A COST Action is a bottom-up, interdisciplinary, pan-European research network funded by the European Cooperation in Science and Technology (COST) program, designed to foster collaboration and knowledge exchange among researchers and innovators across various science and technology fields. COST Actions of interest to microbiologists include CA22109 ‘Medicinal plants for animal health care: Translating tradition into modern veterinary medicine (MedPlants4Vet)’, CA23152 ‘Building Consensus on Biofilm Regulatory Decision Making (RegulatoryToolBox)’ and CA20130 ‘European MIC Network – New paths for science, sustainability and standards (Euro-MIC)’. The just-finished Euro-MIC has established an impressive range of educational e-resources ‘MIC Courses’ that were highly appreciated by participants across industry and academia which would still be of use to microbiology educators and learners alike. This presentation will introduce the two active COST Actions MedPlants4Vet and RegulatoryToolBox, and will explain how interested microbiologist can join (for free) and contribute to the networks. We will focus here on the development, delivery and evaluation of educational tools and events. For MedPlants4Vet, a workshop named ‘Herb power for animal health: from tradition to legislation’ was run and attended by mostly veterinary students or practitioners from many different European countries including Turkey, Greece, Croatia, Romania and Italy. Games and other innovative teaching approaches were efficiently employed. 95% of the attendees found our lectures useful and enjoyable. More such workshops are planned for the near future. RegulatoryToolBox has only been active for one year, in which two general meetings and one educational event around existing regulatory frameworks for biofilm-targeting products have been delivered.