When it established its first field office in Kinshasa in February 2004, EISA had long been active in the DRC, working with a range of role-players since 1998, establishing strong links with several CSOs and political parties. EISA DRC contributed to efforts toward a smooth and peaceful political transition, culminating in the holding of credible and legitimate elections in the DRC. In the post election period EISA supported the deepening of democracy, peace and good governance. The office was closed in 2011 with the completion of its mandate.

In 2017 a second office was opened. EISA, working with Democracy Reporting International (DRI), headed the Projet de Renforcement de l'Observation Citoyenne des Elections au Congo (PROCEC). PROCEC supported Synergie des Missions d'Observation Citoyenne des Elections (SYMOCEL), a network set up on 1 March 2016 by ten civil society organisations.

A Project to Strengthen the Monitoring Initiatives of Electoral Mechanisms (PRISME), financed by the European Union for a period of 24 months, commenced on 1 March 2021 to support CSOs their advocacy for electoral reforms and to build the capacity of CSOs to conduct citizen observation.