Contact
Write us or just call
We're glad to hear from you!
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- Our business hours:
- Monday - Thursday: 9:30 - 16:00
- Friday: 9:30 - 12:00
Get in touch
We are happy about any feedback
Come by
Kaiserstrasse 113 53113 Bonn
Together for the energy turnaround
The faces behind
Barbara Fricke
Green Power Certification Manager
Christian Knops
Green Gas Certification Manager
Melanie Alberts
Head of Communication & Marketing
Eva noise
Green Power Certification Coordinator
Nina Cernohorsky
Speaker Green Gas, Green Power Certification
Michelle Markwart
Management Consultant, Online Communication
Kaspar Lewerenz
Working Student Communication & Marketing
Melina Lukas
Working student assistance management
