Technology demonstration in the field of soil and groundwater management is, to a large extent, subject to national, regional or private funding programmes with different priorities such as regional development, support of innovation or environmental protection. For the selection and handling of demonstration projects different criteria exist all over Europe. Despite of the growing need for cost-efficient soil and groundwater remediation the market for promising technologies is stagnant. Co-operation of European demonstration programmes both through agreement on common priorities and the co-operation at the project level is indeed desirable. Through concerted efforts of a large European consortium, covering the whole spectrum of relevant stakeholders EURODEMO aims at finding solutions to this discrepancy.