All business organisations can be classified into two types; Public sector organisations are owned and controlled by governments whilst private sector organisations are owned and controlled by private individuals.
Within the private sector organisations can be classified further.
1. For-profit (commercial) organisations.
2. For-profit social enterprises
PPP definition from Wikipedia
3. Non-profit social enterprises
These are also known as Non-Governmental Organisations (NGO’s) and include charities and pressure groups.