The private sector in the quinary sector is typically made up of large multinational corporations, as well as smaller businesses and startups that are focused on developing and commercializing new technologies and innovations.

The public sector is made up of government agencies, departments, and institutions that are responsible for providing a range of services and benefits to the public, including education, healthcare, social services, and infrastructure.

The fourth sector is a concept that refers to the emergence of a new approach to economy and enterprise that combines the best of the public sector (governments), private sector (for-profit businesses), and third sector (non-profits).

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.