Sustainability conferences in the United States in 2026

Here’s SustainabilityOnline’s guide to the top sustainability conferences and events taking place in the United States 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: POWERGEN 2026
Date(s): January 20–22, 2026
Location: San Antonio, TX
Website: https://www.powergen.com/

POWERGEN is a conference aimed at energy generation professionals, bringing together power producers, utilities, OEMs, EPCs, and major energy users. The 2026 event will features a diverse technical programme covering nuclear advancements, microgrid innovation, hydropower trends, and plant performance optimisation.

Event: Cleantech Forum North America
Date(s): January 26–28, 2026
Location: San Diego, CA
Website: https://cleantech.com/event/cleantech-forum-na/agenda/

Cleantech Forum North America will bring together climate-tech innovators, investors, and corporate sustainability teams to explore emerging clean technologies, adaptation solutions, and market trends. The forum will seek to provide actionable insights for scaling technologies, building partnerships, and advancing sustainable solutions, as well as highlighting the Global Cleantech 100 companies.

Event: Stormwater USA
Date(s): February 2–3, 2026
Location: Orange County, CA
Website: https://www.usa.stormwater-summit.com/

Stormwater USA 2026 will convene stormwater professionals, environmental engineers, and municipal planners to explore innovative solutions in stormwater management. The two-day event will highlight green infrastructure, low-impact development, AI-enabled smart stormwater systems, advanced treatment technologies, regulatory compliance, and climate-resilient infrastructure.

Event: EBA 2026 Annual Conference
Date(s): February 9–12, 2026
Location: San Diego, CA
Website: https://www.envirobank.org/

Taking place in San Diego, the Environmental Bankers Association (EBA) Annual Conference 2026 will gather professionals in environmental finance, banking, and sustainability. The four-day event will include technical sessions, networking receptions, volunteer activities, and an exhibitor showcase. Attendees can gain insights into financing environmental projects, regulatory compliance, and industry trends.

Event: GreenBiz 26
Date(s): February 17–19, 2026
Location: Phoenix, AZ
Website: https://trellis.net/events/greenbiz/

GreenBiz 26 is aimed at corporate sustainability leaders, innovators, policymakers, and ESG strategists. The conference will focus on advancing circular systems, climate strategy, data disclosure, decarbonisation, sustainable finance, and nature regeneration.

Event: NAREIM 2026 Sustainability Meeting
Date(s): March 3–4, 2026
Location: Austin, TX
Website: https://members.nareim.org/meetings/Details/sustainability-1429696

Organised by the National Association of Real Estate Investment Managers (NAREIM), the NAREIM 2026 Sustainability Meeting will bring together real estate investment managers and industry partners to discuss sustainability practices, climate risk, decarbonisation, AI and technology challenges, and investor expectations.

Event: Wall Street Green Summit
Date(s): March 11–12, 2026
Location: New York, NY
Website: https://www.thewallstreetgreensummit.com/

Taking place in March, Wall Street Green Summit 2026 is aimed at finance, investment, and sustainability professionals focused on climate-tech investing, carbon markets, and clean energy solutions. The summit will focus on the energy transition, climate risk management, carbon trading, sustainable supply chains, and nature-based solutions, bringing together investors, innovators, and industry leaders driving decarbonisation strategies.

Event: REMADE Circular Economy Tech Summit & Conference 2026
Date(s): March 11–12, 2026
Location: Washington, DC
Website: https://www.manufacturingusa.com/events/2026-remade-circular-economy-tech-summit-conference

Hosted at the National Academy of Sciences, the 2026 REMADE Circular Economy Tech Summit & Conference focuses on sustainable manufacturing and circular economy solutions. The two-day conference will bring together industry leaders, researchers, and policymakers to discuss energy efficiency, material reuse, supply chain resilience, and manufacturing competitiveness.

Event: TSC Summit 2026
Date(s): March 17–19, 2026
Location: Tempe, AZ
Website: https://sustainabilityconsortium.org/tsc-summit/

Organised by the Sustainability Consortium, the TSC Summit will gather sustainability and finance leaders to build bridges between environmental and financial priorities. Attendees will explore ways to integrate sustainability into capital allocation, risk management, investor relations, and value-creation strategies across the retail, consumer goods, food, and agriculture sectors.

Event: Responsible Investment Forum: New York
Date(s): March 18–19, 2026
Location: New York, NY
Website: https://www.peievents.com/en/event/responsible-investment-forum-new-york/

Responsible Investment Forum: New York 2026 is aimed at private markets leaders, including institutional investors, fund managers, and sustainability professionals, and will feature deep-dive sessions on strategy, value creation, climate, nature, innovation, and risk management. Attendees can explore how sustainability drives portfolio performance, manage regulatory and climate risks, benchmark strategies across asset classes, and engage in networking opportunities with over 400 peers and global investors.

Event: Energy Storage
Date(s): March 24–25, 2026
Location: Dallas, TX
Website: https://storageusa.solarenergyevents.com/

Energy Storage is a two-day event focused on advancing energy storage technologies, strategies, and business solutions. The conference will gather investors, developers, utilities, policymakers, and technology providers, focusing on asset optimisation, supply risk, and resource planning.

Event: DC Climate Week 2026
Date(s): April 20–26, 2026
Location: Washington, DC
Website: https://www.dcclimateweek.com/

Taking place in April, DC Climate Week (DCCW) is a city-wide, community-organised series of events, exhibitions, tours, screenings, and gatherings that explore climate challenges and solutions. It will brings together policymakers, sustainability experts, nonprofits, entrepreneurs, and civic-minded residents to foster collaboration, innovation, and climate action. Activities will include educational programs, networking opportunities, and interactive experiences designed to empower participants, build community, and drive measurable impact on sustainability and climate resilience.

Event: Sustainability LIVE: The US Summit + Awards
Date(s): April 21–22, 2026
Location: Chicago, IL
Website: https://sustainabilitymag.com/events/sustainability-live/sustainability-live-chicago-2026

Sustainability LIVE: The US Summit + Awards 2026 will bring together leaders helping to drive sustainability across their organisations. Co-located with Procurement & Supply Chain LIVE, the two-day conference and expo will deliver insights, connections, and practical takeaways for advancing climate action, circularity, responsible growth, and culture change. The agenda includes 50+ expert speakers, 10 focused content themes, and four executive workshops. The first day concludes with The US Awards, which will celebrate outstanding achievements in sustainability, procurement, and supply chain.

Event: Sustainable Finance Americas Forum
Date(s): April 22, 2026
Location: New York, NY
Website: https://www.spglobal.com/ratings/en/events/in-person/2026-sustainable-finance-americas-forum

Organised by S&P Global Ratings, the Sustainable Finance Americas Forum will bring together senior leaders and industry experts to discuss innovations and challenges in sustainable finance across the Americas. The one-day, in-person event will explore the latest trends, best practices, and emerging opportunities in the sustainable finance sector.

Event: Corporate Citizenship Summit 2026
Date(s): April 23–24, 2026
Location: New York, NY
Website: https://www.conference-board.org/events/corporate-citizenship

The Corporate Citizenship Summit 2026, organised by The Conference Board, will bring together senior executives and thought leaders to explore sustainability, social impact, and responsible governance. On the agenda are topics such as AI, regulation, decarbonisation, workforce stability, and corporate transparency, as well as a focus on integrated approaches to corporate citizenship.

Event: Environmental Markets Conference 2026 (EMC 2026)
Date(s): April 27–30, 2026
Location: Chattanooga, TN
Website: https://environmentalmarketsconference.com/agenda-2026/

EMC 2026 will welcome experts, policymakers, investors, and industry leaders to explore environmental markets, conservation finance, and ecological investment opportunities. The four-day event will include workshops, field visits, keynote presentations, breakout sessions and more – all designed to advance solutions in environmental governance, sustainable infrastructure, and habitat investment.

Event: ClimaTech 2026
Date(s): May 4–5, 2026
Location: Boston, MA
Website: https://climatech.live/

Taking place at the Boston Center for the Arts, ClimaTech 2026 will bring together industry leaders, innovators, and climate technology experts, focusing on on breakthrough technologies, sustainable solutions, and partnerships that drive measurable climate impact.

Event: Responsible Business USA 2026
Date(s): May 5–6, 2026
Location: Boston, MA
Website: https://www.reutersevents.com/sustainable-business/responsible-business-usa

Organised by Reuters Events, Responsible Business USA 2026, will bring together senior sustainability executives to strengthen the concept of sustainability as a strategic driver. The two-day event will focus on strategy, reporting, compliance, supply chain, and data/AI, offering practical insights and peer benchmarking to support sustainable business growth and resilience.

Event: Net Zero USA 2026
Date(s): May 6–7, 2026
Location: San Diego, CA
Website: https://events.reutersevents.com/sustainable-business/net-zero-usa

Net Zero USA 2026, organised by Reuters Events, will convene senior sustainability leaders to address climate risks, decarbonisation, and supply chain resilience. A series of panel discussions, workshops and roundtables will focus on actionable strategies for achieving net-zero operations, managing Scope 1, 2, and 3 emissions, leveraging data and AI, and integrating sustainability with business performance.

Event: Markets vs. Mandates: Promoting Environmental Quality and Economic Prosperity
Date(s): May 12, 2026
Location: Stanford, CT
Website: https://www.hoover.org/events/markets-vs-mandates-promoting-environmental-quality-and-economic-prosperity-2026

Organised by the Hoover Institution, Markets vs. Mandates 2026 is a one-day conference examining how markets and regulations address tradeoffs between environmental concerns, economic growth, and individual freedom. The event will include sessions on technology, trade, and entrepreneurship, with discussions on tariffs, federal versus state regulations, and the role of AI in energy demand and environmental monitoring.

Event: Sustainability Week US
Date(s): June 2026 (exact dates TBC)
Location: New York, NY
Website: https://events.economist.com/sustainability-week-usa/

Sustainability Week US (pictured), organised by Economist Impact, will bring together business leaders, policymakers, and innovators to explore energy innovation, the energy transition, and strategies for environmental progress. The event will features case studies, interactive sessions, and discussions designed to help companies boost resilience, cut emissions, and capitalise on opportunities in a rapidly changing market. Around 500 sustainability professionals across multiple industries are expected to be in attendance.

Event: ICETSYP-26 – International Conference on Economic Transformation and Sustainability Pathways
Date(s): June 4–5, 2026
Location: New York, NY
Website: https://efstm.com/event/index.php?id=100368717&source=aca

ICETSYP-26 will bring together researchers, students, entrepreneurs, and industry professionals to advance economic transformation and sustainability pathways. Participants will be able to explore sustainable development solutions aligned with the UN Sustainable Development Goals (SDGs) and collaborate on policies and strategies for global impact.

Event: SUNY Sustainability Conference 2026
Date(s): June 9–11, 2026
Location: Farmingdale, NY
Website: https://www.farmingdale.edu/events/2026/2026-06-09-suny-sustainability-conference.print.shtml

The SUNY Sustainability Conference 2026, hosted by Farmingdale State College, will bring together sustainability professionals, students, and educators from across New York State higher education institutions. The event will features educational sessions, success story sharing, and discussions on emerging sustainability issues. It will also play host to a series of workshops aimed at advancing sustainability initiatives in academia and beyond.

Event: 2026 State of the Science Summit – Reducing Methane from Animal Agriculture
Date(s): June 16–18, 2026
Location: Davis, CA
Website: https://clear.ucdavis.edu/news/save-date-2026-state-science-summit

Hosted by the UC Davis CLEAR Center, College of Agricultural and Environmental Sciences, Spark Climate Solutions, and the California Department of Food and Agriculture, this three-day summit will focuse on mitigating methane emissions from livestock. Researchers, policymakers, industry leaders, and producers will explore innovations in feed additives, genetics, and practical strategies to help the dairy and beef sectors meet climate goals.

Event: USSEE Biennial Conference
Date(s): June 18–21, 2026
Location: Oberlin, OH
Website: https://www.isecoeco.org/2026-ussee-biennial-conference/

The 2026 USSEE Biennial Conference will bring together academics, practitioners, and community organisers to address complex social-ecological challenges. Hosted at Oberlin College in Ohio, the conference will focus on ecological economics, regenerative agriculture, climate change, sustainable energy, and social justice.

Event: Trellis Impact 2026
Date(s): June 23–25, 2026
Location: San Francisco, CA
Website: https://trellis.net/events/trellis-impact/

Trellis Impact 2026 will bring together leaders helping to drive innovation in sustainable business, spanning carbon, energy, circular economy, climate tech, and more. Over three days at Moscone West in San Francisco, attendees will gain insights from 500+ speakers across 100+ sessions, explore practical solutions for decarbonisation, carbon removal, circular materials, and clean energy, and connect with 4,000+ peers, including corporate decision-makers, investors, and climate-tech innovators.

Event: Sustainability in Manufacturing Summit 2026
Date(s): June 2026 (exact dates TBC)
Location: Chicago, IL
Website: https://sustainability-in-manufacturing.com/

The Sustainability in Manufacturing Summit (formerly known as the ESG in Manufacturing Summit) is a dedicated event for sustainability leaders in the manufacturing sector. The summit will bring together industry experts to share best practices, case studies, and actionable strategies to future-proof policies, drive product circularity, enhance supply chain transparency, and build lasting impact.

Event: Aspen Institute Business & Society Summit
Date(s): July 7–9, 2026
Location: Aspen, CO
Website: https://www.aspeninstitute.org/programs/business-and-society-program/summit/

The Aspen Institute Business & Society Summit 2026 is an invitation-only gathering of 200+ senior leaders, including corporate executives, long-term investors, governance experts, NGO leaders, and academic luminaries. The Summit seeks to foster dialogue, playing host to a series of working sessions that will examine emerging sustainability and social impact issues. Participants can explore strategies for accelerating sustainable innovation, rethinking stakeholder engagement, and building trust in the business sector, with a focus on the long-term health of society.

Event: ACLCA Conference 2026
Date(s): September 15–17, 2026
Location: San Diego, CA
Website: https://aclcaconference.org/travel/

The American Center for Life Cycle Assessment (ACLCA) Conference 2026 will bring together sustainability and LCA professionals for three days of plenary sessions, technical presentations, networking, and awards receptions, with the focus on life cycle assessment, sustainable products, and environmental strategies. Pre-conference workshops on September 14 will provide professional development opportunities.

Event: Climate Week NYC
Date(s): September 20–27, 2026
Location: New York, NY
Website: https://www.climateweeknyc.org/

Organised by the Climate Group, Climate Week NYC is arguably the biggest event on the environmental calendar in the US, bringing together heads of state, global business leaders, philanthropic organisations, and civil society to accelerate climate action at scale. The week-long event will feature a diverse program of sessions, panels, and activations addressing energy, industry, finance, food, transport, nature, and climate solutions. Participants can gain insights, share best practices, and collaborate on strategies to drive impactful climate initiatives globally.

Event: ASES National Solar Conference
Date(s): October 19–21, 2026
Location: Austin, TX
Website: https://ases.org/conference/

The ASES National Solar Conference 2026, hosted by the American Solar Energy Society, will bring together solar and clean energy professionals to explore emerging technologies, market opportunities, and strategies for expanding the global reach of renewable energy. Attendees can participate in keynote sessions, panel discussions, and hands-on workshops designed to foster collaboration, innovation, and actionable solutions in the solar energy sector.

Event: Responsible Business 2026 Annual Conference
Date(s): November 16–19, 2026
Location: San Jose, CA
Website: https://www.responsiblebusiness.org/

Organised by the Responsible Business Alliance (RBA), the Responsible Business 2026 Annual Conference will bring together member and non-member companies alongside representatives from industry, government, intergovernmental organisations, and civil society. The event, which combines the RBA and Responsible Minerals Initiative (RMI) annual conferences into a single programme, will focus on labour standards, environmental responsibility, and mineral supply chains across global value chains.

Event: World Class ESG Leaders Conference 2026
Date(s): December 8–9, 2026
Location: Portland, OR
Website: https://www.worldclassbusinessleaders.com/events/WCESG25

The 12th International Annual World Class ESG Leaders Conference will convene senior corporate sustainability and ESG decision-makers to explore next-generation strategies, innovation, and environmental stewardship. With a limited audience of 150 attendees, and 100 companies represented, key themes at the conference will include sustainable materials, circular economy solutions, ESG reporting and governance, renewable energy, water stewardship, AI and environmental impact, and designing nature-positive infrastructure.

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