June Events
Four confirmed events across two months — three cluster into a four-day window Jun 22–25 that stacks a major public-sector congress directly into a free startup evening.
HS'R CTF #8
Overnight Jeopardy-style CTF co-sponsored by DGSE and Root-Me. Day programme: company talks and exhibitor stands. Night programme: competitive CTF (21:00 → 09:00). AI tools banned for 2026. Student-run by HackSecu'R association; open to external participants.[8][9]
CoTer Numérique 2026
France's main congress for IT directors and CISOs of collectivités territoriales. 35th edition theme: digital sovereignty — AI in public services, NIS2, cloud strategy, data governance. 120+ sessions, ~1 300 participants. Registration via member portal; non-members contact organisers directly.[1][3]
Fête de l'Innovation 2026
Free evening co-organised by Innovact, PUI InnoRem, and French Tech Est. Grand Pitch 16:00 · Innovation Village (startups + research labs) 18:00 · cocktail networking 20:30. Broadest-access entry point for a tech visitor; register via Weezevent.[5][6]
TERRITORIALIS 2026
Annual congress of the SNDGCT (national union of territorial directors-general). Theme: Avoir confiance & agir ensemble. ~1 700 participants, 70 exhibitors. Digital transformation content throughout; audience is general territorial management, not IT specialists.[10]
Sacrée Tech
Reims' only recurring developer meetup — roughly quarterly. No 2026 dates announced at time of research (June 2026). Topics: web dev, data, infrastructure. Earlier editions: Leaflet/MongoDB mapping, technical debt, conversational AI, datacenter tour.[11][12] Check Agenda du Libre for announcements.