In the quinary sector of the economy, which refers to the highest level of the knowledge-based economy that is driven by research, innovation, and technology, the NGO sector plays a key role in supporting and promoting economic growth and development. The NGO sector is made up of non-governmental organizations, such as charities, foundations, and advocacy groups, that are committed to addressing social and environmental issues and promoting the public good.

In the quinary sector, the NGO sector is responsible for supporting and promoting research and development, and for providing funding and other resources to researchers and innovators. The NGO sector is also responsible for advocating for policy and regulatory changes that promote social and environmental sustainability, and for raising awareness about important issues and challenges facing society.

The NGO sector in the quinary sector is typically made up of a wide range of organizations, including international NGOs, national NGOs, and local NGOs. These organizations are funded through a variety of sources, including donations, grants, and sponsorships, and they operate in a wide range of fields, including healthcare, education, environment, and human rights.