Global Cleantech Innovation Program promotes innovation and entrepreneurship in emerging markets and developing economies to address climate and environmental challenges. The program supports start-ups and small and medium-sized enterprises with innovative cleantech ideas in establishing and upscaling robust business models. Deadlines vary. Please check carefully. Know more
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Prototypes for Humanity — Global Innovation Awards for University Projects
Prototypes for Humanity invites applications for its global awards program to recognize university projects focused on environmental and social sustainability. Academic researchers, professors, and students from any country and university level are eligible to submit their technology-driven inventions, scientific discoveries, or design prototypes. The initiative looks for scalable solutions that address serious global challenges, such as climate change mitigation, sustainable agriculture, environmental pollution, and water resources depletion. The program offers a total prize pool of US$100 thousand, which is split among several winning teams to help advance their research. The deadline for applications is 03 August 2026. More here
Saïd Business School — Global Climate Tech Challenge
The Saïd Business School at the University of Oxford hosts a global competition to encourage tech-driven solutions to the climate crisis. Teams of three to five high school students aged 15 to 18, as well as individual high school teachers from any country, are eligible to submit tech-based ideas or lesson plans addressing issues like air pollution, extreme weather, food security, biodiversity, or water scarcity. Finalists receive an all-expenses-paid trip to Oxford to present their ideas, while the winning student team receives a full scholarship to the Future Climate Tech Innovators summer school and the winning teacher receives a place on an Oxford Executive Education program. The deadline for entries is 17 August 2026. Global Climate Tech Challenge
iF International Forum Design GmbH — Social Impact Prize
The iF Social Impact Prize aims to publish and support design projects that contribute to solving urgent challenges and help to improve living conditions in the developing world. Solutions should already be established and help to solve well-known issues in any category of the UN Sustainable Development Goals. The best projects will share a cash prize of €100 thousand in total. Eligibility extends to non-profit organizations, companies, and foundations (student concepts will not be accepted). Social projects can be submitted until 19 August 2026. iF Social Impact Prize
Both ENDS — JWH Initiative
The Joke Waller-Hunter (JWH) Initiative offers grants to advance the leadership of young individuals working for or affiliated with environmental civil society organizations in developing and emerging countries. JWH especially encourages the nomination of young women and local community leaders. Grants range from €2,500 to €7,000. The next nomination deadline is 31 August 2026. Details here
Art Partner — Earth Art Contest
The Earth Partner Prize is an international art competition that invites creatives aged 14 to 30 from all backgrounds to submit original works—across any medium including visual art, film, performance, writing, fashion, digital creations, and more—that address the ecological crisis. Each participant may submit one project. Eight finalists will receive cash prizes of US $10 thousand, $5 thousand, or $2 thousand, and an additional 20 participants will receive honorable mentions from a distinguished, global jury. Applications must be submitted by 07 October 2026. Earth Partner Prize
Worldwide Universities Network — Research Development Fund
The WUN Research Development Fund (RDF) provides grants of up to £10 thousand for one year to foster research collaborations among academic staff (faculty) at WUN member universities. Applications are open to researchers from WUN member institutions. The RDF supports research projects that fall under the network’s principal research theme of sustainable development. The closing date is 15 October 2026. (Note: Most WUN member universities have earlier internal submission deadlines, and prospective applicants should contact their local WUN Coordinator as soon as possible.) Link to guidelines
Catalyst Fund — Climate Resilience Africa
The Catalyst Fund supports early-stage tech startups that are developing solutions for climate adaptation and resilience in Africa. Startups receive US$150 thousand in investment and An additional US$50 thousand worth of tailored venture-building assistance. Eligibility extends to companies developing technology solutions aimed at climate adaptation and resilience serving populations within Africa. Startups that are interested in partnering with the Catalyst Fund can submit a project pitch. Link
UK Government — Local Environmental Initiatives
The Darwin Plus Local program invites applications for small-scale projects aimed at protecting biodiversity and the natural environment in eligible UK Overseas Territories. Environmental non-governmental organizations, community groups, research institutions, and individuals can apply with practical initiatives that focus on biodiversity conservation, climate change adaptation, and habitat restoration. The program provides up to £50 thousand for projects managed by organizations and up to £20 thousand for projects led by individuals. The application deadline is 25 June 2026. Details here
International Indigenous Women’s Forum — Support for Indigenous Women’s Organizations
The International Indigenous Women’s Forum invites applications for its 2026 Ayni Fund to support initiatives that promote the rights and development of Indigenous communities. Grassroots groups, networks, and organizations led by Indigenous women globally are eligible to apply, provided they have not previously received funding from this program. The call supports projects focused on seven key themes, including economic empowerment, climate change resilience, and the prevention of violence against women. Funding amounts are not explicitly specified on the main portal, though the fund provides direct financial grants alongside technical accompaniment. The deadline for applications is 30 June 2026. Ayni Fund