Syndicat Intercommunal d'Informatique

Profile narrative

The Syndicat Intercommunal d’Informatique (SII) is a French public entity that provides shared information technology services to municipalities and other local public bodies. Its core offerings include the operation and maintenance of municipal applications, email systems, family portals, school and BAFA registration platforms, invoice distribution channels, and correspondence management tools. SII also hosts and supports websites for its member communities, ensuring their online presence and access to public information. By pooling resources, the syndicate enables its members to benefit from centralized IT infrastructure and expertise that would be costly to duplicate individually.

The organisation serves a number of municipalities in the Seine‑Saint‑Denis department, as evidenced by incidents affecting client cities such as Tremblay‑en‑France, Le Blanc‑Mesnil, La Courneuve and Bobigny’s public housing offices, as well as the inter‑municipal catering union Siresco. In addition, its services extend to affiliated communities that rely on SII for the continuity of essential administrative functions. The syndicate’s reach is therefore regional, focusing on the public sector within the Île‑de‑France area. No explicit figures on the total number of member entities or staff are provided in the available sources.

SII’s distinguishing attribute lies in its intercommunal, cooperative model, which positions it as a shared service centre designed to meet the specific IT needs of local governments. This model entails a regulatory role in ensuring that the services it delivers comply with public‑sector standards and that incident response follows established procedures, as seen when the syndicate collaborated with municipal IT teams to contain cyberattacks and implement corrective measures. Its notable competencies include managing complex municipal IT environments, maintaining service continuity for critical functions such as email, registrations and invoicing, and coordinating recovery efforts after disruptions. The sources do not disclose any parent‑company ownership or subsidiary relationships, so the organisation’s structural details remain as a stand‑alone public syndicate.

Incidents

2 incidents linked to this organisation.