Govtech’s European calendar is dominated by one show – Smart Country Convention in Berlin at 23,000 – followed by the national e-government congresses of Central and Eastern Europe, where digital public administration is most advanced. Legaltech has its own fixture in London. Ranked by verified attendance where the organiser publishes it.
1Rank
Public sector software, e-government identity, city sensors 13-15 Oct 2026, hub27, Berlin Exhibition Grounds 23,000 attendees
Messe Berlin and Bitkom's convention for the digital state and smart city, bringing German federal, state and municipal buyers together with public-sector vendors. The largest govtech audience in Europe by a wide margin.
Why it is hereIf you sell to German public administration – the largest public-sector IT market in Europe – this is the one room where the buyers gather.
2Rank
E-government identity, public sector software 24-26 Nov 2026, Crowne Plaza Bratislava 2,000 attendees
Slovakia's long-running e-government congress, the reference event for digital public administration in Central Europe with strong participation from Czech, Hungarian and Polish ministries.
Why it is hereThe Central European public-sector IT community in one place – a region where e-government adoption outpaces Western Europe.
3Rank
Legaltech, contract AI 9 Mar 2027, Old Billingsgate, London 2,000 attendees
Netlaw Media's legaltech conference in the City of London, the largest gathering of law firm innovation teams and legal technology vendors in Europe. Contract AI is the dominant theme in recent editions.
Why it is hereThe only dedicated legaltech event at this scale in Europe – and London law firms are the most active legaltech buyers on the continent.
4Rank
E-government identity, public sector software 5-6 Nov 2026, National Library of Estonia, Tallinn 1,000 attendees
The International Centre for Defence and Security's summit in Estonia, the country that runs the most digitised public administration in Europe. Government CIOs and digital ministers from across the EU and NATO.
Why it is hereSmall but exceptionally senior – Estonia's e-government is the reference implementation, and this is where its architects meet their peers.
5Rank
Public sector software 13-15 Apr 2026, Hotel Bernardin, Portoroz Attendance not published
The Slovenian Society INFORMATIKA's annual informatics conference, with a strong public-sector IT track reflecting Slovenia's role in EU digital government working groups.
Why it is hereRegional coverage for the Slovenian and Western Balkan public-sector market.
Attendance figures come from each event’s own record and organiser statements. Where an organiser does not publish a figure, the entry says so rather than estimating. Note that Smart Country Convention is also tagged Smart cities and urban tech – it is the one event on this list where municipal infrastructure buyers are as present as national ministries.
Common questions
Which is the largest govtech event in Europe?
Smart Country Convention in Berlin at 23,000 attendees, run by Messe Berlin and Bitkom each October. No other European govtech event comes close in scale.
Is there a dedicated legaltech event in Europe?
The British Legal Technology Forum in London at 2,000 attendees is the largest. Legaltech and govtech share a vertical on Sesamers because both sell into regulated, procurement-driven institutions.
Why are so many govtech events in Central and Eastern Europe?
Because that is where digital public administration is most advanced. Estonia, Slovakia and Slovenia moved to e-government earlier and more completely than most Western European states, and their conferences reflect it.
Does Sesamers take payment for placement on this list?
No. Rankings are by verified attendance. Events are listed because they are tracked in the Sesamers database, not because they paid.