Major Events in December 2026: The Circuit Winds Down

Last updated: 31 October 2026. Next review: 10 November 2026. Sources are linked in the text and listed at the end of the page.

Quick answer. 21 professional events start in December 2026, in 10 cities across 10 countries. London hosts 10 of them. 13 start between 1 and 3 December, and 19 of the 21 end by 10 December.

The largest by reach are Black Hat MEA in Riyadh (1-3 December, 40,000-plus attendees reported) and Black Hat Europe at ExCeL London (7-10 December).

Status on 31 October 2026. None of these events has run yet. Five start on 1 December: Chief Revenue Officer Summit London, SaaStr AI London, Black Hat MEA, the Post-Quantum Cryptography Conference in Amsterdam and Warsaw Security Expo. The last is the Conference of Paris (IEFA) on 16-17 December.

World Summit AI Qatar (Doha, 15-16 December) is not listed. The organiser announced a pause in June 2026, and its site now shows the dates without confirming the event (World Summit AI Qatar).

Why December is thin

December is the lightest month of the calendar. Budgets are closed and holiday travel starts in the second half.

What runs is of three kinds: fixed-date annual events such as the Doha Forum, institutional events planned through committees, and year-end planning events such as the London revenue week. Almost none is open-registration: most are invite-only, free for a defined audience, or institutionally gated.

Who is in the room

Revenue leadership and go-to-market

Four events, all in London, on 1-3 December. Three share one venue, InterContinental The O2.

• Chief Revenue Officer Summit London (1 December): invitation-only, run by the Revenue Operations Alliance.
• SaaStr AI London (1-2 December): founders, revenue leaders and investors in B2B software.
• Revenue Operations Summit London (2-3 December): 1,000-plus attendees from 800-plus companies (organiser figures).
• Sales Enablement Summit London (2-3 December, The Alliance): the enablement leg of the week. Practitioner peer sessions, no exhibition floor.

The timing follows year-end planning, when quota, headcount and tool budgets are set. The full circuit sits on the Sales Stack vertical.

Institutional private capital

• Women in Private Markets Summit (Convene, London, 2-3 December, PEI Group): invite-only, thirteenth edition. LPs, GPs, placement agents and service providers.
• Women in Private Debt Forum (London, 2-3 December): now Women in Private Credit Forum. It runs inside the summit, so one ticket covers every forum.

Cybersecurity

• Black Hat MEA (Riyadh Exhibition and Convention Centre, Malham, 1-3 December): Briefings, Arsenal, CTF and an Executive Summit. Run by Tahaluf with the Saudi Federation for Cybersecurity. Expo and student passes are free.
• Post-Quantum Cryptography Conference (Meervaart, Amsterdam, 1-3 December, PKI Consortium): free hybrid event on NIST post-quantum migration.
• Warsaw Security Expo (Ptak Warsaw Expo, Hall E, 1-3 December): free-entry security trade fair. 5,194 visitors and 85-plus exhibitors in 2025.
• Black Hat Europe (ExCeL London, 7-10 December, Informa): Trainings, Summits on 8 December, Briefings on 9-10 December. Briefings from 1,899 GBP.

AI and digital health

• Adopt AI Global Summit (Grand Palais, Paris, 3-4 December, Artefact): enterprise AI adoption across eight industry tracks.
• AI for Health (Grand Palais, Paris, 3-4 December, Artefact and Johnson & Johnson): the AI-first health summit for pharma, medtech and startups.
• GIANT Health (London, 7-8 December): NHS innovation festival, free for NHS staff.
• Digital Pathology & AI Congress Europe (London, 9-10 December): thirteenth edition, AI-assisted diagnostics for pathologists and biomedical scientists.

Sports media and production

• SportsPro Media Summit (Madrid, 2-3 December): rights, streaming and monetisation.
• FutureSPORT (London, 3 December, SVG Europe): innovation directors and startups.
• SVG Summit (New York, 14-15 December): about 2,000 broadcast professionals. The American mirror of FutureSPORT and the only event outside EMEA on this page.

Their proximity reflects the end of the sports broadcasting year, not coordination between organisers.

Policy and sovereign capital

• Doha Forum (5-6 December): Qatar's state-sponsored diplomatic summit, invitation only, 24th edition, officials from more than 170 countries.
• Milken Institute Middle East and Africa Summit (Abu Dhabi, 7-8 December): invitation-only, for sovereign wealth executives and development-finance officials.
• Conference of Paris, IEFA (OECD Conference Centre, 16-17 December): global economic governance and Europe-Americas relations. Cabinet-level officials and CEOs.

Developer community

• React Day Berlin (GitNation): hybrid. In person on 4 December, workshops on 5-6 December, remote on 7 December. The only event here built for individual practitioners.

Reading the December map

No single city dominates after London, which holds 10 events on 1-10 December.

• London (1-10 December): the revenue week of 1-3 December, Women in Private Markets Summit and Women in Private Debt Forum, FutureSPORT, GIANT Health, Black Hat Europe, then Digital Pathology & AI Congress Europe.
• Paris: Adopt AI and AI for Health share the Grand Palais on 3-4 December. IEFA follows on 16-17 December.
• Gulf (1-8 December): Riyadh (Black Hat MEA), Doha (Doha Forum) and Abu Dhabi (Milken MEA Summit).
• Security cluster (1-3 December): Riyadh, Amsterdam and Warsaw start on the same day.
• Single-event cities: Madrid (SportsPro Media Summit), Berlin (React Day Berlin) and New York (SVG Summit).

The 2026 context

The Gulf carries the month. Black Hat MEA, the Doha Forum and the Milken MEA Summit run on state and institutional calendars, which do not follow the northern-hemisphere holiday cycle.

Security and revenue leadership are the two largest communities. Four events each. Security runs from a free Warsaw trade fair to Black Hat in Riyadh and London.

Hybrid is the adaptation to a thin month. React Day Berlin splits in-person and remote days, and the PQC Conference is a free hybrid event.

Methodology and data standards

Each event record is built from primary source verification. Where the organiser does not publish a field, it is left blank. Attendance figures are organiser figures and flagged as self-declared.

Selection rule. The page lists every event in the database with a fiche and a 2026 start date between 1 and 31 December, duplicates, cancelled and paused events excluded. Dates were checked against each current fiche on 31 October 2026.

Changes since 10 October 2026:

• The page moves from a 13-event selection to the full fiche list, now 21 events, the same rule as the November page.
• Nine events are added: Black Hat MEA, Black Hat Europe, Adopt AI Global Summit, AI for Health, the PQC Conference, Sales Enablement Summit London, Women in Private Debt Forum, Warsaw Security Expo and the Conference of Paris (IEFA).
• World Summit AI Qatar is removed while the organiser's pause stands.
• The Milken MEA Summit is dated 7-8 December, as in its fiche. The previous version showed 3 December in the text.

The index does not rank events within this vertical. Where two events serve similar audiences, both are documented without comparative judgement. Confirm pricing and registration on each official site.

Scope note. This vertical covers events with publicly disclosed programmes and open, application-based or institutional registration in December 2026 across EMEA, plus the SVG Summit in New York as the mirror of FutureSPORT. Internal firm events, private LP days and pure virtual formats are outside scope.

Sources

Accessed on 31 October 2026. Organiser sites, as recorded in each event's fiche.

1. Black Hat MEA, organiser site: 1-3 December 2026.
2. Chief Revenue Officer Summit London, organiser site: 1 December 2026.
3. Post-Quantum Cryptography Conference 2026, organiser site: 1-3 December 2026.
4. SaaStr AI London, organiser site: 1-2 December 2026.
5. Warsaw Security Expo, organiser site: 1-3 December 2026.
6. Revenue Operations Summit London, organiser site: 2-3 December 2026.
7. Sales Enablement Summit London, organiser site: 2-3 December 2026.
8. SportsPro Media Summit, organiser site: 2-3 December 2026.
9. Women in Private Debt Forum, organiser site: 2-3 December 2026.
10. Women in Private Markets Summit, organiser site: 2-3 December 2026.
11. Adopt AI Global Summit, organiser site: 3-4 December 2026.
12. AI for Health, organiser site: 3-4 December 2026.
13. FutureSPORT, organiser site: 3 December 2026.
14. React Day Berlin, organiser site: 4-7 December 2026.
15. Doha Forum, organiser site: 5-6 December 2026.
16. Black Hat Europe, organiser site: 7-10 December 2026.
17. GIANT Health, organiser site: 7-8 December 2026.
18. Milken Institute Middle East and Africa Summit, organiser site: 7-8 December 2026.
19. Digital Pathology & AI Congress Europe, organiser site: 9-10 December 2026.
20. SVG Summit, organiser site: 14-15 December 2026.
21. Conference of Paris (IEFA), organiser site: 16-17 December 2026.