Watch as our Chief Conciliator explains what Acas actually does in a workplace dispute. About Acas Acas (the Advisory, Conciliation and Arbitration Service) aims to improve organisations and working life by promoting better employment relations. Acas provides information, advice and guidance to both employers and employees. In addition to our free Helpline and advice articles, Acas offers a wide range of training to businesses of all sizes. Training can be tailored to the needs of your organisation, and we can deliver the training at our location or yours.