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Sustainability Reporting & Assurance

justReporting is a specialized audit firm (Wirtschaftsprüfungsgesellschaft) focused on sustainability reporting and assurance. We guide mid-market companies through CSRD/ESRS implementation, double materiality assessments, EU Taxonomy reporting, and independent assurance engagements under ISAE 3000. With Big-4 experience and deep regulatory knowledge, we deliver efficient, pragmatic projects with direct access to the auditor. Based in Germany, serving clients throughout the DACH region.

  • Min project size
    $1,000+
  • Hourly rate
    $150 - $199 / hr
  • Employees
    2 - 9
  • Year founded
    Founded 2024

Overview by:

Reviewer avatar
Jannik Hassel
Founder & Managing Partner (Wirtschaftsprüfer) About the Team

Service Lines
Compliance Consulting
30%
Select Focus Area
Business Consulting Focus
Due Diligence Consulting
20%
Industries
Energy & natural resources
35%
Business services
25%
Manufacturing
25%
Financial services
15%
Clients
Small Business (<$10M)
50%
Enterprise (>$1B)
25%
Midmarket ($10M - $1B)
25%

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Our Story

justReporting was founded in 2024 by Jannik Hassel, a licensed German auditor (Wirtschaftsprüfer) with over 10 years of Big-4 experience at EY, Deloitte, and PwC. After seeing mid-market companies struggle with complex sustainability regulations, he built justReporting to bring enterprise-level methodology directly to the Mittelstand. As a registered audit firm, we combine consulting and independent assurance – directly with the partner, always accessible.

Meet the Team

Jannik Hassel

Jannik HasselFounder & Managing Partner (Wirtschaftsprüfer)

Licensed German auditor with 10+ years at EY, Deloitte, and PwC. Specializes in CSRD/ESRS implementation, double materiality assessments, and sustainability assurance under ISAE 3000. IDW working group member.

What Sets Us Apart

Consulting + Assurance Under One Roof

As a registered German audit firm (WPG), we uniquely offer both sustainability consulting and independent assurance. Clients get CSRD/ESRS implementation support and external verification from one partner – ensuring consistency and efficiency throughout the reporting process.

Big-4 Expertise, Mittelstand Focus

Our founder brings 10+ years from EY, Deloitte, and PwC – and applies that expertise to the German Mittelstand. You work directly with the auditor, ensuring faster decisions, deeper understanding, and seamless communication throughout every engagement.

VSME-First for SMEs

We specialize in the EFRAG Voluntary SME Standard (VSME) – helping smaller companies start with proportionate, audit-ready sustainability reporting before full CSRD requirements apply. Our approach: steer first, then report.

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