Potential technical collaborators for a wide range of digital humanities projects can be found with the Oxford support services, particularly the Oxford e-Research Centre, IT Services, and the Bodleian Libraries. Try these before seeking technical support outside Oxford, as they will be able to meet the great majority of technical support needs.
You can use the information collected here on the Digital.Humanities@Oxford pages to search for potential collaborators either by research methodology, subject areas of interest for people and projects, or within particular Divisions and Units. There are a number of digital humanities projects carried on inside Oxford's several Museums, as well as a considerable amount of expertise in digitising objects and creating public-facing projects with research data. The Ashmolean, the Pitt Rivers Museum, and the Museum of the History of Science have major holdings and are natural collaborative partners in projects that conduct research with those holdings.