Our team

Green Umweltberatung is your specialized environmental consulting for biogas and biomethane. We assist plant operators with key requirements related to regulatory, economic, and operational issues. Our focus is on supporting certification and audit processes, GHG calculations, Nabisy and UDB procedures, assistance with EEG tenders, and practical training.

We combine regulatory expertise, operational feasibility, and many years of industry experience. Our goal is to translate complex requirements into robust, economically sound, and practical solutions.

Andre Zurwellen von Green Umweltberatung für Biogas und Biomethan

Andre Zurwellen

Managing Director
Janet Hochi von Green Umweltberatung für Biogas und Biomethan

Janet Albartus

Managing Director
Ruben Gerecke von Green Umweltberatung für Biogas und Biomethan

pp. Ruben Gerecke

Head of Greenhouse Gas Accounting
Carl-Bernd Möhlenhaskamp von Green Umweltberatung für Biogas und Biomethan

pp. Carl-Bernd Möhlenhaskamp

Certification Manager
Maria Freese von Green Umweltberatung für Biogas und Biomethan

Maria Freese

Back Office Manager
Annika Budde von Green Umweltberatung für Biogas und Biomethan

Annika Budde

Executive Assistant
Ken Marvin Bätz von Green Umweltberatung für Biogas und Biomethan

Ken Marvin Bätz

Manager of Greenhouse Gas Accounting and Certifications
Ricarda Bay von Green Umweltberatung für Biogas und Biomethan

Ricarda Bay

Manager of Greenhouse Gas Accounting and Certifications
Merle Wulf von Green Umweltberatung für Biogas und Biomethan

Merle Wulf

Marketing Manager

Our values

Ownership

You can count on us: We take responsibility, contribute our ideas, and drive projects forward with dedication and initiative — to deliver measurable results that meet your needs.

Cohesion

For us, genuine collaboration is key — we communicate openly, work together as partners, and are fully committed to our shared success.

Commitment to implementation

We tackle your challenges pragmatically and efficiently — with clear priorities, speed, and a strong focus on effective solutions.

Excellence

You benefit from our commitment to the highest quality: We work closely with you, continuously optimize our processes, and deliver solutions that stand the test of time.

Join our team

(Junior) Manager, GHG Accounting & Certification (m/f/d)

Do you have questions about our job openings? Please feel free to use our contact page.