data2day
At a glance
- Next event
- Not announcedLast: Oct 6–8, 2026
- Call for papers
- Closed Apr 15, 20262026 call
- Audience
- Not published
- Tickets
- €649–€1,7993 prices, 2025
- Sponsorship
- Packages not published
- Sponsors
- 4 in 2026▼ −20% vs 2025 (5)
- Program freshness
- 95#72 of 143 · 8% reruns
- Similar conferences
- Minds Mastering Machines, DACH AI, Data Analytics & Insights Summit, PyData
- Organizer
- heise Developer, iX and dpunkt.verlag (Heise Medien / Rheinwerk Verlag)
- Category
- Data science & ML
- Website
- data2day.de
- Social
- X / Twitter
- Typical place
- Karlsruhe, Germany
- Topics
- Machine learningData scienceData engineeringGenerative AIGovernance & qualityAnalytics engineeringBusiness & leadership
German-language conference for data scientists, data engineers and data teams, held since 2014 and organised by heise Developer, iX and dpunkt.verlag (dpunkt is now part of Rheinwerk Verlag; tickets are sold by Heise Medien). Format: one workshop day plus two conference days. In-person editions since 2019: Ludwigshafen 2019 (moved from the announced Heidelberg venue), Karlsruhe 2022, 2023 and 2025, Heidelberg 2024, Cologne 2026. Online-only editions are out of scope and not recorded: 2020 (19-21 Oct 2020, moved online because of COVID-19 instead of Heidelberg) and 2021 (8 Dec 2021, online). Per-year archives live at data2day.de/<year>/. The Twitter account is the conference's own; LinkedIn is an event page.
Speakers it attracts
The 122 people who spoke at data2day in 2024–2026, by their record at the other conferences we track.
Most established speakers
- Chad Sanderson · Gable.aiKeynoted 2 other conferences, spoke at 6: Big Data LDN, Data Day Texas, Data Council…
- Christian Winkler · datanizingKeynoted 1 other conference, spoke at 2: Minds Mastering Machines (M3), MLCon (ML Conference)
- Matthias Niehoff · codecentricSpoke at 5 other conferences: PyData, QCon, Berlin Buzzwords…
- Sohan Maheshwar · AuthZedSpoke at 5 other conferences: AI Engineer (World's Fair, Summit and regional editions), PyData, AWS re:Invent…
- Daniel Seybold · benchANTSpoke at 3 other conferences: AWS re:Invent, Berlin Buzzwords, Percona Live
- Dennis Schulz · TNGSpoke at 3 other conferences: PyData, Budapest Data+AI Forum, Minds Mastering Machines (M3)
- Evgeniya Alekseeva · Daikin EuropeSpoke at 3 other conferences: dataMinds Connect, Budapest Data+AI Forum, DataGrillen
- Lexy Kassankeynote here · DatabricksSpoke at 3 other conferences: CDAO (Chief Data & Analytics Officer) Summits, Data + AI Summit, QCon
- Oliver ZeigermannSpoke at 3 other conferences: MLCon (ML Conference), Minds Mastering Machines (M3), ScaledML (Scaled Machine Learning Conference)
- Bernd Fondermann · brainloungeSpoke at 2 other conferences: MLCon (ML Conference), Minds Mastering Machines (M3)
- Bertram Sändig · ontoluxSpoke at 2 other conferences: Berlin Buzzwords, Minds Mastering Machines (M3)
- Christian Hidber · bSquareSpoke at 2 other conferences: MLCon (ML Conference), Minds Mastering Machines (M3)
Activity by year
Sponsor companies per year
Distinct companies sponsoring any event that year.
- Complete list
Speakers per year
Distinct people on stage at any event that year; same year axis as sponsors.
Events
| Dates | Event | Place | Format / status | Attendance | Sponsors | Speakers |
|---|---|---|---|---|---|---|
| Oct 6–8, 2026 | data2day 2026 | Cologne, Germany | — | 4 | 54 | |
| Nov 3–5, 2025 | data2day 2025 | Karlsruhe, Germany | — | 5 | 52 | |
| Sep 17–19, 2024 | data2day 2024 | Heidelberg, Germany | — | 4 | 52 | |
| Oct 11–13, 2023 | data2day 2023 | Karlsruhe, Germany | — | 6 | 53 | |
| Sep 19–21, 2022 | data2day 2022 | Karlsruhe, Germany | — | 6 | 51 | |
| Oct 22–24, 2019 | data2day 2019 | Ludwigshafen am Rhein, Germany | — | 6 | 60 |
Attendance over time
No attendance figures recorded
Most frequent speaker companies
Speaker appearances across all events, by the speaker's company.
Similar conferences
Conferences with the most similar speaker mix: their speakers come from the same companies. Bars are cosine similarity on a 0–1 scale; between conferences even the closest pairs share only part of their crowd.
- Minds Mastering Machines0.33
- DACH AI, Data Analytics & Insights Summit0.09
- PyData0.08
- Berlin Buzzwords0.06
- MLCon0.06
8 Cluster: inovex · open knowledge · TNG crowd →
Sponsors over the years
Top 20 of 20 sponsoring companies, ranked by years sponsored. Each cell shows the highest tier that year; hover for the events.
- Gold
- Silver
- Bronze