.
Why traditional ESG scores fall short when finding carbon data providers
In the past, many investment firms relied on broad Environmental, Social, and Governance (ESG) scores to assess their portfolio impact. However, these scores are often aggregated from hundreds of disparate metrics, many of which are qualitative or unrelated to actual carbon intensity. Many investment teams are finding carbon data providers that provide actual GHG inventory data rather than modelled estimates because ESG scores often lack the granularity needed for carbon accounting. For example, a high ESG score might be driven by excellent governance or social policies, while the company’s actual carbon footprint remains high. This makes ESG scores a poor proxy for financed emissions, which require a strict focus on Scope 1, 2, and 3 emissions data.
The transition from risk-based ESG to impact-based carbon accounting is the single most important shift in sustainable finance today. We need to see the actual tonnes of CO2e, not just a relative score against a peer group.
Furthermore, traditional ESG ratings are often updated on an annual cycle, which can be too slow for active managers who need to see the impact of their decisions in near-real-time. When finding carbon data providers, asset managers are now prioritising those who offer continuous data refreshes and documented sources. This level of transparency is essential for audit-ready reporting. If a baseline shifts or a methodology changes, the investment team must be able to trace that change back to its source. Without this provenance, the risk of greenwashing allegations increases, particularly as regulators like the Financial Conduct Authority (FCA) in the UK and the Securities and Exchange Commission (SEC) in the US tighten their oversight of climate-related claims.
Essential features when finding carbon data providers for private equity
Private equity firms face unique hurdles when it comes to carbon data. Because they often have significant control over their portfolio companies, there is a higher expectation for primary data collection. When finding carbon data providers for private markets, data provenance is the most critical factor. The provider must be able to show exactly where a data point came from, whether it was a public disclosure, a direct survey response, or a verified estimate. This is crucial for maintaining a high data quality score under the PCAF framework, where primary data is ranked significantly higher than sector-level averages.
Key criteria to consider when finding carbon data providers include:
- Coverage of private entities: The ability to map emissions for non-listed companies across multiple jurisdictions.
- Methodological transparency: Clear documentation on how estimates are calculated when primary data is unavailable.
- Alignment with global standards: Ensuring that all data is categorised according to the GHG Protocol and PCAF requirements.
- Ease of integration: The capability to plug data directly into existing portfolio management systems via API or bulk export.
- Engagement support: Tools that help the General Partner (GP) engage with portfolio companies to improve data quality over time.
By finding carbon data providers that offer these features, private equity firms can streamline their reporting processes and reduce the administrative burden on their investment teams. Instead of spending weeks manually reconciling different data formats, they can use a single source of truth that is updated automatically. This efficiency allows the sustainability lead to spend more time on value-creation activities, such as helping portfolio companies implement energy efficiency measures or transition to renewable energy sources.
Strategies for finding carbon data providers that offer primary data
Asset owners are finding carbon data providers that can help bridge the gap between estimated and primary data. While estimations are a necessary starting point for achieving 100 percent portfolio coverage, the ultimate goal is to increase the proportion of primary data over time. This requires a sophisticated approach to supplier and portfolio engagement. A good data provider should not only give you a number but also provide the tools to improve that number. This might include automated survey platforms that minimise the burden on the reporting company by pre-filling known data or using existing disclosures from other frameworks.
Normalising data across asset classes
One of the most complex tasks for an asset manager is normalising carbon data across different asset classes, such as listed equities, corporate bonds, and real estate. Each asset class has its own reporting nuances and attribution factors. When finding carbon data providers, it is important to choose one that can handle this complexity and provide a unified view of the total financed emissions. This allows the investment committee to see hotspots across the entire AUM and make informed decisions about divestment or engagement. Normalisation also ensures that the data is comparable year-over-year, which is essential for tracking progress against Science Based Targets (SBTi).
Audit-ready outputs for TCFD and SFDR
The final step in the carbon accounting journey is producing reports that meet the requirements of frameworks like the Task Force on Climate-related Financial Disclosures (TCFD) and the Sustainable Finance Disclosure Regulation (SFDR). By finding carbon data providers that offer transparent methodologies, asset managers can report with confidence. These reports need to be more than just a single number; they must include a breakdown of emissions by scope, intensity metrics like WACI, and a clear explanation of any data gaps or assumptions. Having an audit trail that shows every change and version of the data is the best way to ensure that these reports pass internal and external scrutiny. This level of rigour is what transforms carbon reporting from a compliance exercise into a strategic advantage.
In conclusion, finding carbon data providers is the first step toward a credible net zero pathway. For asset managers and owners, the focus must remain on data quality, provenance, and the ability to drive real-world reductions. By moving beyond broad ESG scores and embracing granular, asset-level emissions data, the financial sector can play its part in the global transition to a low-carbon economy. The right data provider will not only lighten the administrative load but also provide the insights needed to turn climate commitments into measurable action.
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