On 19-24 June, Toulon, France, hosted the 18th International Conference on Marine Corrosion and Fouling. Unsurprisingly, the latest microbial control technologies were discussed amongst participants. The scientific programme included a number of presentations dedicated to biofilms and anti-fouling; reminding us that microbial control technologies are a key component of solutions to keep ship hulls clean and free from these unwanted marine organisms.