A Berlin sustainability festival that ran annually from 2019 through 2025, combining conference, exhibition, and the GREEN AWARDS ceremony, now suspended after its organiser, GREENTECH SHOW GmbH, entered liquidation in January 2026.
The Greentech Festival (GTF) was an annual B2B conference, exhibition, and awards platform held in Berlin, focused on sustainable technologies and business sustainability. Founded in 2018 by former Formula 1 champion Nico Rosberg together with Marco Voigt and Sven Krüger, it held its first Berlin edition at Tempelhof Airport in May 2019 and moved to Messe Berlin in subsequent years. The festival convened corporates, investors, startups, and policymakers across renewable energy, clean technology, circular economy, and sustainable mobility. Its last confirmed edition ran 20 to 22 May 2025. In mid-2025 the organiser announced it was discontinuing the large-scale festival format, and the operating entity, GREENTECH SHOW GmbH, entered formal liquidation in January 2026. No 2026 edition, GTF Forum successor event, or future date has been confirmed as of this verification.
The Greentech Festival positioned itself as a platform where sustainability-focused actors across industry, finance, policy, and technology converged. Its three-day format blended large-format conference sessions with smaller roundtables, a curated start-up zone, pitch competitions, and the flagship GREEN AWARDS ceremony. The event was conducted in both English and German, reflecting its European base and international audience. Attendance peaked at approximately 14,000 visitors in 2024 before falling to roughly 7,000 specialist visitors in the 2025 edition, a decline the organiser attributed to tightened corporate sustainability budgets and reduced appetite for broad-reach event formats. It sits within the sustainability circuit tracked by Events Index, alongside events such as ChangeNOW in Paris.
Attendees comparing the sustainability and impact-investing circuit elsewhere should track ChangeNOW in Paris, which remains active and is the closest scale comparison tracked by Events Index, alongside the wider set of upcoming EMEA events.
The programme addressed the following thematic areas:
More than 300 speakers presented across the 2025 edition's six stages, according to organiser figures relayed by VC Magazin; a full named speaker list beyond the figures above is not publicly disclosed as of verification.
More than 100 partner companies were confirmed for the 2025 edition. Named partners identified in organiser and partner reporting include:
Whether any of these partnerships carry over to a future format is not confirmed; no successor event, date, or partner roster has been published as of this verification.
Coverage of the 2025 edition, the festival's last confirmed run, splits into distinct angles depending on outlet type:
The organiser's own AI x Green Transition summit format with Handelsblatt, run alongside the festival in 2024 and renamed the Handelsblatt Green AI Summit for a planned 2025 edition, was itself cancelled ahead of its scheduled May 2025 date; Handelsblatt directed attendees instead to its unrelated November 2025 AI summit in Munich. This cancellation predates and is consistent with the broader wind-down documented above.
Journalist accreditation figures and total media coverage volume for the 2025 edition are not publicly disclosed as of verification.
| Attendees | 7,000+ specialist visitors (organiser figure) |
| Speakers | 300+ |
| Partners | 100+ |
| Programme stages | 6 |
| Duration | 3 days |
| Languages | English, German |
| Start-Up Land companies | 35 |
| Organiser status | In liquidation since 16 January 2026 |
No confirmed edition is scheduled. The organiser, GREENTECH SHOW GmbH, publicly announced in mid-2025 that it was discontinuing the large-scale festival format, and the company itself entered formal liquidation on 16 January 2026, according to the German commercial register. Berlin's official trade fair listing states directly that the event "is no longer taking place," current as of its 12 November 2025 update. Some third-party ticketing and calendar sites continued to list placeholder June 2026 dates after these announcements; those listings are not organiser-confirmed.
The Greentech Festival was an annual B2B conference, exhibition, and awards event held over three days in Berlin. It combined large plenary sessions, expert roundtables, a curated start-up area, pitch competitions, and the GREEN AWARDS ceremony, all structured around the intersection of business and sustainability.
Yes, when it ran. The event was conducted in both English and German, and the programme was designed to serve an international audience alongside the domestic German corporate and policy community.
The event covered renewable energy, clean technology, circular economy, sustainable transport, industrial decarbonisation, and sustainability strategy and ESG reporting. It spanned corporate, startup, investor, and policy audiences active in these fields. For current EMEA sustainability and clean technology events with confirmed future dates, see the energy transition circuit.
The Greentech Festival's trajectory, from roughly 14,000 visitors in 2024 to 7,000 in 2025 to organiser liquidation by January 2026, makes it a useful reference point for how quickly a flagship sustainability event can lose viability once corporate sponsorship budgets tighten. Its wind-down leaves ChangeNOW as the more directly comparable large-scale fixture on the sustainability circuit for organisations still seeking a pan-European sustainability convening at similar scale.
Registration is not currently open. No 2026 or future edition has been announced, so no ticketing tiers, pricing, or registration URL are currently active. The pricing structure below reflects the last confirmed edition (2025) for historical reference only and should not be treated as current:
| Ticket type (2025 edition, historical) | Price (EUR) |
|---|---|
| Delegate (Standard) | 200 to 800, depending on tier and timing |
| VIP pass | 1,000 |
| Virtual pass | 150 |
| Student pass | 100 |
| Startup pass | 100 |
When the festival ran, it incorporated a structured matchmaking programme and advance meeting scheduling, allowing attendees to identify and book one-to-one meetings before the event opened, a feature particularly used by the investor and startup audience segments. The VIP pass tier included access to investor matchmaking sessions alongside hosted receptions. No networking programme is currently active given the absence of a scheduled edition.
The Greentech Festival organised the GREEN AWARDS, a flagship awards ceremony recognising outstanding achievement across sustainability and clean technology categories, with Dr. Stefan Franzke of Berlin Partner for Business and Technology serving as jury head for 14 consecutive years through the 2025 edition. The 2025 winners were DeepDrive (mobility category), 1Komma5° (energy category), and Dunia Innovations (industry category). Audi held the role of founding partner for the awards specifically. Whether the GREEN AWARDS will continue under any successor format is not confirmed as of this verification.
The last confirmed edition (2025) took place at Messe Berlin, Messedamm 22, 14055 Berlin, Germany, a large-format convention and exhibition centre in the west of Berlin. The first Berlin edition in 2019 was held at Tempelhof Airport before the event moved to Messe Berlin.
Recap coverage and press materials for the 2025 and earlier editions remain available through the organiser's press channel and third-party recap articles cited in this fiche. No dedicated on-demand or replay platform for session recordings is publicly disclosed as of verification.
No public guidance on transitioning existing partnerships to a successor format has been published by the organiser as of this verification. Organisations with an active sponsorship or partnership agreement should contact GREENTECH SHOW GmbH's liquidation administrators directly through the German commercial register filing (District Court of Charlottenburg, Berlin, HRB 251353 B) for status.
| Official website | https://greentechfestival.com/ |
| Berlin official trade fair status | https://www.berlin.de/en/trade-fairs/5949508-7918797-greentech-festival.en.html |
| Commercial register filing (liquidation) | https://www.northdata.com/Greentech+SHOW+GmbH,+Potsdam/HRB+33400 |
| Twitter / X | @greentech_fest |
| Organiser LinkedIn | https://de.linkedin.com/company/greentech-festival |
| Energy transition circuit (Events Index) | /energy-transition.html |
| ChangeNOW, Paris (Events Index) | /changenow-summit.html |
| Upcoming EMEA events (Events Index) | /upcoming.html |