The core activity of HEKS is humanitarian aid and development cooperation, particularly in the areas of:
* Basic care (food, transport, clothing, hygiene)
* Support for labour market integration
* Flight and migration
* Inclusion
* Climate justice
* Right to land and food
* Economy and human rights
* Strengthening civil society and peace.
The company offers various services, such as interpreting services, legal advice, language courses and housing support, and works with church communities, foundations and authorities to support socially disadvantaged people.