This chapter describes how European civil societies promote integration in the EU by comparing leading practices from various NGOs in Sweden, Great Britain, the Netherlands and Italy. The chapter concludes that NGOs are active in areas where governments are weak, or, according to the NGOs, do not meet the expected requirements. All NGOs studied here are more or less dependent on public funds, and a lack of funds impedes their ability to access and connect with EU decision-makers and administrative staff. Small NGOs and similar networks in particular have difficulties meeting and influencing politicians and the administrative staff within the EU. It is therefore of utmost importance that policy-makers in the EU create more participatory opportunities for various NGOs, which would simultaneously strengthen the organisation’s legitimacy and relevance. It is worth nothing that the NGOs studied here articulate surprisingly few national variations with regard to the preconditions underlying their work. European policy-making institutions may therefore consider the diversity of European civil societies.