The 21st ESACT conference was held in the beautiful surroundings of the CityWest Hotel resort in Dublin, Ireland. For the first time in ESACT history the number of participants exceeded 900: a sign of the ever increasing importance of this area. The conference commenced on Sunday June 5th with two sets of parallel workshops on the subjects listed below. An additional workshop was held on Monday lunchtime of the conferenceProcess Analytical Technology (PAT), Quality by Design (QbD) and other recent regulatory developments.2. Innovative media products for the 21st century biopharmaceutical industry.3. The impact of high titre media feed-streams on monoclonal antibody purification.4. Advances in genomics and proteomics.5. Stem Cell Technology: new developments and clinical applications.