GmbH Limited
works with
organisations to
their cultural identity.

We bring
strategic change
to create a
sustainable culture
at work.

We define social sustainability as the recognition of the humane quality of the relationship between an organisation and its people.
Social sustainability represents an explicit agreement between employer and employee:
The leadership of an organisation recognises that central to its commitment is to provide the employee with a purpose-led work environment and the ability to learn, grow, share and benefit from their time at work. The result is a value-aligned social system rooted within the people of the organisation.

Our term for the work we do and the outcome we create is “sustainable culture.”
The culture informs all operational actions and decision making and provides the foundation for a genuine and recognisable corporate identity.

We guide our clients in how to identify, develop and embed their culture, including its management, measurement and communication.


GmbH Limited offers a combination of consulting and training services including advisory on ESG-strategy, branding and communications.



To create a sustainable culture that is healthy, respectful and inventive, we believe that trust between people is the vital element.

  1. We trust in kindness and transparency.
  2. We trust in integrity, responsibility and self-management.
  3. We trust in people’s autonomy like we trust in togetherness.
  4. We trust in healthy soil and eating plants.
  5. We trust in culture being lived, not launched.
  6. We trust in treating the cause rather than the symptoms.
  7. We trust in accountability and we trust in positive change.
  8. We trust in science as much as we trust in curiosity for the other.
  9. We trust in inclusivity and LGBTQIA+ equality.
  10. We trust in stability, practicality and functionality.

And we trust that you will trust us.

GmbH Limited is led by its founders and co-principles, Mia Castenskjold and Stefan Zschernitz. Over the last two decades, they have both lived in, and worked globally across, many different cultures and industries.

They acquired, along this journey, not only many languages, but also the hard-won knowledge of how to successfully navigate and adjust to different organisational cultures.

As leaders at organisations they have worked to design and build sustainable culture practices, policies and programming that serve the whole workplace community.

Their experience has taught them to deeply understand the complexity that organisations represent and they skillfully guide their clients to recognise the power structures and dynamics existing within their organisations. Throughout this process, they enable clients to empower their people to see their individual strengths, skills and abilities.


Send an email to Mia or Stefan or visit the GmbH Limited office in The Rochelle