Beyond Collection: A Path to Supplier Data for Scope 3

Companies are under growing pressure to account for Scope 3 emissions, but most are still struggling to capture supplier data at the scale and quality needed. As a product manager working on solutions in this space, I’ve seen firsthand where organisations get stuck and where new approaches are starting to unlock progress.

The first time I sat down with a sustainability manager to talk about Scope 3, the frustration was clear. They knew most of their emissions were buried in the supply chain, and they knew that new standards like ISSB’s IFRS S2 and the EU’s CSRD were demanding more transparency. But when it came to the data, everything fell apart: suppliers not responding, or when they did, sending spreadsheets or PDF reports that simply didn’t scale, each one in a different format, difficult to compare and disconnected from the systems companies rely on.

Supply-chain emissions are more than 11 times higher than direct operations. Yet the information needed to manage them is scattered, inconsistent and slow to arrive. As a product manager, this is the challenge that has me hooked: how to turn all of that chaos into something companies can actually trust and use to make decisions. And through my work at Normative, through ongoing discussions with customers, we’ve seen just how urgent this is becoming as reporting requirements expand and the pressure to act intensifies.

If you’re facing the same challenges this reporting season, or simply want guidance on where to start, you can join our upcoming webinar to ask questions and get advice directly from Normative’s climate strategists.

What customers really need

After dozens of conversations with sustainability teams, one thing emerged again and again: the core bottleneck isn’t awareness. Everyone knows the value chain holds the majority of emissions. The real struggle is access and usability. Organisations hit the same three hurdles again and again:

• Finding supplier data
• Judging its quality and maturity 
• Connecting it into their carbon accounting systems
• Identifying where reduction is possible and how to collaborate with suppliers on it

Unless those hurdles are overcome, supplier data stays stuck in silos, disconnected from the numbers that drive reporting and strategy.

Multiple pathways, one system

That’s why we’ve focused on building multiple, interoperable pathways for supplier-specific data to flow into a single system and feed directly into Scope 3 calculations. The aim isn’t to push one “right” method, but to meet organisations where they are and raise data quality over time.

Supplier surveys, partner integrations like EcoVadis, direct uploads of existing information and AI-assisted discovery all become entry points. What matters is not the source, but how seamlessly it connects into calculations. Done right, those inputs don’t just satisfy compliance checkboxes, they generate supplier insights that power benchmarking, reveal hotspots and guide collaborative reduction strategies that make Scope 3 actionable.

The Carbon Network in practice

One key pathway is the Carbon Network: a shared, consent-based data environment where supplier records can be reused instead of re-collected. It also includes curated entries from trusted sources, reducing redundant outreach and giving companies a faster way to find relevant data.

Customers told us what they expect here: one place to search, multi-year views for suppliers, the ability to follow companies and get updates, and clear signals on verification and provenance. In short, not just more data, but structured and transparent data that can be trusted.

The role of AI

AI belongs in this story, but in proportion. Used carefully, it lowers the cost of discovery and helps populate the network. Used carelessly, it adds noise. That’s why we’ve taken a hybrid approach: customer-facing tools for discovery, clearly labeled as requiring validation, combined with Normative’s own automation to scale coverage behind the scenes.

Looking ahead

The challenge won’t disappear. Supply chains evolve and regulations continue to expand. But the direction of travel is clear. Investor expectations and global standards are converging on higher-quality Scope 3 data. Organisations that treat supplier data as a shared resource, accessed through multiple pathways and verified transparently, will be better positioned to comply and to compete.

A networked approach turns supplier data from a search problem into a strategic advantage. At Normative, we’re continuing to refine this model with customers, so that supplier data doesn’t just get collected, it actually drives decisions and reduction.

If you’re ready to move beyond the annual scramble of supplier outreach and build a scalable, decision-ready approach to Scope 3, book a demo with Normative today, or contact us to learn how we can support your journey.