How Carcoustics Cuts EcoVadis Preparation from Months to Weeks with Sunhat

The Situation

In Automotive, Your Rating Is Part of the Deal

For Carcoustics, sustainability performance has become a vital condition of doing business. Automotive customers track suppliers closely, and they do it through structured instruments: ratings, portals, and detailed questionnaires, with specific thresholds attached.

Christoph Seck, Global Sustainability Manager at Carcoustics, turns those requirements into strategies and practical actions across the company's sites, including ESG reporting and the handling of customer questionnaires and ratings such as EcoVadis.

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That expectation lands on a company with production sites in nine countries across three continents, and it lands continuously rather than once a year.

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The Challenge

The Work Is Done. But the Proof Is Spread across Sites, Countries and Departments.

The difficulty at Carcoustics was never the sustainability work itself. It was the distance between the work and the evidence for it.

“A very good example is the EcoVadis rating, which is very complex. It's not just about answering the right questions; it's about collecting data, evidence, and proof, which is allocated across different departments and plans. And that makes the process very, very complicated.” Christoph Seck

EcoVadis shows what that looks like in practice. The rating asks for evidence in its own logic, which rarely matches the way a site files its documents. Someone has to translate the criteria into a short list a site can act on, then gather answers from HR, HSE, procurement, compliance and finance. That translation work sat with one central team. And each assessment began without the benefit of the last one, because evidence proven at one site stayed at that site.

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The Sunhat Moment

The EcoVadis Rating Became Something Tangible the Sites Could Act On

Carcoustics decided to run EcoVadis differently: one shared platform for every site, instead of each site working through the assessment on its own. What Christoph noticed first was not a feature.

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From there, each cycle starts further along than the last. Sunhat shows what proof already exists in the group, including evidence another site has had accepted, so a site begins from what is covered rather than from a blank list. Open items route to the function that owns them, and progress stays visible in one place instead of across parallel email threads.

"Sunhat supports us by making sustainability work less fragmented. We don`t need to start from scratch every time and we can build on existing solutions and that makes it much more easier for everyone involved." Christoph Seck

That is the shift behind the numbers: the same proof serves more than one request, and the next assessment starts further along than the last one.

The Results

Nováky Gained 11 EcoVadis Points within Two Weeks

The clearest result shows up at site level, where the coordination used to be hardest.

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For Christoph, the change is as much about control as about hours:

"For me personally, working with Sunhat means less firefighting and more control. I am able to turn a reactive process into something that I can really manage. We can deliver very good outcomes with it, and it makes it easier for everyone."