TL;DR — “IT conferences within 30 km of Le Coquillage” really means Saint-Malo, 8.7 km away [2]. The 2026 calendar clusters in April–May at the Palais des Congrès: PQCrypto 2026 (14–16 Apr) [10], Rencontres Stratégiques des Trois Océans (9–10 Apr) [12], and CPS-IoT Week (11–14 May) [4] bundling HSCC/ICCPS, SenSys, RTAS and seven workshops [6]. All three are already over as of 28 May 2026. Next upcoming: Digital Benchmark (28–29 Sep) [13]. Year-round anchors: Le Poool / French Tech Rennes-St-Malo [16] and the IUT de Saint-Malo’s annual Flag’Malo CTF [15].
The 30 km box
Driving distances from Le Coquillage in Saint-Méloir-des-Ondes:
| City | Distance from Le Coquillage | Tech events in 2026 |
|---|---|---|
| Cancale | 7 km | None surfaced |
| Saint-Malo | 8.7 km | Everything below [2] |
| Dol-de-Bretagne | ~15 km | None surfaced |
| Dinard | ~18 km | None surfaced |
| Combourg | ~25 km | None surfaced |
| Dinan | 30.8 km | ⚠ Just outside [3] |
The smaller Côte d’Émeraude towns surface nothing tech for 2026 in published calendars. Rennes (≈70 km) has the regional ecosystem but is outside the radius. Every event below is in Saint-Malo proper, at one of three venues: the Palais des Congrès (Palais du Grand Large) on the seafront [5], the IUT campus on rue de la Croix Désilles [14], or Le Poool’s coworking site near the station [17].
2026 catalog at a glance
| Event | Dates | Venue | Audience | Status (28 May 2026) |
|---|---|---|---|---|
| Forum des Métiers du Numérique | 21 Mar | IUT de Saint-Malo | Students / public | ✓ Past [14] |
| Rencontres Stratégiques des Trois Océans | 9–10 Apr | Saint-Malo | Defence / industry | ✓ Past [12] |
| PQCrypto 2026 (17th) | 14–16 Apr | Saint-Malo | Academic crypto | ✓ Past [10] |
| CPS-IoT Week 2026 (19th) | 11–14 May | Palais des Congrès | Academic systems | ✓ Past [4] |
| ↳ HSCC/ICCPS 2026 | 11–14 May | Palais des Congrès | Hybrid + CPS | ✓ Past [8] |
| ↳ SenSys 2026 | 11–14 May | Palais des Congrès | Embedded AI sensing | ✓ Past [9] |
| ↳ RTAS 2026 (32nd) | 12–14 May | Palais des Congrès | Real-time embedded | ✓ Past [7] |
| Digital Benchmark Saint-Malo | 28–29 Sep | Saint-Malo | CMOs / CDOs (~300) | ▲ Upcoming [13] |
| Flag’Malo CTF (next edition) | ~Dec (TBC) | IUT de Saint-Malo | Cyber / students | ▲ Annual [15] |
The April–May academic cluster
CPS-IoT Week 2026 — 19th edition, 11–14 May at the Palais des Congrès (1 Quai Duguay-Trouin, 35400 Saint-Malo) [5]. The premier annual gathering on cyber-physical systems and IoT: three flagship conferences (HSCC/ICCPS, SenSys, RTAS) plus workshops ENSsys, DESTION, CAADCPS, RAGE, FMSys, TADAM, FACCT all sharing one venue [6]. HSCC/ICCPS added an AI-enabled Autonomy track in 2026 [8]. SenSys 2026 is the first edition under its new mandate as the unified conference for Embedded Artificial Intelligence and Sensing Systems — folding in the former IPSN and IoTDI communities [9]. RTAS focuses on time-critical systems across two tracks: Systems & Applications and Applied Methodologies & Foundations [7].
PQCrypto 2026 — 17th International Conference on Post-Quantum Cryptography, 14–16 April in Saint-Malo, organised by IRISA with INRIA and IRMAR [10]. Topic scope: code-, hash-, isogeny-, lattice-, multivariate- and MPC-in-the-head constructions, plus quantum cryptanalysis and side-channel attacks. 27 full papers from 66 submissions, published as Springer LNCS 16491/16492 [11].
Rencontres Stratégiques des Trois Océans — inaugural edition 9–10 April, organised by Vates and focused on European digital sovereignty for ~100 defence and tech decision-makers [12]. Closed-door / invitation level rather than open registration.
Industry: September
Digital Benchmark Saint-Malo 2026 — 28–29 September, themed L’entreprise 2030: Agentique, Souveraine, Décarbonée (agentic AI, technological sovereignty, post-petroleum economy) [13]. Organised by EBG (Elenbi Group), 660-member French digital think tank. ~300 CMOs and CDOs from non-competing brands, 25 keynotes, 30 workshops, 50+ vendor meetings. All-inclusive (transport, lodging, meals) — invitation-driven format rather than public ticket sales.
Year-round anchors
Le Poool x La French Tech Rennes-St-Malo — innovation hub spanning Rennes and Saint-Malo, runs the recurring Digital Tech Conference, Matinales, Market Pitch and Startup on the Beach programs alongside seven cohorts of its Incubation program [16]. The Saint-Malo coworking site sits near the train station / Grande Passerelle and is supported by Saint-Malo Agglomération [17]. Easiest year-round option for evening tech meet-ups; their public agenda is the place to check for specific dates.
Flag’Malo CTF — annual capture-the-flag organised by IUT Saint-Malo’s Réseaux & Télécoms students [15]. Self-described as the largest CTF in Brittany; main edition typically December at the IUT campus. The 2026 IUT open house on 7 February also ran a mini-CTF for prospective students.
Forum des Métiers du Numérique — annual at the IUT (held 21 March in 2026). Career-fair / mini-conference format with sessions on cybersecurity, cloud roles and network project management, plus participating employers including Orange, NXO, LACROIX, COMCYBER, Stelogy, Blue [14]. Free, public, Saturday format — the only Saturday tech event on the local calendar.
Trip-planning notes
- Saturday-evening dinner means the IT calendar is mostly already a miss. Every major 2026 conference here is mid-week; Forum des Métiers and Flag’Malo are the only Saturday-shaped events.
- April–May is the dense window. If a future trip is open-dated, anchoring the Saturday dinner around mid-May lines it up with CPS-IoT Week (badge or sponsor halls aside, ambient activity at the Palais des Congrès and surrounding hotels is at its peak).
- September window (Digital Benchmark) is more closed-format / executive — less drop-in friendly.
- Dinan is exactly on the 30 km boundary by road [3]; as the crow flies it’s well under, but no IT events surface there in 2026 either way.