Top Sustainability, Social Entrepreneurship and Impact Investing Conferences to Attend

The impact economy is increasingly global, bringing together entrepreneurs, investors, philanthropists, nonprofit leaders, sustainability professionals, policymakers, corporations, and innovators working on some of the world’s most pressing social and environmental challenges.

Across impact investing, climate technology, social entrepreneurship, sustainable business, philanthropy, and nonprofit innovation, conferences remain one of the best places to discover emerging ideas, meet potential partners, find investment opportunities, and learn from people building practical solutions.

Causeartist has curated this guide to some of the most important sustainability events, social entrepreneurship conferences, impact investing conferences, and impact economy gatherings happening around the world.

Some events are highly focused on capital and investing. Others bring together founders, corporations, nonprofits, foundations, governments, and ecosystem builders. What they share is a focus on using business, technology, innovation, and capital to create measurable positive impact.

Last updated: August 2026

Impact Investing and Social Finance Conferences

GIIN Impact Forum

Amsterdam, Netherlands

The GIIN Impact Forum is one of the most important global gatherings for impact investing professionals.

Organized by the Global Impact Investing Network, the annual forum brings together investors, asset managers, foundations, development finance institutions, family offices, and other organizations working to grow the scale and effectiveness of impact investing.

The 2026 forum takes place in Amsterdam and includes more than 50 workshop sessions, with organizations represented from more than 60 countries. Programming explores impact investing strategies, impact measurement and management, capital allocation, market development, and approaches to scaling investment solutions that generate measurable outcomes for people and the planet.

For investors already active in the sector, this is one of the strongest opportunities to connect directly with the global impact investing ecosystem.

Best for: Impact investors, asset managers, foundations, family offices, development finance institutions

SOCAP

San Francisco, California

SOCAP is one of the longest running and most influential gatherings at the intersection of money and meaning.

The conference brings together impact investors, founders, philanthropists, foundations, nonprofits, financial institutions, policymakers, and ecosystem builders interested in using capital and markets to address social and environmental challenges.

SOCAP25 attracted a broad global community of funders and founders alongside participants from philanthropy, government, finance, science, education, nonprofits, and community organizations. SOCAP26 is the next edition of the flagship conference.

Few conferences provide the same combination of impact investing, entrepreneurship, philanthropy, catalytic capital, and ecosystem building.

Best for: Impact founders, investors, foundations, fund managers, philanthropists

AVPN Global Conference

New Delhi, India

The AVPN Global Conference is one of Asia’s most important gatherings for social investment and impact capital.

The 2026 conference takes place August 25 to 27 at Bharat Mandapam in New Delhi and brings together funders, investors, policymakers, foundations, corporations, and changemakers from across Asia and beyond.

The conference focuses on practical approaches to inclusive growth, capital mobilization, innovative finance, collaboration, and scaling solutions throughout Asian markets. AVPN describes the gathering as Asia’s largest conference for social investors and impact leaders.

For anyone trying to understand the rapidly developing impact investing and philanthropic landscape across Asia, AVPN should be high on the list.

Best for: Impact investors, foundations, family offices, corporations, policymakers

Impact Days by Impact Europe

Brussels, Belgium

Impact Europe is one of the leading networks supporting investing for impact across Europe.

Impact Days is its flagship convening focused on how different forms of capital can contribute to systems change. The gathering explores the role of capital ranging from concessional funding to commercial investment and how investors can work alongside governments, foundations, corporations, and other stakeholders.

The 2026 edition took place in Brussels on June 9 and 10 and included programming around impact measurement and management as well as the broader European impact capital ecosystem.

Impact Europe has announced that its larger Impact Week gathering will return in early 2027.

Best for: European impact investors, foundations, asset managers, policymakers

Impact Flock

London, UK

Impact Flock is a focused gathering for venture capital investors and limited partners interested in impact.

Co-hosted by ImpactVC and Impact Europe, the 2026 event takes place September 18 in London and is designed around peer discussion rather than traditional conference programming.

Around 100 to 120 participants are expected, with previous attendees including impact venture funds, institutional investors, foundations, development institutions, and corporate venture organizations.

For impact venture investors looking for a smaller and more targeted environment than a major conference, Impact Flock is particularly interesting.

Best for: Impact VCs, LPs, institutional investors, emerging fund managers

Social Entrepreneurship and Impact Innovation Conferences

Skoll World Forum

Oxford, UK

The Skoll World Forum is one of the world’s most recognized gatherings for social entrepreneurship and social innovation.

Organized by the Skoll Foundation, the Forum brings together social entrepreneurs, funders, nonprofit leaders, policymakers, business leaders, storytellers, and other people working on large scale social change.

Programming spans economic inclusion, climate action, health, human rights, gender equity, and other major global issues. Attendance in Oxford is curated, while virtual participation has traditionally been made available to a much broader audience.

The 2026 Skoll World Forum took place April 21 to 24.

For founders and organizations working at the intersection of entrepreneurship and systemic social change, Skoll remains one of the defining events in the sector.

Best for: Social entrepreneurs, foundations, philanthropists, nonprofit leaders, systems change organizations

ChangeNOW

Paris, France

ChangeNOW has grown into one of the largest global gatherings dedicated to solutions for social and environmental challenges.

Held at the Grand Palais in Paris, the summit connects startups, investors, corporations, nonprofits, policymakers, media organizations, and sustainability leaders from around the world.

ChangeNOW reports a community that includes approximately 1,000 solutions, 10,000 companies, 40,000 attendees, participants from 140 countries, and more than 1,000 investors.

The next ChangeNOW summit is scheduled for April 26 to 28, 2027 in Paris.

For Causeartist readers interested in discovering emerging impact startups and scalable solutions, ChangeNOW is one of the strongest events on this list.

Best for: Impact startups, investors, corporations, sustainability professionals, media

Solve at MIT

Cambridge, Massachusetts

Solve at MIT brings together the MIT Solve community, social entrepreneurs, technology innovators, funders, and partners focused on developing and scaling solutions to global challenges.

MIT Solve uses open innovation challenges to identify technology based social enterprises addressing issues across health, learning, economic opportunity, climate, and other areas.

The gathering gives selected innovators opportunities to connect with funders, corporate partners, philanthropic organizations, and other members of the Solve community.

For people interested specifically in technology for good, Solve at MIT remains one of the most relevant gatherings in the social innovation ecosystem.

Best for: Tech for good founders, social entrepreneurs, foundations, corporate innovation teams

Impact UNLIMITED Summit

London, UK

The Impact UNLIMITED Summit brings together founders, nonprofit leaders, investors, corporate changemakers, and other impact focused professionals working to create positive change.

Rather than relying solely on traditional conference presentations, the summit is designed around practical collaboration. Founder and leader stories, facilitated discussions, live challenges, and networking help participants explore how people, technology, skills, and investment can help organizations solve problems and increase their impact.

The audience spans social enterprise, venture capital, philanthropy, nonprofit organizations, corporations, and civil society.

Best for: Impact founders, nonprofit leaders, investors, corporate changemakers

One Young World Summit

Cape Town, South Africa

One Young World brings together emerging leaders from countries around the world working across business, government, nonprofits, entrepreneurship, and social change.

The 2026 One Young World Summit begins November 3 in Cape Town, with the Cape Town International Convention Centre serving as the primary venue.

The summit combines speeches, workshops, networking, mentorship, and opportunities for young leaders to connect with established global leaders.

One Young World is especially relevant for organizations looking to understand the next generation of social entrepreneurs, business leaders, activists, and changemakers.

Best for: Emerging leaders, young founders, nonprofits, corporate leadership programs

Climate and Sustainability Conferences

Climate Week NYC

New York City

Climate Week NYC has become one of the largest and most important climate gatherings in the world.

Organized by Climate Group alongside the United Nations General Assembly, Climate Week NYC connects leaders across business, finance, government, technology, civil society, and local communities.

The 2026 edition runs September 20 to 27 and includes more than 1,000 events attracting over 100,000 attendees across New York City.

Topics span clean technology, energy, finance, transportation, food and agriculture, environmental justice, nature, cities, industry, supply chains, AI, and climate policy.

One important difference from most events on this list is that Climate Week is an ecosystem of gatherings spread across the city rather than a single conventional conference.

Best for: Climate founders, investors, corporate sustainability leaders, policymakers, NGOs

Trellis Impact

San Francisco, California

Trellis Impact brings together climate technology, sustainable finance, circular economy, nature, corporate sustainability, and innovation under one major gathering.

The event evolved from the conference portfolio previously associated with GreenBiz Group, bringing communities around GreenFin, VERGE, Bloom, and Circularity into a more integrated event platform.

Trellis Impact 26 took place June 23 to 25, 2026. The next edition, Trellis Impact 27, is scheduled for May 11 to 13, 2027 at Moscone West in San Francisco.

Trellis says the event brings together more than 2,000 sustainable business leaders, including corporate decision makers, innovators, technology companies, and investors.

Best for: Climate tech founders, sustainability executives, investors, corporations

GreenBiz

San Diego, California

GreenBiz remains a major annual event for corporate sustainability professionals.

Its audience includes executives and practitioners working across sustainability strategy, decarbonization, supply chains, nature, finance, operations, and corporate transformation.

GreenBiz is now part of Trellis Group. The next conference, GreenBiz 27, takes place February 23 to 25, 2027 in San Diego.

GreenBiz is particularly valuable for understanding how large companies are turning sustainability commitments into operational strategies.

Best for: Corporate sustainability teams, climate professionals, consultants, solution providers

World Ocean Summit

The World Ocean Summit, organized by Economist Impact, brings together leaders working across the ocean economy.

Participants typically include businesses, investors, governments, policymakers, scientists, nonprofits, academics, and organizations developing solutions related to ocean conservation and the sustainable blue economy.

Topics include ocean finance, fisheries, marine ecosystems, shipping, offshore industries, technology, conservation, and investment.

For founders and investors working on ocean technology or the blue economy, it is one of the more specialized global gatherings worth following.

Best for: Blue economy founders, ocean investors, governments, conservation organizations

World Water Week

Stockholm, Sweden

World Water Week is one of the leading international gatherings focused on water.

Organized around the challenges facing global water systems, the conference brings together researchers, businesses, policymakers, governments, nonprofits, development organizations, and entrepreneurs.

The event examines water through the lenses of climate resilience, food systems, health, peace, innovation, infrastructure, finance, and sustainable development.

For organizations working on water technology, sanitation, climate adaptation, or water security, few global events have the same depth of expertise.

Best for: Water startups, development organizations, governments, researchers, climate investors

Net Zero Conference

Los Angeles, California

The Net Zero Conference focuses on the transition toward a decarbonized built environment and economy.

Its community spans architecture, energy, buildings, transportation, materials, climate technology, corporate sustainability, and environmental leadership.

The conference is particularly useful for professionals interested in practical implementation rather than high level sustainability commitments alone.

Best for: Architects, climate professionals, building technology companies, sustainability leaders

Sustainable Business and Brand Conferences

Sustainable Brands

Global

Sustainable Brands brings together sustainability professionals, marketers, innovators, product teams, corporate executives, NGOs, and business leaders exploring how sustainability can drive long term business value.

Its flagship 2026 San Diego conference took place June 8 to 10 and focused on integrating sustainability into business strategy, circular business models, resilience, regenerative approaches, governance, products, and brand transformation.

Sustainable Brands also operates international events. Remaining 2026 gatherings include Sustainable Brands Türkiye on September 29 and 30, while additional global events are already appearing on the 2027 calendar.

Best for: Sustainability executives, brand leaders, marketers, innovation teams, corporations

Business of Impact

Lisbon, Portugal

Business of Impact is a corporate focused conference from Impact Europe examining how impact can become part of long term business strategy.

The 2026 gathering takes place September 15 and 16 in Lisbon and focuses on resilience, impact investing, business models, regulation, and competitive advantage.

The conference is particularly relevant for companies moving beyond sustainability reporting toward integrating impact into strategy, capital allocation, and operations.

Best for: Corporate leaders, impact professionals, investors, sustainability executives

Nonprofit and Technology Conferences

Nonprofit Technology Conference

The Nonprofit Technology Conference, commonly known as NTC, is one of the most established gatherings focused on technology within the nonprofit sector.

Organized by NTEN, the event brings together nonprofit professionals, technology providers, fundraisers, digital strategists, marketers, data professionals, and organizational leaders.

Topics commonly include artificial intelligence, fundraising technology, digital communications, cybersecurity, data strategy, accessibility, CRM systems, organizational operations, and emerging technology.

For nonprofits trying to understand how technology can improve their organizations and increase their impact, NTC remains one of the most useful conferences in the sector.

Best for: Nonprofit leaders, technology teams, fundraisers, digital strategists

See Change Sessions

Burlington, Vermont

See Change Sessions is difficult to place into a traditional conference category, which is part of its appeal.

The gathering combines conversations around technology, business, culture, sustainability, creativity, investment, and global challenges in a more intimate environment.

Rather than relying entirely on stages and presentations, the experience is designed to encourage conversations between people with different backgrounds and perspectives.

It is particularly interesting for founders, investors, creatives, business leaders, and people working across disciplines who want something different from a traditional industry conference.

Best for: Founders, creatives, investors, business leaders, innovators

How to Choose the Right Impact Conference

There are now hundreds of conferences using terms such as sustainability, ESG, impact, climate, purpose, and social innovation. They are not interchangeable.

Before registering, think about what you actually want from the event.

If you are raising capital for an impact startup, conferences such as SOCAP, ChangeNOW, GIIN Impact Forum, and Trellis Impact may offer the strongest investor exposure.

If you are an impact investor or fund manager, prioritize GIIN Impact Forum, SOCAP, AVPN, Impact Europe gatherings, and Impact Flock.

If you are a social entrepreneur, Skoll World Forum, ChangeNOW, Solve at MIT, SOCAP, and Impact UNLIMITED are especially relevant.

If you work inside a corporate sustainability or innovation team, GreenBiz, Sustainable Brands, Trellis Impact, Climate Week NYC, and Business of Impact are strong options.

If you work within a foundation or philanthropic organization, Skoll, AVPN, SOCAP, GIIN, and Impact Europe offer some of the best opportunities to understand new funding models and meet organizations deploying capital for impact.

And if your work is focused on a particular challenge such as water, oceans, climate technology, or nonprofit technology, sector specific conferences can often provide more value than larger general purpose events.

Why Impact Conferences Still Matter

The impact economy increasingly operates across traditional boundaries.

A climate technology startup may need venture capital, government partnerships, corporate customers, philanthropic catalytic funding, and relationships with nonprofit organizations to scale.

A foundation may increasingly use grants, guarantees, recoverable grants, impact investments, and other financial tools rather than relying on traditional philanthropy alone.

Corporations are working directly with startups. Investors are experimenting with blended finance. Nonprofits are adopting technology built by entrepreneurs. Governments are helping create markets through procurement, regulation, tax incentives, and public investment.

The best impact conferences bring these communities together.

The result is not simply networking. These gatherings can help capital find entrepreneurs, ideas move between industries, partnerships form across sectors, and solutions move from experimentation toward scale.