The International Council on Combustion Engines – CIMAC – cordially invites the industry to the 31st CIMAC Congress from May 19 to 23 in Zurich, Switzerland. The 2025 Congress will once again bring together leading experts from engine manufacturers, component and system suppliers, rail, marine and power plant operators and users, technical universities, classification societies, and oil companies around the globe. The presentations will highlight the latest developments in products and technologies and the value that they bring to the customer; they will elaborate on the scientific research that creates the foundation for the next generation of engines and address the needs of the markets to ensure a sustainable, environmentally and economically sound future. Additionally, the Congress offers a unique opportunity to generate business and build lasting networks. In panel discussions and keynote speeches, we will be challenged to broaden our perspectives. Customer benefits and value will be strongly emphasized during the Congress. This is clearly an opportunity that will help make the right decisions for the future.