Welcome to The Tenth Letter. We’re a specialised agency in Aotearoa New Zealand dedicated to sustainability and social impact - and we don’t just talk about change; we make it happen. When you work with us, you're partnering with experts who understand unique local challenges and are committed to creating lasting measurable impact.
We help organisations navigate the complex world of sustainability, impact, and communication. Our focus is on building strategies that align with your values, strengthen your purpose, and deliver meaningful results for your organisation and the communities you serve.
No two organisations are the same, so our approach is always tailored. Whether you’re a business, non-profit, or public sector entity, we design solutions that turn intent into action — building capability, deepening stakeholder trust, and driving long-term positive outcomes for people and planet.
We’re here to support your journey towards a more sustainable, responsible, and future-focused organisation. Let’s collaborate to bring your vision to life and make a genuine difference.