The Open Rivers Programme invites applications for grants to support the removal of small dams and barriers to restore free-flowing rivers across Europe. Non-governmental organisations, public authorities, and community groups can apply for funding to complete preparatory work, technical assessments, and the physical removal of redundant instream structures. The program offers different grant categories, with funding amounts varying depending on the scope of the project, including small grants under €10 thousand for preparatory phases and larger allocations for full-scale barrier removals. The deadline for the current application cycle is 26 June 2026. Open Rivers
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GreenCape — Afri GreenPitch Challenge
GreenCape and Westerwelle Startup Haus Mombasa invite entrepreneurs to enter the 2026 FNF Afri GreenPitch Challenge. The competition is open to pre-growth, sales-generating green businesses located in Botswana, eSwatini, Kenya, Lesotho, Namibia, South Africa, and Tanzania. Eligible entries must offer economically viable business solutions in circular economy and waste, renewable energy, sustainable agriculture, sustainable mobility, or water and wastewater. Finalists receive mentorship, access to funding networks, and a chance to pitch to investors, with the winner and finalists competing for cash and in-kind prizes valued at approximately US$20 thousand. The deadline for entries is 30 June 2026. Afri GreenPitch Challenge
Reckitt — Catalyst Social Impact Program
The Catalyst Social Impact Program supports social enterprises focused on health, hygiene, water, sanitation, and climate resilience. The program provides tailored business development, mentorship, and funding to scale purpose-driven ventures that address systemic inequalities and deliver community-level impact. The program is open to entrepreneurs from Nigeria, Kenya, South Africa, India, Pakistan, Indonesia, Mexico, Brazil, and the United States. The deadline to apply for the 2026 cohort is 09 August 2026. Social Impact Program
Teach A Man To Fish — School Enterprise Challenge 2026
The School Enterprise Challenge is an international business program for schools run by the educational charity Teach A Man To Fish. It guides and supports teachers and students to plan and set up real, sustainable school businesses and generate real profits to help support their school or a social cause of their choice. Thematic areas include agriculture, drinking water and sanitation, and the environment, among others. Prizes are between US$250 and US$5 thousand, including in-kind donations like laptops and cameras. Please note that only pre-primary schools, primary schools, secondary schools and technical/vocational colleges are eligible (universities are not eligible to apply). Business Ideas have to be submitted by 06 October 2026. School Enterprise Challenge
German Academic Exchange Service — Postgraduate Courses in Germany 2027-2028
The German Academic Exchange Service (DAAD) offers scholarships to qualified individuals from eligible developing countries for post-graduate studies at German universities in development-related subjects. The program (EPOS) is open to individuals who have completed their previous academic degrees no longer than six years previously; who have at least two years of professional experience; and who are nationals of countries receiving official development assistance (DAC list of the OECD). The available courses range across water resources; renewable energy; land management and tenure; agricultural sciences; forest sciences; ecology; nature conservation; environmental governance; and many others. The application deadline for the next intake (October 2027) is 30 October 2026. EPOS Scholarship
Alexander von Humboldt Foundation — Research Fellowship for Brazilian Postdoctoral Researchers
The CAPES‑Humboldt Research Fellowship supports postdoctoral and experienced researchers from Brazil (and German nationals permanently based in Brazil) with fully funded research stays in Germany. Monthly stipends are approximately €2,700–€2,600 for postdoctoral fellows and €3,200–€3,100 for experienced researchers, with additional benefits such as research grants, travel allowances, family support, and optional German language courses. This fellowship is ideal for Brazilian researchers seeking to advance their careers through collaborative research in Germany across any discipline. The application deadline is 30 November 2026. CAPES‑Humboldt Research Fellowship
UNICEF — Sustainable WASH Solutions
The UNICEF Sustainable WASH Innovation Hub invites submissions for proven innovative water, sanitation, and hygiene (WASH) solutions that have demonstrated evidence in addressing critical global challenges. The program targets individuals, businesses, small and medium-sized enterprises (SMEs), and organizations worldwide with scalable technologies or models that align with UNICEF’s strategic problem statements, such as groundwater mapping, climate-sensitive data, or innovative financing. Selected participants gain access to UNICEF’s global network across more than 190 countries, technical guidance from experts, and strategic matchmaking to scale their impact, though specific monetary funding amounts are not disclosed. There is no fixed deadline, as submissions are reviewed on a rolling, quarterly basis. Innovative WASH Solutions
The Queen Elizabeth Prize for Engineering Foundation — Prize for Engineering Innovations
The Queen Elizabeth Prize for Engineering accepts nominations of ground-breaking innovations in engineering from all around the world which have been of benefit to humanity. In the scope of the Terra Viva Grants Directory, this may include innovations in the fields of sustainable energy, water management and/or agriculture. The winner will receive £500 thousand to advance their project. Self nominations are not permitted. The closing date to submit nominations is 26 June 2026. Queen Elizabeth Prize for Engineering
Japan Water Forum — Small Grants for Water Projects
The Japan Water Forum makes small grants to grassroots organizations in least-developed countries. Funding is made to projects addressing local water-related issues, including innovative solutions for water and sanitation, risk reduction for water-related disasters, and WASH projects. Grants are up to US$1,500. The application deadline is 30 June 2026. Details here
Global Good Fund — Fellowship Program 2027
The Global Good Fund Fellowship is a 12-month leadership development program for young social entrepreneurs who remain in their workplaces. Each fellow is offered mentoring; resources for leadership assessment; a peer network; and financial support. Past fellows represent enterprises for agriculture; environment; solar energy; and other green development. The program is open to applications worldwide. Candidates should be under age 40. The pre-application deadline (Phase 1) is 30 June 2026. Link to the Global Good Fund