CSRD Experts in Monheim am Rhein

Jannik Hassel

Wirtschaftsprüfer (German CPA) & Sustainability Reporting Specialist

Jannik is a certified German Wirtschaftsprüfer (CPA) and founder of justReporting, a registered audit firm specializing in sustainability reporting and assurance for mid-sized companies. Many SMEs are not directly subject to the CSRD but face growing ESG data requests from OEMs and large customers through the value chain. Jannik helps these companies navigate the full journey: Gap analysis and double materiality assessments VSME and CSRD/ESRS implementation Independent report assurance under ISAE 3000 Green electricity verification and supply chain assurance for international automotive OEMs With 10+ years of Big Four experience (EY, PwC, Deloitte), university lectureships in Business Analytics and sustainability reporting, and a seat on the IDW Digital Advisory Committee, he combines regulatory depth with a practical, technology-driven approach. Advisory and assurance from a single source.

justReportingFirm

Registered German audit firm (Wirtschaftspruefungsgesellschaft) specializing in sustainability reporting and assurance for mid-sized companies. justReporting supports SMEs navigating CSRD/ESRS requirements, VSME implementation, and value chain compliance — from gap analysis and double materiality assessments through to independent report assurance under ISAE 3000. The firm also provides green electricity verification and supply chain assurance for international automotive OEMs. Founded by Jannik Hassel (10+ years Big Four experience), justReporting combines regulatory depth with a practical, technology-driven approach.