TL;DR — Of the .NET / Microsoft-stack conferences physically held in Belgium, France, Netherlands or Germany in 2026, only two big-stage CFPs are still open today: Techorama 2026 Netherlands (Utrecht, Oct 26-28; CFP closes 29 May 2026) [1] and DDC Cologne 2026 (Nov 23-26; CFP closes 15 Jun 2026, only just opened on Apr 22) [2]. Paris MWCP has a rolling “Appel à Speaker” with no published deadline [8]. Everything else is closed (Techorama BE, DWX, BASTA Mainz, ESPC Amsterdam, ECS Cologne, dataMinds), already past (BASTA Frankfurt, Future Tech 2026, Microsoft AI Tour Paris), or not yet announced (CloudBrew, Future Tech 2027, VisugXL).
Open CFPs — submit now
Conferences whose call for papers is open on 2026-04-30. Listed by deadline, soonest first.
| Conference | Country | Dates | Location | CFP closes | CFP link |
|---|---|---|---|---|---|
| ⚠ Power Summit (online, German) | DE | 14–15 Jul 2026 | Online | 23:59 today, 30 Apr 2026 [19] | Sessionize |
| Techorama 2026 Netherlands | NL | 26–28 Oct 2026 | Kinepolis Jaarbeurs Utrecht [1] | 29 May 2026 [1] | Sessionize |
| Azure Summit (online, German) | DE | 24–25 Nov 2026 | Online [18] | 15 Jun 2026 [18] | Sessionize |
| DDC .NET Developer Conference ‘26 | DE | 23–26 Nov 2026 | Hyatt Regency Cologne [2] | 15 Jun 2026 [2] | Sessionize |
| M365 Summit Mainz | DE | 12–14 Oct 2026 | Rheingoldhalle Mainz [17] | 30 Aug 2026 [17] | Sessionize |
| MWCP — Modern Workplace Conference Paris | FR | 23–24 Jun 2026 | Microsoft France office, Paris [8] | No public deadline; rolling “Appel à Speaker” [8] | modern-workplace.pro |
| VISUG / VisugXL 2026 (20-yr anniversary) | BE | TBA — 2026 [20] | Belgium | Rolling Sessionize submissions [20] | visug.be |
Submitter notes
- Techorama NL covers travel + hotel for accepted speakers and accepts 60-min sessions, 60-min keynotes, and 1-day workshops [1].
- DDC Cologne offers free conference access, catering, accommodation and reasonable travel reimbursement — but no honorarium; format is 60-min sessions, full-day workshops, or DevSessions, with 500–1800-char abstracts [2].
- Power Summit / Azure Summit are German-language online events run by ppedv targeting 1,000–1,500 active participants per event; sessions are 30 min with preference for customer talks [19] [18].
- MWCP Paris is the main French Microsoft community event — 50+ sessions on AI, Modern Work and Cybersecurity at the 10th edition [8] [16].
- VISUG has not yet published a 2026 VisugXL date — the user group is using its 20-year anniversary as a hook for “extra” community events; subscribe to the newsletter to catch the announcement [20].
Closed CFPs (still useful — events themselves are upcoming)
If you missed the deadline you can still attend; the call simply closed before today.
| Conference | Country | Dates | Location | CFP closed |
|---|---|---|---|---|
| Techorama 2026 Belgium (Medieval Edition) | BE | 11–13 May 2026 | Kinepolis Antwerp [3] | 30 Jan 2026 [3] |
| European Collaboration Summit (ECS) | DE | 5–6 May 2026 | Confex Cologne [11] | 15 Oct 2025 [11] |
| Advanced Developers Conference (ADC) | DE | 4–6 May 2026 | Jahnstadion Regensburg [22] | Not posted publicly [22] |
| DWX 26 | DE | 29 Jun – 2 Jul 2026 | m:con Rosengarten Mannheim [4] | 11 Jan 2026 [4] |
| BASTA! Herbst 2026 | DE | 28 Sep – 2 Oct 2026 | Rheingoldhalle Mainz [6] | 9 Mar 2026 [5] |
| Devoxx Belgium 2026 ⚠ Java-leaning | BE | 5–9 Oct 2026 | Kinepolis Antwerp [23] | TBA on cfp.dev [23] |
| ESPC 2026 (SharePoint / M365 / Azure) | NL | 30 Nov – 3 Dec 2026 | RAI Amsterdam [10] | 2 Apr 2026 [9] |
| CloudBrew 2026 (AZUG, Azure) | BE | 10–11 Dec 2026 | Lamot, Mechelen [12] | Not yet announced [12] |
Already past (skip — for context only)
| Event | Country | Took place |
|---|---|---|
| BASTA! Spring Frankfurt 2026 | DE | 2–6 Mar 2026 [7] |
| Microsoft AI Tour Paris | FR | 10–11 Mar 2026 [16] |
| Future Tech 2026 (Utrecht) | NL | Mar 2026 — next edition is 10–11 Mar 2027, CFP not yet open [13] [14] |
| dataMinds Saturday 2026 (Mechelen) | BE | 21 Feb 2026 [21] |
Worth watching (CFPs likely to open later in 2026)
- CloudBrew 2026 — AZUG’s flagship Azure conference, 10–11 Dec at Lamot Mechelen. Historical pattern: Sessionize CFP opens roughly 4–6 months before the event, so expect mid-2026 [12].
- Future Tech 2027 — Dotned/SDN’s .NET & Microsoft conference, 10–11 Mar 2027 in Utrecht. Previous editions opened CFP ~6 months out (Future Tech 2026 opened Sep 2025) [13] [14].
- VisugXL 2026 — VISUG’s 20-year anniversary edition; date TBA but likely autumn given the community’s calendar [20].
Country digest
Belgium has the densest .NET community calendar (Techorama, CloudBrew, VISUG, dataMinds), but the major CFPs all closed in Q4 2025 / Q1 2026. Only VISUG’s rolling Sessionize submissions remain truly open right now [3] [12] [20] [21].
France has very thin .NET-specific conference activity — most Microsoft France events (MWCP, Microsoft AI Tour, Power Platform French Summit, aMP Day Strasbourg) skew toward Modern Work / Power Platform / AI rather than core .NET development. MWCP is your only practical CFP target right now [8] [16]. Note: NewCrafts Paris is on hiatus in 2026 and returns in 2027.
Netherlands is the cleanest pick: Techorama NL has just opened submissions and covers travel + hotel; ESPC Amsterdam is large but already closed [1] [10].
Germany has the deepest .NET conference market in Europe (DWX, BASTA Spring + Herbst, DDC, ADC, ECS, M365 Summit, plus the ppedv online summits) [15]. Most physical CFPs have already closed for 2026; DDC Cologne is the big remaining .NET CFP, with M365 Summit Mainz still wide open if your topic is M365/Copilot rather than core .NET [2] [17].
Adjacent regional events (out of scope but worth noting)
For .NET speakers willing to travel just outside the four target countries, the same circuit includes NDC Oslo (14–18 Sep 2026) [24], Update Conference Prague (12–13 Nov 2026), and .NET Day Switzerland (25 Aug 2026 in Zürich) [15] — these typically have CFPs running on similar mid-year cycles.