This report presents new insights on trends in business R&D performance and funding, drawing on the micro-aggregated R&D and tax relief statistics collected for 21 OECD countries as part of the OECD microBeRD project. Micro-aggregated statistics provide an important input for policy analysis, highlighting important variations in business R&D performance and funding across industries and different types of firms that are hard to uncover based on aggregate R&D and tax relief statistics. They shed light on country and industry specific trends in the concentration of R&D activity, business R&D dynamics, the structure of R&D performance among different types of firms and the way that they fund their R&D activities. Such evidence can be relevant in assessing the contribution of different types of firms (e.g. young firms, foreign-controlled affiliates) and individuals (e.g. female R&D staff, doctorate holders) to research and development in the business sector and designing business R&D support policies.