Since 2002 we have gained a great deal of expertise about the effects of shocking events. Not only for citizens, but also for professionals. There is a growing awareness that disasters and crises can have complex and long-lasting consequences. We know that most people are self-reliant and resilient to deal independently with the consequences of a shocking event. Well organised and accessible psychosocial support strengthens the natural self-reliance and resilience of those affected. Impact's core business is knowledge development and knowledge sharing. We are 'close to the field': we look at which questions there are and from what experiences we can learn. Our knowledge about high-quality psychosocial care is made available in the form of guidelines, manuals, checklists or apps for organisations that have a task in aftercare to those affected or to professionals. If you have any questions or remarks, please do not hesitate to contact us. Our staff is ready to answer your questions and see how we can support you. This way we can work together for a safe and healthy society.