The core activity of AMS Arbeitsmarkt-Services AG encompasses three main areas:
1. **Administration of guarantees**: The Central Guarantee Administration Office Switzerland (ZKVS) manages guarantees secured under collective labor agreements (GAV).
2. **Collection of enforcement cost contributions**: The Central Collection Office Switzerland (ZIS) is responsible for collecting enforcement cost contributions owed by foreign employers for employees working in Switzerland.
3. **Consulting services for employer associations and joint committees**: The company provides consulting, training, and lectures on topics such as collective labor agreements, wage negotiations, and social partnership.