Sunhat secures $9.8m to scale AI-driven ESG data verification

By Vriti Gothi

Sunhat, has raised $9.8 million in a Series A funding round, led by CommerzVentures with continued support from Capnamic, EnBW New Ventures, xdeck, and WEPA Ventures.

The funding strengthens Sunhat’s position as a category-defining platform in AI-native compliance and ESG data validation, building on its mission to close the critical “proof gap” enterprises face in responding to ever-expanding demands from customers, regulators, investors, and lenders. Since its launch in 2022, Sunhat has raised a total of $15.2 million and today supports thousands of users across more than 20 countries.

Enterprises are generating vast amounts of compliance and ESG-related data, yet often struggle to deliver verifiable, stakeholder-ready proof in real time. Research highlights that employees lose up to 360 hours annually searching for documentation, with fragmented systems slowing the ability to meet increasingly complex global standards. Sunhat addresses this challenge by enabling companies to transform raw ESG, audit, and compliance records into instant, verified responses. By doing so, it helps enterprises not only meet disclosure obligations but also unlock commercial advantage in contracts, financing, and supply chain negotiations.

“Enterprises don’t have a sustainability problem, they have a proof problem,” said Lukas Vogt, CEO and co-founder of Sunhat. “Companies are achieving their standards and hitting their goals, but proving it quickly and consistently is what creates friction. Time-to-proof now decides who wins business and who doesn’t.”

At the heart of the platform is Proof AI, Sunhat’s proprietary intelligence engine trained on thousands of audits, disclosures, and assessments. It automatically maps enterprise data against globally recognised standards such as ISO 9001, ISO 14001, and ISO 45001, as well as disclosure frameworks including CDP and CSRD. Through Proof AI Agents, Sunhat integrates seamlessly with enterprise systems, from SharePoint to specialised ESG, EHS, and quality management platforms. Agents proactively capture new information, verify its validity, and generate audit-ready responses in minutes rather than weeks.

“Too many companies lose deals just because they can’t move fast enough,” said Paul Morgenthaler, Managing Partner at CommerzVentures. “We backed Sunhat because it turns that challenge into a competitive advantage. Proof AI delivers the right data at the right moment, enabling enterprises to respond instantly and confidently.”