Sustainability conferences in Hungary in 2026

Here’s SustainabilityOnline’s guide to the top sustainability conferences and events taking place in Hungary over the coming year. This guide will be updated as and when new events are announced – check back regularly for updates. Other events taking place around Europe can be found here.

Event: International Conference on Sustainability and Environmental Technology (IC-SET 2026)
Date(s): 19–20 February 2026
Location: Budapest
Website: https://hongariamuhammadiyah.id/ic-set-2026/

IC-SET 2026 is set to be a platform for researchers, educators, and technologists to share insights and advancements in sustainability and environmental technology. The conference will cover topics such as renewable energy systems, environmental monitoring, green engineering, waste management, urban sustainability, and technology policy. It is organised by Eötvös Loránd University and offers both in-person and online participation options.

Event: Transport Research Arena (TRA 2026)
Date(s): 18-21 May 2026
Location: Budapest
Website: https://traconference.eu/

Transport Research Arena 2026 is Europe’s flagship transport research and innovation conference, bringing together academia, industry, policymakers, startups, and civil society to explore the future of mobility. Initiated by the European Commission and major transport stakeholders, TRA is the continent’s largest conference dedicated to transport and mobility research across all modes. The 2026 edition in Budapest will focus on ‘Re-Generation in Transport’, highlighting user-centred mobility, transport decarbonisation, resilient infrastructure planning, digitalisation, automation, data-driven transport systems, and next-generation mobility solutions.

Event: Global Sustainable Fashion Week (GSFW) 10th Anniversary Jubilee 2026
Date(s): September 2026 (Exact dates TBC)
Location: Budapest
Website: https://gsfashionweek.com/10thgsfw/

The Global Sustainable Fashion Week (GSFW) 10th Anniversary Jubilee 2026 marks a milestone edition of the international platform dedicated to advancing circularity and responsible innovation in the fashion and textile industries. Taking place in Budapest, highlights of the event will include an International Professional Conference focused on circular and eco-conscious best practices; an Edu & Business Day, highlighting the newly launched GSFW EduPlatform; the 10th Jubilee International Gala Fashion Show showcasing ethical couture from around the world; and an Innovation Exhibition highlighting the winners of the Circular Fashion Contest and global textile-tech advancements.

Event: Sustainable World 2026
Date(s): 8 September 2026
Location: Budapest, Hungary
Website: https://www.portfolio.hu/en/events/conference-economy/sustainable-world-2026/2039/overview#

Sustainable World 2026 is a major business conference on sustainability, ESG and the green economy, bringing together corporate leaders, investors, policymakers and sustainability professionals. Organised by Portfolio, the event will examine the latest developments in ESG regulation, green finance, energy transition, climate adaptation, circular economy and sustainable business strategy.

Event: 53rd World Groundwater Congress of the International Association of Hydrogeologists (IAH 2026)
Date(s): 14–18 September 2026
Location: Budapest
Website: https://iah2026budapest.com/

IAH 2026 is the 53rd World Groundwater Congress organised by the International Association of Hydrogeologists. The event will include four days of scientific sessions and one day of a field trip focused on groundwater as a critical resource. It brings together experts, researchers, and professionals to discuss groundwater’s role in environmental sustainability, resource management, and societal well-being. The congress is hosted by the Hungarian National Chapter and takes place at the Budapest Congress Center.

Event: 3rd Global Summit on Climate Change & Environmental Sustainability
Date(s): 28–29 September 2026
Location: Budapest, Hungary
Website: https://climatechange.sci-synopsisconferences.com/

The 3rd Global Summit on Climate Change & Environmental Sustainability is an international scientific conference that brings together researchers, academics, policymakers, industry professionals and environmental practitioners to discuss emerging challenges and solutions in climate science and sustainability. Held under the theme ‘Catalyzing Climate Action: Innovation, Impact, and Global Unity’, the programme will cover a broad range of topics including climate adaptation, biodiversity, renewable energy, carbon reduction, circular economy, climate finance, environmental engineering, sustainable water management and technology-driven climate solutions.

Event: Climate Change Conference 2026
Date(s): 28–29 September 2026
Location: Budapest
Website: https://climatechangeconferences.org/

The Climate Change Conference 2026 will bring together researchers, policymakers, industry professionals, and practitioners to discuss practical responses to climate change. The conference will focus on innovation, environmental sustainability, and international collaboration, with sessions covering scientific research, policy approaches, and applied solutions aimed at supporting climate action and long-term resilience.

Event: 2nd International Conference on Recycling and Waste Management
Date(s): 28–29 September 2026
Location: Budapest
Website: https://scisynopsisconferences.com/recycling-wastemanagement/

This conference will bring together industry leaders, researchers, policymakers, and environmental advocates to discuss advancements in recycling and sustainable waste management. The event includes keynote sessions, interactive panels, and workshops aimed at promoting collaboration and practical solutions for a circular economy. It will be hosted at the Radisson Hotel Budapest.

Event: ENVIRONTEC powered by ÖKOINDUSTRIA 2026
Date(s): 7–9 October 2026
Location: Budapest
Website: https://environtec.hu/en/

ENVIRONTEC 2026 (pictured) is an international trade exhibition focused on environmental technology, waste, water, and sustainability. The event, organised by HUNGEXPO in cooperation with the Hungarian Association of Environmental Enterprises and Messe & Marketing Michael Pittscheidt, will bring together industry professionals to showcase innovations, discuss EU regulations, and explore solutions for environmental protection and sustainable development.

Event: Energy Investment Forum 2026
Date(s): 8 October 2026
Location: Budapest, Hungary
Website: https://portfolio.hu/rendezvenyek/energy-investment-forum

Energy Investment Forum 2026 is Portfolio’s flagship energy conference, bringing together senior executives, investors, regulators and policymakers to discuss the future of the energy sector. The event will explores the strategic challenges and opportunities shaping Europe’s energy transition, including decarbonisation, electrification, energy security, renewable energy, electricity storage, digitalisation, AI, regulatory developments and investment.

Event: 4th Conference on Sustainability (COS2026)
Date(s): 9–11 November 2026
Location: Győr, Hungary
Website: https://cos.sze.hu/

The 4th Conference on Sustainability (COS2026) will bring together researchers, academics, industry professionals and policymakers to exchange knowledge on sustainable technologies, systems and development. Organised by the Sustainability Competence Center at Széchenyi István University, the conference will provide an international forum for presenting research, discussing practical applications and exploring emerging approaches to sustainability.

Event: Solarplaza Summit Hungary
Date(s): 2026 (exact dates TBD)
Location: Budapest
Website: https://www.solarplaza.com/event/solarplaza-summit-hungary/

The Solarplaza Summit Hungary 2026 will convene leading IPPs, asset owners, investors, and experts in the photovoltaic (PV) and battery energy storage system (BESS) sectors. The conference will focus on business models, investment opportunities, revenue strategies, energy trading, bankability, policy developments, and technological innovations.

If there are any other events you think should be on our list, don’t hesitate to get in touch with us here.