During the last decade, a number of EU legal regulations have been adopted in different areas to make the EU space more accessible for persons with disabilities and older persons. European accessibility standards and funding opportunities have been put into place to support their implementation in the environment built and in the information and communication technologies (ICT) and disseminate the Design for All approach. The primary rationale for these steps involves the goals of social cohesion and inclusion, often overshadowing the market arguments relevant to business stakeholders. Their fullest (so far) combination has been adopted in the European Accessibility Act. The analysis, from a Poland's perspective as a Member State, presents how important it is to involve business entities in the processes of planning, creating, implementing and evaluating the transposing legal provisions and tools for increasing the level of accessibility of space, product and service.