There is widespread and growing support and requirement for researchers and larger organisations to collaborate with communities. This ensures that social, educational, or health programmes are relevant and acceptable and address the needs of groups that experience inequity. There is limited research about the processes and approaches that impact successful collaboration. The aim of this study was to identify the best-practice processes used to develop and sustain collaborative partnerships between community members and formal organisations in Aotearoa New Zealand. Using a qualitative case study methodology and guidance from our community advisory group, we selected three effective collaborations with groups that experienced inequity in Aotearoa New Zealand. We examined these by reviewing their publicly available documents and conducting focus group discussions and interviews with key stakeholders. We coded and analysed transcriptions thematically to develop case study summaries of findings and then conducted cross-case analysis to identify themes inherent in the data. Seven themes emerged from the data: (1) work together under Te Tiriti to ensure that collaborations are built on the articles of this founding document of Aotearoa New Zealand; (2) start before the beginning by forming strong relationships with diverse and representative community members; (3) walk the talk by using critically reflexive processes built on shared values and equal power relations; (4) use pencils not pens to implement ensuring an iterative project process; (5) recognise all contributions and especially the value of lived experience and local knowledge; (6) journey at a pace that allows all to participate; and (7) listen twice, talk once to give priority to hearing quieter voices. These seven practices can be utilised by other collaborative initiatives to increase genuine and power-shared participation. These participatory processes can make sure that collaborative projects respect local knowledge, indigenous culture, and respond iteratively to community needs.