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Problems can only be solved by those who have seen through them – as an accelerator for Cradle to Cradle, we promote this through our educational work. C2C NGO connects business, science, education, politics and civil society.

Our volunteers, who are organized nationwide, carry the idea of Cradle to Cradle into the world. Our Congress is the world’s largest C2C platform: Every year, over 1,000 participants from the C2C community meet here with key figures from science, business and politics. Forums, lectures and workshops offer space for exchange and networking.

Logo türkis rot, C2C Cradle to Cradle NGO

In 2019, we built the C2C LAB in Berlin: the world’s first comprehensive refurbishment of an existing commercial unit according to C2C criteria. As an educational center, NGO head office and real laboratory, the school of thought and design concept can be experienced in practice. Anyone who wants to get involved in leaving a positive footprint can get involved with us.

bunte Fäden, dahiner steht 'für eine bessere Welt', ich arbeite mit C2C



​​In tomorrow’s society, Cradle to Cradle is a given. Following nature’s example, all waste is simply a nutrient for something else. With the production of “garbage” our species has interrupted all natural cycles, but no one does that anymore.

Based on the function of a product, we only use materials that are recyclable and suitable for your usage scenario: healthy for us and the environment.

We design resilient and productive systems because we adapt everything to its environment and thereby create diversity; we have also learned this from ecosystems.

We generate energy exclusively with recyclable systems from renewable sources. All people work under conditions that secure their rights and enable them to lead a good life. We have stopped striving for renunciation: instead of doing less of the wrong thing, we only do the right thing. We no longer fall from one crisis to the next because we have found interlocking solutions to our ecological, economic and social problems.

We are no longer neutral, but leave large positive footprints: ecologically, economically and socially. Now we humans are beneficial.

bunte Fäden, dahiner steht 'für eine bessere Welt', ich arbeite mit C2C
Circle shape colorful confetti against blue sky
white hands with earth in hand
two white children painting, C2c children congress
Nora and Tim from Cradle to Cradle NGO on stage, speaking with microphone
Personen sortieren bunte Post Its bei C2C Akademie



With C2C NGO we are accelerating the implementation of Cradle to Cradle: we are driving forward ideas that turn people into beneficials.

We bring organizations and people to rethink and redesign . We demand and promote an intact world. From the Berlin C2C LAB, our head office, training center and real laboratory for C2C innovations, we initiate groundbreaking C2C projects. We connect people from science, business, education, art, civil society and politics, that can change the way we think and act. We accompany and advise municipalities in their transformation to a C2C region. We organize workshops, panel discussions and specialist conferences, as well as the annual C2C Congress as the world’s largest C2C platform. We create educational materials and key personalities from politics and business ask us how they can better integrate C2C into their actions.

In order to realize our vision, we build alliances and cooperate in strong partnerships. Together with our volunteer work, we give impulses and encourage change. We spread our ideas and the fruits of our labor through all channels: we take a stand and get involved in public debates.


From the foundation as a non-profit organization in Lüneburg in 2012 to the first pioneering C2C lighthouse projects in Berlin in 2018. Here we show you the highlights of our work so far – to be continued…

Registration as a non-profit association

Together for a positive footprint. Under this motto, Nora Sophie Griefahn and Tim Janßen founded the Cradle to Cradle NGO in 2012. The goal: to bring the concept of Cradle to Cradle out of the professional debate and into society.

First volunteer regional group

In Lüneburg, volunteers join forces to form the first regional group of C2C NGO.
>> go to website

Foundation of the Head Office in Berlin

The work becomes more diverse, the tasks more. The office in Berlin makes it possible to provide better support for the volunteer regional groups and to organize the first C2C Congress.

1st C2C Congress

Understanding. Rethink. Design! This is the motto of the first International C2C Congress 2014 in Lüneburg. Over 600 participants attend the first ever major event on the topic of C2C under the patronage of Federal Environment Minister Dr. Barbara Hendricks and Prof. Dr. Sascha Spoun, President of Leuphana University. The congress is subsequently held annually and becomes a success story with up to 1,000 participants.

September 2015
First issue of the print magazine NÄHRSTOFF

The first issue of our print magazine NÄHRSTOFF is published. Since 2015, we have been summarizing our work about once a year, supplementing it with the basics about C2C and printing the whole thing - compostable, of course. The print edition is available on request at kommunikation(at) and the digital issue is available on our website.

August 2015
1st C2C Academy

In August 2015, the first C2C Academy takes place in Leipzig, which we organize at least once a year since then. The academy is the platform for networking, exchange and further education in the voluntary sector on various Cradle to Cradle topics.

March 2019
Renovation of the C2C LAB begins

In March 2019, renovation work begins on the future C2C LAB - the world's first comprehensive renovation according to C2C criteria. On 400 m2, C2C school of thought and design concept will be experienced in terms of content and practice as an educational center, NGO head office and real laboratory. The first major lighthouse project of C2C NGO shows how C2C can be applied in new construction, renovation and urban development.

September 2019
Opening of the C2C LAB

The grand opening of the C2C LAB on September 10, 2019 makes waves in the media and attracts 100 high-ranking guests: Regine Günther (Berlin Senator for the Environment) and Canan Bayram (Member of the German Parliament) give greetings; Florian Pronold (Parliamentary State Secretary, BMU) and Klaus Mindrup (Member of the German Parliament) give keynote speeches and Matthias Horx (trend & futurologist) gives the ceremonial address.

September 2019
C2C Summit: Construction & Architecture (first Summit)

September 11, 2019 marks the kick-off of a new series of events: The C2C Summit on a focus topic. Stakeholders from the respective industries, politicians, and representatives from science and civil society spend a day discussing selected topics and sharing their experiences in implementing C2C.

January 2020
6th C2C Congress

With around 1000 guests and 70 speakers from politics, business and NGOs, the 6th edition of the International Cradle to Cradle Congress is held in Berlin for the first time. Under the patronage of the Federal Minister for the Environment, Svenja Schulze, our motto "less bad is far from good" is the common thread running through more than 30 panels, lectures and interactive forums. v

April 2020
First LAB Talk

Due to Corona contact restrictions, we face the challenge of bringing our formats, which thrive on exchange, into the virtual world. The first LAB Talk with a member of the parliament Delara Burkhardt, produced and streamed live by our newly established Digital Production team, shows that we have succeeded in this step.

September 2020
6th C2C Akademy

Our now 6th C2C Academy will take place for the first time completely digitally from September 21 - 26, 2021 due to the Corona pandemic. However, this also allows us to open up the format to more people.

December 2020
The C2C Regions network launches

The C2C Regions network starts and registers the first members. It offers municipalities, NGOs and companies that want to shape their region for the future with C2C a platform and opportunity for exchange.

July 2021

For the 5th issue of our print magazine NÄHRSTOFF, we are completely revamping the design and also turning the content upside down. But one thing remains the same: The magazine provides a deep insight into the C2C world and offers information about our work for a positive footprint.

7th C2C Congress in three stages

The Corona pandemic makes major events difficult to impossible. But canceling our biggest event is out of the question for us. So we are holding the 7th International Cradle to Cradle Congress 2021 as a hybrid event: With three stages in three cities, on-site and digital. In July in Freiburg on scaling C2C in industry, in September purely digitally from Berlin on plastics of the future and in October in Mönchengladbach on municipal development according to C2C. A total of around 800 people are taking part in the congress under the patronage of Federal Environment Minister Svenja Schulze, both on site and digitally.

June 2021
Partner organization of the EU project New European Bauhaus

The New European Bauhaus (NEB) project is initiated by the President of the EU Commission, Ursula von der Leyen. The goal? To fill the EU's Green Deal with content by allowing all Europeans to submit ideas, examples and challenges. We share many of the substantive goals, become an official partner organization and get involved in shaping the NEB.DasProjekt

October 2021
Campaign #SoGehtMorgen

Climate change, species extinction, raw materials crisis, corona pandemic ... A look at the world shows: We need a master plan now, otherwise we will continue to stumble from one crisis to the next. Together with a broad network from the C2C community, we are formulating the following in time for the 2021 federal elections ten opportunities for a C2C circular economy together with a broad network from the C2C community, addressed to the new federal government, just in time for the 2021 federal elections, and handing over the briefing to numerous MdBs (Members of the german parliament) directly in front of the Bundestag.

January 2022
First educational materials go online

Educational work for Cradle to Cradle has always been our core task as an NGO. Educational work for Cradle to Cradle has always been our core task as an NGO. Our Education Department is now bringing the concept into schools - through modular educational materials as an integral part of lessons at different grade levels.

August 2022
Gruppe Menschen vor Bäumen
Cradle Camp
Four days full of exchange, workshops, summer atmosphere and above all a lot of Cradle to Cradle: that is the Cradle Camp! C2C NGO volunteers and all other C2C enthusiasts came together in Berlin in preparation for Labor Tempelhof. There, the participants were prepared for their role as C2C ambassadors and learned more about Cradle to Cradle and the project Labor Tempelhof.
August 2022
Logo Labor Tempelhof
Labor Tempelhof

Die Ärzte and Die Toten Hosen provided three concerts in August 2022 at Tempelhof Airport in Berlin for a laboratory. The aim is to show how Cradle to Cradle solutions that already exist today can lead to a circular economy that offers economic, ecological and social added value for society as a whole - and how, derived from this, major events with a positive impact on people and the environment can also become standard.
>> go to website

June 2023
LOOP - the digital C2C learning tool

LOOP is a learning excursion, experimental laboratory and creative workshop all in one.

The goal is to find answers together for the pressing environmental issues of our time and to empower young people to think about challenges themselves and to help shape solutions.

>> more info about LOOP

September 2023
C2C Congress Publikum und Bühne
International C2C Congress back in Berlin

Back in Berlin: The 8th International C2C Congress at TU Berlin was filled with exciting discussions about the state of the circular economy, inspiring best practices from C2C companies and those on their way there, scientific discourses and plenty of opportunities for exchange and networking.

>> To the C2C Congress website

September 2023
Berlin, you are so cradleable! - Start of the C2C event series

As part of the C2C event series with twelve decentralized events in the Berlin districts, we are discussing proposed solutions for a circular economy according to Cradle to Cradle. Be inspired by what the Berlin of tomorrow could look like! Because Berlin, you are so cradleable!

>> To the event series

December 2023
Numerous publications: Position papers, studies, guidelines

2023 we have published a lot: How can C2C be implemented in schools? How can C2C be incorporated into public procurement? And what options are there for organizing major events in a circular way? We have covered all of these and many other topics in a wide range of publications.

>> publications


Finance & Annual Report

We love transparency.
Therefore you will soon find our financial reports here.

Annual report 2021 (GER)

Annual report 2020 (GER)

Design concept (C2C Design concept)

Humans need to rethink and redesign to solve our climate and resource problem in the long run. The C2C design concept is the guide for this. It is modeled after natural cycles in which any waste is a nutrient for something new. Cradle to Cradle takes into account all ecological, economic and social aspects of products as early as the design phase. Only recyclable materials that are suitable for the specific purpose of a product are used.

Svenja Damberg

Svenja Damberg ist seit 2021 Senior Research Fellow am Institut für Technologie- und Innovationsmanagement der TU Hamburg. Sie ist außerdem Projektmitarbeiterin für Technologie- und Innovationsmanagement und Wissenstransfer bei der Cradle to Cradle-Modellregion Nordostniedersachsen. Damberg schrieb ihre Dissertation im Bereich Kundenmanagement bei Genossenschaftsbanken an der TU Hamburg. Zuvor war sie u.a. beim Recruiting-Technologie-Startup RelinkLabs in Kopenhagen im Bereich Marketing und Kommunikation tätig. Sie hat Business and Development Studies an der Copenhagen Business School studiert.



Svenja Damberg has been a Senior Research Fellow at the Institute for Technology and Innovation Management at TU Hamburg since 2021. She is also a project associate for technology and innovation management and knowledge transfer at the Cradle to Cradle Model Region Northeast Lower Saxony. Damberg wrote her dissertation in the field of customer management at cooperative banks at the TU Hamburg. Previously, she worked in marketing and communications at the recruiting technology startup RelinkLabs in Copenhagen, among others. She studied Business and Development Studies at Copenhagen Business School.

Christoph müller

Christoph Müller arbeitet seit 2015 für die Gebäudewirtschaft der Hansestadt Lüneburg. Dort leitet er aktuell das C2C-inspirierte Probeprojekt „Neubau Hort Anne-Frank-Schule“. Zuvor hat er 9 Jahre als Bauleiter und in der Projektentwicklung gearbeitet. Müller ist gelernter Tischler und Bauingenieur.


Christoph Müller has been working for the building management department of the Hanseatic City of Lüneburg since 2015. There, he is currently managing the C2C-inspired trial project „Neubau Hort Anne-Frank-Schule“. Prior to that, he worked for 9 years as a construction manager and in project development. Müller is a trained carpenter and civil engineer.

Andreas Thürmer

Andreas Thürmer ist seit 2020 Leiter der Geschäftseinheit Strategie, Organisation und Kommunikation bei der Berliner Stadtreinigung. Er ist seit 2001 bei der BSR und war dort als Leiter des Vorstandsbüro, Prokurist und Leiter der Organisationsentwicklung tätig. Zuvor war Thürmer interner Berater bei Audi. Er ist außerdem Vorstandsvorsitzender der Entsorgergemeinschaft der deutschen Entsorgungswirtschaft e.V. und Mitglied im Umweltausschuss der IHK Berlin. Thürmer ist Diplom-Ingenieur und hat an der Universität Stuttgart Maschinenbau studiert.


Andreas Thürmer has been head of the Strategy, Organization and Communication business unit at Berliner Stadtreinigung since 2020. He has been with BSR since 2001, where he served as head of the board office, authorized signatory and head of organizational development. Prior to that, Thürmer was an internal consultant at Audi. He is also chairman of the board of the Entsorgergemeinschaft der deutschen Entsorgungswirtschaft e.V. and a member of the environmental committee of the Berlin Chamber of Industry and Commerce. Thürmer holds a degree in engineering and studied mechanical engineering at the University of Stuttgart.

Peter Kurth

Peter Kurth ist seit 2008 geschäftsführender Präsident des Bundesverbands der Deutschen Entsorgungs-, Wasser- und Rohstoffwirtschaft. Seit 2020 ist der studierte Jurist zudem Präsident des europäischen Entsorgerverbands FEAD. In seiner beruflichen Laufbahn war Kurth unter anderem für die Deutsche Bank und die Kreditbank als Jurist tätig und war von 2001 bis 2009 Vorstandsmitglied des Berliner Entsorgungsunternehmens Alba. Zuvor begleitete Kurth unterschiedliche politische Ämter. Ab 1994 war er Staatssekretär im Berliner Finanzsenat und ab 1999 Finanzsenator. Er war zudem Aufsichtsrat in unterschiedlichen Kreditunternehmen wie der Bankgesellschaft Berlin sowie der Landesbank Berlin und Abgeordneter des Abgeordnetenhauses Berlin.


Peter Kurth has been Executive President of the Federal Association of the German Waste Management, Water and Raw Materials Industry (BDE) since 2008. Since 2020, the law graduate has also been President of the European Waste Management Association FEAD. In his professional career, Kurth has worked as a lawyer for Deutsche Bank and Kreditbank and was a member of the executive board of the Berlin waste management company Alba from 2001 to 2009. Prior to that, Kurth held various political offices. From 1994, he was State Secretary in the Berlin Finance Senate and from 1999 Finance Senator. He was also a member of the supervisory board of various credit companies such as Bankgesellschaft Berlin and Landesbank Berlin, and a member of the Berlin House of Representatives.

Lorena Zangl

Lorena Zangl arbeitet seit 2017 in der hauptamtlichen Geschäftsstelle der C2C NGO. Seit 2020 leitet sie als Referentin den Bereich Kommunale Entwicklung und betreut in dieser Funktion das Netzwerk C2C Regionen. Außerdem ist sie für die Erarbeitung eines Leitfadens für kommunale Beschaffung und C2C verantwortlich. Sie studierte “Political & Social Studies” und “Öffentliches Recht” an der Universität in Würzburg und absolvierte den Master Global Change Management an der Hochschule für nachhaltige Entwicklung in Eberswalde. Zuvor sammelte sie Arbeitserfahrungen im Stiftungsbereich, verschiedenen NGOs für Umwelt und Soziales und Bundespolitik.

Lorena Zangl has been working for C2C NGO since 2017. Since 2020, she has been head of the Municipal Development department and, in this capacity, oversees the “C2C Regions Network”. She is also responsible for the development of a guide for municipal procurement and C2C. She studied “Political & Social Studies” and “Public Law” at the University of Würzburg and completed a Master’s degree in Global Change Management at the University for Sustainable Development in Eberswalde. Previously, she gained work experience in the foundation sector, various environmental and social NGOs and federal politics.

Ilse Beneke

Ilse Beneke leitet seit 2016 die Kompetenzstelle für nachhaltige Beschaffung beim Beschaffungsamt des Bundesministeriums des Innern und für Heimat, wo sie sich mit der praktischen Implementierung von Nachhaltigkeitskriterien in öffentlichen Auftragsvergaben befasst. Zuvor war sie Referentin im Ministerium für Umwelt, Gesundheit und Verbraucherschutz des Landes Brandenburg. Beneke ist Volljuristin mit Spezialisierung Umweltrecht und hat 2013 berufsbegleitend ihren Master zum Thema “Responsible Management” abgeschlossen.



Ilse Beneke has headed the Competence Center for Sustainable Procurement at the Procurement Office of the Federal Ministry of the Interior and Home Affairs since 2016, where she deals with the practical implementation of sustainability criteria in public procurement. Previously, she was an advisor at the Ministry of the Environment, Health and Consumer Protection of the State of Brandenburg. Beneke is a fully qualified lawyer specializing in environmental law and completed her master’s degree in “Responsible Management” in 2013 while working.

Dagmar Schulz

Dagmar Schulz ist seit 2021 erste Landrätin des Landkreises Lüchow-Dannenberg. Sie ist seit 2003 im Landkreis Lüchow-Dannenberg tätig und hat dort unter anderem die Fachbereiche Kultur, Kreisarchiv und Museen, kaufmännisches Gebäudemanagement, Straßenverkehr sowie Jugend-Familie-Bildung geleitet.


Dagmar Schulz has been the first female district administrator of the Lüchow-Dannenberg district since 2021. She has worked in the district of Lüchow-Dannenberg since 2003 and has headed the departments of culture, district archives and museums, commercial building management, road traffic and youth-family-education, among others.


Bernhard Reger leitet seit Mai 2021 die Bereiche Marketing und Unternehmenskommunikation der Leipfinger-Bader Ziegelwerke. Zuvor war er in unterschiedlichen Kommunikations- und Marketingagenturen tätig, unter anderem als Mitgründer und Teilhaber der Agentur Synektar und Inhaber und Gründer von reger’s Design- und Kommunikationsagentur. Reger ist gelernter Werbekaufmann und Diplom-Kommunikationswirt.


Bernhard Reger has been in charge of marketing and corporate communications at Leipfinger-Bader Ziegelwerke since May 2021. He previously worked in various communications and marketing agencies, including as co-founder and partner of the Synektar agency and owner and founder of reger’s design and communications agency. Reger is a trained advertising merchant and holds a degree in communications.

Vanja schneider

Vanja Schneider ist seit 2020 Geschäftsführer und Strategieverantwortlicher der Moringa GmbH. Zuletzt war er als Geschäftsführer der Interboden-Gruppe unter anderem für das Projekt The Cradle in Düsseldorf verantwortlich. Schneider ist Bau- und Wirtschaftsingenieur und seit 1991 in der Immobilienwirtschaft, vor allem in der Immobilienentwicklung, tätig.

Vanja Schneider has been Managing Director and Head of Strategy at Moringa GmbH since 2020. Most recently, as Managing Director of the Interboden Group, he was responsible, among other things, for The Cradle project in Düsseldorf. Schneider is a civil and industrial engineer and has been working in the real estate industry, primarily in real estate development, since 1991.

sören bartol

Sören Bartol ist seit Dezember 2021 Parlamentarischer Staatssekretär im Bundesministerium für Wohnen, Stadtentwicklung und Bauwesen. Zuvor war er von 2013 bis 2021 stellvertretender Vorsitzender der SPD-Bundestagsfraktion. Seit 2002 ist Bartol direkt gewähltes MdB für den Wahlkreis Marburg-Biedenkopf. Er ist seit vielen Jahren für die Themen Bau, Wohnen und Stadtentwicklung zuständig, u.a. als Arbeitsgruppensprecher im Bundestag. Bartol ist Diplom-Politologe.

Sören Bartol has been Parliamentary State Secretary at the Federal Ministry for Housing, Urban Development and Building since December 2021. He was previously deputy chairman of the SPD parliamentary group from 2013 to 2021. Since 2002, Bartol has been a directly elected Member of Parliament for the constituency of Marburg-Biedenkopf. He has been responsible for the topics of construction, housing and urban development for many years, including as a working group spokesman in the Bundestag. Bartol holds a degree in political science.

Dr. hans georg brendle

Dr. Hans Georg Brendle ist seit 1997 Research & Development Manager bei der J. Rettenmaier & Söhne GmbH+Co KG, zu der unter anderem JRS Petcare gehört. Er ist Diplom-Chemiker und hat an der Eberhard Karls Universität Tübingen promoviert. Er beschäftigt sich unter anderem mit der mechanischen und chemischen Verarbeitung von pflanzlichen Zellstoffen für Anwendungen in Pharma, Lebensmitteln und Technik.


Dr. Hans Georg Brendle has been Research & Development Manager at J. Rettenmaier & Söhne GmbH+Co KG, which includes JRS Petcare, since 1997. He holds a degree in chemistry and a doctorate from Eberhard Karls University in Tübingen. Among other things, he is involved in mechanical and chemical processing of cellulosic plant material for pharmaceutical, food and technical applications.

Thomas Bader

Thomas Bader ist Gründer und Geschäftsführer der Leipfinger-Bader GmbH sowie Gründer & Geschäftsführender Gesellschafter der Bader Media GmbH. Darüber hinaus hält Bader diverse Aufsichtsrats- und Vorstandspositionen inne, beispielsweise beim Bundesverband der Deutschen Ziegelindustrie e.V. Er ist Diplom-Ingenieur und Diplom-Kaufmann.

Thomas Bader is founder and managing director of Leipfinger-Bader GmbH as well as a founder & managing partner of Bader Media GmbH. In addition, Bader holds various supervisory board and executive board positions, for example at the Bundesverband der Deutschen Ziegelindustrie e.V. He holds a degree in engineering and a degree in business administration.

Dipl. agr. Ing.
Aloys Oechtering

Aloys Oechtering ist seit 1989 Bereichsleiter im Unternehmensbereich organische Abfälle, Biomasse und Bioenergie der Unternehmensgruppe Remondis. Er ist außerdem Geschäftsführer verschiedener Spezialgesellschaften für organische Abfälle, wie Remondis SmartRec, und Aufsichtsratsmitglied verschiedener Beteiligungsgesellschaften mit kommunalen Partnern. Oechtering ist in diversen Verbänden, wie beispielsweise dem Entsorgerverband BDE tätig. Er studierte Agrarwissenschaften an der TU München und der Universität Göttingen.




Aloys Oechtering has been head of the organic waste, biomass and bioenergy division of Remondis Group since 1989. He is also managing director of various specialist companies for organic waste, for example Remondis SmartRec, and a member of the supervisory boards of various associated companies with municipal partners. Oechtering is active in associations such as the BDE. He studied agricultural sciences at the Technical University of Munich and the University of Göttingen.

Manuel Ehlers

Manuel Ehlers ist seit 2016 Head of Sustainable Property der Triodos Bank. Seit 2021 ist Ehlers außerdem Mitglied im Immobilienbeirat der DGNB. Zuvor war er als Projektentwickler viele Jahre mit der Konzeption und Realisierung von Immobilienprojekten in Berlin betraut. Er ist gelernter Wirtschaftsingenieur mit einer Spezialisierung auf nachhaltiges Bauen.


Manuel Ehlers has been Head of Sustainable Property at Triodos Bank since 2016. Since 2021, Ehlers has also been a member of the DGNB’s Real Estate Advisory Board. Previously, he worked for many years as a project developer and was in charge of the conception and realization of real estate projects in Berlin. He is a trained industrial engineer specialized in sustainable construction.

André Siedenberg

André Siedenberg ist seit 2014 bei der Kommunal Agentur NRW GmbH in Düsseldorf als Berater für kommunale Beschaffung tätig. Seit 2015 ist er außerdem als Rechtsanwalt zugelassen. Er vertritt öffentliche Auftraggeber in Nachprüfungsverfahren, hält Seminare zum Vergaberecht und unterstützt Nichtregierungsorganisationen in allen Fragen der nachhaltigen Beschaffung. Zuvor war er im Ministerium für Wirtschaft, Energie, Industrie, Mittelstand und Handwerk des Landes Nordrhein-Westfalen im Referat für Vergaberecht tätig. Siedenberg studierte Rechtswissenschaften und Europäisches Recht an der Julius-Maximilians-Universität Würzburg.


André Siedenberg has been working as a consultant for municipal procurement at Kommunal Agentur NRW GmbH in Düsseldorf since 2014. He has also been admitted to the bar in 2015. In this capacity, he represents public contracting authorities in review proceedings, holds seminars on public procurement law, and supports NGOs in all matters of sustainable procurement. Previously, he worked at the Ministry for Economic Affairs, Energy, Industry, SMEs and Trade of the State of North Rhine-Westphalia in the department for public procurement law. Siedenberg studied law and European law at the Julius Maximilian University of Würzburg.


Natalie Rottmann-Boos ist seit 2020 als Projektmanagerin in der Kompetenzstelle für sozial verantwortliche Beschaffung bei Immobilien Bremen tätig. Dort unterstützt sie den kommunalen Einkauf bei Ausschreibungen und bringt eine sozial-ökologische und zirkuläre Beschaffung voran, beispielsweise mit dem Projekt „SDG 12: Fair handeln und beschaffen `Made in Bremen´“. Zuvor war Rottmann-Boos zehn Jahre lang als Projektmanagerin im Offshore-Windkraftbereich tätig.


Natalie Rottmann-Boos has been working as a project manager in the competence center for socially responsible procurement at Immobilien Bremen since 2020. She supports the purchasing department in tenders and promotes social-ecological and circular procurement, for example with the project “SDG 12: Fair trade and procurement `Made in Bremen´”. Before that, Rottmann-Boos worked as a project manager in the offshore wind power sector for ten years.


Sybille Mai ist Leading Consultant und Standortverantwortliche in Berlin für die EPEA GmbH, mit Schwerpunkt Cradle to Cradle im Bau. Zwischen 2008 und 2015 baute sie bei Drees & Sommer in Berlin die Beratungskompetenzen zur Nachhaltigkeit auf und begleitete als DGNB-Auditorin und LEED-AP eine Vielzahl von Green-Building-Zertifizierungen. Weitere Stationen führten die Diplom-Wirtschaftsingenieurin als Abteilungsleiterin für Immobilienmanagement und Geländeentwicklung zur Messe Berlin sowie in die verantwortliche Projektsteuerung.



Sybille Mai is Leading Consultant and Site Manager for EPEA GmbHs Berlin office, with a focus on Cradle to Cradle in construction. Between 2008 and 2015, she built up sustainability consulting expertise at Drees & Sommer in Berlin and, as a DGNB auditor and LEED-AP, accompanied a large number of Green Building certifications. Further positions led her to Messe Berlin as head of department for real estate management and site development as well as into responsible project management. Mai holds a diploma degree in industrial engineering.


Nora Sophie Griefahn ist Co-Gründerin und geschäftsführende Vorständin von Cradle to Cradle NGO. Die Umweltwissenschaftlerin koordiniert die politische und wissenschaftliche Arbeit der 2012 gegründeten gemeinnützigen Organisation und treibt ein Umdenken in Wissenschaft, Politik, Bildung und Gesellschaft voran, das mehr als nur Klimaneutralität zum Ziel hat. Sie ist als Expertin für Cradle to Cradle und eine klimapositive Zukunft gefragt und spricht darüber auf Veranstaltungen sowie als Gastkommentatorin oder Gesprächspartnerin in Printmedien und digitalen Formaten.  Darüber hinaus lehrt Griefahn an verschiedenen deutschen Hochschulen. 



Nora Sophie Griefahn is executive managing director and co-founder of Cradle to Cradle NGO. She majored in Environmental Sciences at Leuphana University Lüneburg and Goethe University Frankfurt with stays at University of Natural Resources and Life Sciences in Vienna and University of Copenhagen. As the only German, she was elected as a GreenBiz’ 30 Under 30 inspiring young leader in 2018. 

In 2012, she co-founded Cradle to Cradle NGO (C2C NGO) with Tim Janssen in order to establish Cradle to Cradle principles in economy and politics. C2C NGO connects the fields of business, education, politics, and civil society by creating networking platforms and educational formats. 

As co-executive director, Nora coordinates the NGOs scientific, political and educational work and actively shapes a new understanding of material health and circularity. Nora is a sought-after expert, speaker and panelist on Circular Economy and Cradle to Cradle with a broad expertise in chemical construction, healthy product design, and the coherences between climate change and resource scarcity. Furthermore, she is a member of various scientific advisory councils and a lecturer at the Technical University of Berlin.


Tim Janßen ist geschäftsführenden Vorstand und Mitbegründer der gemeinnützigen Cradle to Cradle NGO. Er studierte Wirtschaftswissenschaften an der Leuphana Universität Lüneburg und der Dualen Hochschule Baden-Württemberg. Dabei lag sein Fokus auf Gründung, Innovationsmanagement und verantwortungsvollem Wirtschaften. Auslandsaufenthalte führten ihn an das Athlone Institute of Technology in Irland, sowie die Universität Wien im Rahmen eines PROMOS- Stipendiums des DAAD.

Aus der Idee heraus, die Cradle to Cradle Denkschule und das Designkonzept in die Mitte der Gesellschaft zu tragen, gründete Tim Janßen 2012 C2C NGO mit und leitet diese seither als Co-Geschäftsführer. Dabei entwickelt er Strategien, um eine maximale Wirkung der Organisation auf die Gesellschaft zu erreichen, und gestaltet aktiv das Wachstum der noch jungen, stetig größer werdenden Bewegung.

Tim Janßen hält als Redner zahlreiche Fachvorträge auf nationalen und internationalen Konferenzen und Fachtagungen und gibt sein Wissen um Cradle to Cradle an Fachpublikum und Interessierte weiter. Des Weiteren lehrt er als Hochschuldozent an der Dualen Hochschule Baden-Württemberg (DHBW), Leuphana Universität Lüneburg, HS Mittweida sowie der TU Berlin.


Tim Janßen is executive director and co-founder of Cradle to Cradle NGO. He majored in Business, Entrepreneurship, Innovation and Leadership at Leuphana University Lüneburg and Duale Hochschule Baden-Württemberg (DHBW). In 2012, he co-founded Cradle to Cradle NGO (C2C NGO) with Nora Sophie Griefahn. C2C NGO connects the fields of business, education, politics, and civil society by creating networking platforms and educational formats. In 2019, the NGO established the C2C LAB in Berlin: the world’s first renovation in an existing building based on Cradle to Cradle criteria. Serving as an educational center, NGO head office, and real-world laboratory, it is here where the C2C school of thought and design concept become reality. As co-executive director, Tim develops strategies to maximize the organization’s impact on society and actively shapes the growth of this young, ever-growing movement. He is a sought-after expert for Cradle to Cradle, Circular Economy and Social Entrepreneurship. He regularly holds keynotes and partakes as panelist at national and international conferences. Furthermore, Tim is a lecturer at DHBW, Leuphana University Lüneburg and TU Berlin.

dr. andreas bukowski

Andreas Bukowski ist seit 2020 Erster Bürgermeister der Gemeinde Haar. Seit 2019 ist er außerdem Vorsitzender des CSU Ortsverbands Haar und des Gewerbeverbands Haar Trudering. Zuvor war er zehn Jahre lang als Leiter Marketing & Vertrieb und als Geschäftsführer der Styx Naturcosmetics GmbH tätig. Bukowski ist promovierter Dr. Phil. und hatte zwischen 2009 und 2013 einen Lehrauftrag an der Ludwig-Maximilians-Universität München.



Andreas Bukowski has been First Mayor of the Bavarian municipality of Haar since 2020. Since 2019, he has also been Chairman of the local branch of the Christian Social Union party in Haar and the Haar Trudering trade association. He previously was Head of Marketing & Sales and Managing Director of Styx Naturcosmetics GmbH for ten years. Mr. Bukowski holds a PhD and was a lecturer at Ludwig Maximilian University in Munich between 2009 and 2013.


Michael Behnke ist seit 2004 General Manager der Markenagentur Belly Button Paris. Seit 2021 vertritt er außerdem ehrenamtlich die Plant Litter Association (PLA) in Deutschland und Frankreich, die sich europaweit dafür einsetzt, Verbraucher*innen und Regierungsorgane auf das Umweltproblem mineralischer Katzenstreu aufmerksam zu machen. 2018 initiierte Behnke eine vergleichende Life-Cycle-Assessment-Studie verschiedener Arten von Katzenstreu, die erstmals das Umweltproblem Mineralstreu wissenschaftlich untersuchte. Er unterrichtet außerdem seit 2014 an der American University of Paris. Zuvor war er unter anderem für die Publicis Group, Young & Rubicam und TBWA Paris tätig.



Michael Behnke has been the General Manager of branding and brand communication agency Belly Button Paris since 2004. Since 2021, he is the honorary representative of the Plant Litter Association (PLA) in Germany and France. The association works across Europe, raising awareness among consumers and governmental bodies about the environmental problem of mineral cat litter. In 2018, Behnke initiated a comparative life-cycle assessment study of different types of cat litter, the first to scientifically examine the environmental problem of mineral litter. He also has been a lecturer at the American University of Paris since 2014. Previously, he worked for the Publicis Group, Young & Rubicam and TBWA Paris, among others.

Vanja schneider

Biografie Text Bei der Cradle to Cradle Certified™-Zertifizierung, die das gemeinnützige Products Innovation Institute (C2CPII) vornimmt, werden verschiedene Faktoren und Ebenen der Herstellung, Nutzung und der Wiederverwertung bewertet. Es gibt fünf Abstufungen in der Zertifizierung von Basic über Bronze, Silber, Gold bis hin zu Platin, welches den höchsten Produktstandard kennzeichnet. Dabei werden die fünf Faktoren Materialgesundheit, Wiederverwendbarkeit, Nutzung erneuerbarer Energien und Kohlenstoffmanagement, Wasserqualität sowie Sozialstandards betrachtet. Weltweit gibt es aktuell knapp 300 C2C-Unternehmen mit über 8.000 C2C-Produkten.