- Anything before Sep 2026? Aim for DevSum (Jun 2–3, Kistamässan) — the only sizeable dev-focused flagship left this spring [1], or Brilliant Minds (Jun 7–8) if invite-only leadership salon is your thing [2].
- Want the biggest week? September 7–11 — Nordic Tech Week turns the whole city into 200+ events [3].
- Startup/VC orientation? Skip 2026, book Techarena 2027 (Feb, Strawberry Arena, 12k attendees) [4].
- Just want a free walk-in expo? Stockholm Tech Show 2027 (May 25–26, Kistamässan, 250+ vendors, free) [5].
Flagship calendar (Stockholm, 2026 → mid-2027)
Sorted chronologically. Rows greyed out are already past as of today (May 30, 2026). All venues in Stockholm proper unless noted; Kistamässan is in Kista, ~20 min by metro from Centralstationen.
| Date | Event | Venue | Focus | Scale / cost |
|---|---|---|---|---|
| Feb 3 | AgentCon Stockholm [6] | Microsoft Sweden, Regeringsgatan 25 | AI agents, Copilot Studio, agentic systems | 1 day · free |
| Feb 11–12 | Techarena [7] | Strawberry Arena (Solna) | Startup/scaleup + investor matchmaking, "Scandinavia's biggest" | 12k attendees · 2k investors · 300 speakers · paid [4] |
| May 6–8 | Data Innovation Summit [8] | Kistamässan | Applied data, analytics, AI — largest in Nordics | 3,500+ attendees · 300+ speakers · 15 stages · paid [9] |
| May 26–27 | Stockholm Tech Show [5] | Kistamässan | 6 co-located expos: AI, Cloud, Cybersec, Data Centre, DevOps, Mobile | 5,000+ visitors · 250+ exhibitors · free expo |
| May 30 | Data Saturday Stockholm [10] | Stockholm (varies) | Community day on Microsoft data platform | 1 day · free |
| Jun 2–3 | DevSum [1] | Kistamässan | Nordic dev flagship: architecture, security, AI, web, cloud | 600+ attendees · 70+ sessions · paid |
| Jun 7–8 | Brilliant Minds [2] | Grand Hôtel Stockholm (historical) | Spotify/Daniel Ek-founded leadership salon — "Hope in Action" theme; will.i.am, Lupita Nyong'o, Sanna Marin, Scott Galloway | invite/closed · public "A Taste of" companion track |
| Sep 3–5 | Flutter & Friends [10] | Stockholm (TBA) | Flutter / cross-platform mobile | 3 days · paid |
| Sep 7–11 | Nordic Tech Week [3] | City-wide, anchor in Kungsträdgården | 200+ independently hosted events under one umbrella — startups, investors, builders | Thousands · mostly free (per-event) |
| Oct 5–6 | Nordic Integration Summit [10] | Stockholm (TBA) | Microsoft integration stack (Azure, Logic Apps, BizTalk-era) | 2 days · paid |
| Oct 7 | Digital Architecture Design Day [10] | Stockholm (TBA) | Software architecture | 1 day · paid |
| Oct 12–14 | Platform Summit + Nordic APIs UnConference [10] | Stockholm (TBA) | APIs, platform engineering — back-to-back with unconference day | 3 days · paid |
| Oct 13 | Experts Live Sweden [10] | Stockholm (TBA) | Microsoft ecosystem (Azure, M365, Intune) | 1 day · paid |
| Oct 15 | CTO Craft Roadshow [10] | Stockholm (TBA) | Engineering leadership / CTO peer track | 1 day · paid |
| Oct 20 | Umbracokalaset [10] | Stockholm (TBA) | Umbraco CMS / .NET web | 1 day · paid |
| Nov 12–14 | SecureAI.se [10] | Stockholm (TBA) | AI security & cybersecurity | 3 days · paid |
| Nov 27–29 | DreamHack Stockholm [11] | Kistamässan (typical) | Gaming / esports festival + expo (adjacent to IT) | Massive · paid |
| Feb 2027 | Techarena 2027 [12] | Strawberry Arena | Same flagship — pre-registration open now with discounted rates | ~12k attendees · paid |
| May 25–26 2027 | Stockholm Tech Show 2027 [5] | Kistamässan | Same as 2026 — six co-located expos | Expected 5k+ · free expo |
Notes on the marquee events
DevSum — the one a software engineer should pick
Run by Cornerstone; positioned as the Nordic dev-flagship. Tracks span architecture, security, AI, web, cloud. 70+ sessions across two days at Kistamässan with a social event included; the 2026 keynote is by Olympic swimmer Therese Alshammar on "Winning Mindset" [1]. If you only have a weekend in Stockholm, this is the natural pair to a Tue/Wed dinner reservation.
Nordic Tech Week — the citywide format
Not one conference but a week-long umbrella. 200+ independently hosted sessions across Stockholm; anchored by an open "Tech Open" gathering in Kungsträdgården [3]. Best fit if you want optionality — drop into investor mixers, dev meetups, and demo nights without committing to one agenda. Sep 7–11, 2026.
Data Innovation Summit — the data/AI flagship
"Largest and most influential annual applied Data and AI event in the Nordics" per its own site [8]. 3,500+ attendees, 300+ speakers, 15 stages, 7 workshop rooms over three days — hybrid format with personalised tracks. Held at Kistamässan, Arne Beurlings Torg 5 [9]. Next edition: May 2027.
Stockholm Tech Show — the free walk-in expo
Branded as "the Nordic region's leading meeting place for digital transformation" — but the practical hook is that exhibition entry is free [5]. Two summits run alongside: Cyber Security (day 1) and DevOps (day 2). 250+ vendors, 5,000+ visitors. Ticket prices for the paid summits increase after 20 Dec 2025 for 2026 editions [13]. Next: May 25–26, 2027.
Techarena — startup/scaleup + investor matchmaking
The Stockholm counterpart to Helsinki's Slush. Founder/VC orientation, 2k investors with combined $2T AUM, 300+ speakers across 4 stages, 100+ side events [7]. Strawberry Arena, Solna (10 min by metro from city). 2026 already happened (Feb 11–12); 2027 dates not yet public but pre-registration is open with discounted rates [12].
Brilliant Minds — the closed leadership symposium
⚠ Not a normal conference: invite-only, founded by Daniel Ek (Spotify) and Ash Pournouri. June 7–8, 2026 in Stockholm with speakers including will.i.am, Scott Galloway, Lupita Nyong'o and former Finnish PM Sanna Marin under the "Hope in Action" theme [2]. The companion "A Taste of Brilliant Minds" programme is open to ~250 local students/young adults by application — the only path in for non-invitees.
Recurring meetups (year-round)
AI Tinkerers Stockholm
Monthly. Live code demos from local AI builders. free [14]
AI Sweden
National AI centre — runs multiple events/year in Stockholm. Mostly free (Vinnova-funded) [14]
Norrsken House
Impact-tech hub on Birger Jarlsgatan; ongoing founder/investor events. Drop-in events for non-members vary [15]
Stockholm AI Conference
Evening format gathering ~250 business + tech leaders. Dates published per edition [14]
Startup Grind Stockholm
Monthly founder fireside chats; chapter of the global network [14]
GOTO Stockholm Nights
Free dev evenings (post-JavaScript edition recently); look for next event around DevSum week [10]
Stockholm's tech-event geography
- Kistamässan (Kista) — the centre of gravity for big multi-track conferences (DevSum, DIS, Stockholm Tech Show, DreamHack). 20 min north of Centralstationen on the blue line + commuter rail; not central, plan accommodation in Solna/Sundbyberg or commute from downtown.
- Strawberry Arena (Solna) — Techarena. 10 min from T-Centralen on tunnelbana.
- Microsoft Sweden HQ (Regeringsgatan 25) — community events (AgentCon, AI Community Days). Smack in the city centre.
- Norrsken House (Birger Jarlsgatan 57C) — startup ecosystem hub, walkable from Östermalmstorg.
- Grand Hôtel — Brilliant Minds' historical home, waterfront opposite the Royal Palace.
What's missing from this list
Stockholm does not have a dedicated peer to Helsinki's Slush in November — Techarena fills that startup/VC role but in February, and at smaller scale. For an autumn founder-heavy fix, the trip to Helsinki (Nov 18–19, 2026) remains the Nordic default. Stockholm's autumn density is the Oct 5–20 dev-week cluster instead.