The Hashgraph Association and Exponential Science have announced the winners of the 2025 Hedera Africa Hackathon, closing a competition that organizers described as the largest Web3 hackathon to date. According to the announcement, the event brought together more than 45,000 participants and 13,000 developers across 20 African hubs as well as online channels, underscoring strong interest in blockchain-based infrastructure building across emerging markets.
The hackathon produced more than 1,300 project submissions, all built using Hedera’s distributed ledger technology. Rather than focusing only on experimental Web3 concepts, organizers said many teams concentrated on practical systems aimed at solving real infrastructure challenges. The total prize pool reached $1 million, spread across four thematic areas: on-chain finance and real-world assets, DLT for operations, immersive experiences, and AI combined with decentralized physical infrastructure networks, or DePIN.
Greenafrica Takes the Top Prize
The overall “cross-track champion” award went to Greenafrica, a Nigeria-based environmental verification platform that received the hackathon’s top prize of $100,000. The project is designed to enable transparent tracking of sustainability initiatives, a use case that reflects the broader trend toward measurable, utility-driven blockchain applications.
Other leading teams also reflected the hackathon’s emphasis on applied infrastructure. Egypt’s Carboni Renewable Energy Certificate Platform secured second place overall, while Effisend X Africa, an AI-powered payment routing system from Mexico, finished third. Organizers noted that many of this year’s standout entries moved beyond speculative concepts and instead focused on tools such as cross-network payments and secure medical record management.
A Utility-Focused Signal for Emerging Markets
The scale of the event and the nature of the winning projects support Hedera’s effort to position itself as a network for real-world utility, particularly in regions where infrastructure gaps create opportunities for digital systems to solve operational problems. In the official statement, The Hashgraph Association said the volume of participation and submissions demonstrated how developers are increasingly using distributed ledger tools to address practical needs in emerging economies.
Kamal Youssefi, president of The Hashgraph Association, said the hackathon reached “historic heights,” highlighting the depth of talent and ambition across Africa and beyond. He added that Hedera has maintained a long-term commitment to global innovation and to enabling applications with tangible utility. While the statement was promotional in tone, the event’s participation figures and project volume suggest meaningful ecosystem engagement.
Education, Development, and Ecosystem Building
Exponential Science executive chairman Paolo Tasca emphasized the role of education in forming a sustainable technical ecosystem. According to Tasca, strong and responsible innovation starts with education, and the hackathon showed that such an approach can scale when participants move from learning into building infrastructure with practical relevance.
This framing is notable because hackathons increasingly serve multiple roles in the digital asset industry: they are not just coding competitions, but also pipelines for developer onboarding, ecosystem formation, and early-stage venture discovery. In this case, organizers presented the event as evidence that talent development can translate into deployable infrastructure, especially in regions where local problem-solving can become a driver of adoption.
Investment Committee Announced Alongside Awards
At the same time as the winners were announced, The Hashgraph Association said it had formed a new investment committee. The body is intended to make multi-million-dollar commitments to strategic partnerships and provide both capital and mentorship to developers in emerging markets. While specific investment amounts or recipient criteria were not detailed in the announcement, the move signals an effort to create continuity beyond the hackathon itself.
That matters because one of the main criticisms of large hackathons is that many promising projects fade after demo day. By pairing prize awards with an investment structure, the organizers appear to be trying to create a more durable pathway from prototype to long-term ecosystem participation. For founders and developers, that could mean support extending beyond visibility and prize money into strategic guidance and funding access.
Backers and the 2026 Return
The hackathon was co-funded by The Hashgraph Association and Exponential Science in partnership with Orange Digital Center, and operated by Dar Blockchain. Supporting partners included Sygnum Bank and the Nairobi Securities Exchange. The mix of ecosystem, financial, and regional institutional partners reflects the broader push to connect blockchain development with formal economic and infrastructure stakeholders.
Organizers also confirmed that the Hedera Africa Hackathon will return in 2026, with more details on location and competition tracks to be released later. That continuation suggests the 2025 edition is being treated not as a one-off promotional event, but as part of a longer-term effort to expand Hedera’s developer footprint and strengthen Web3 infrastructure building in Africa and other emerging markets.
With participation topping 45,000, submissions exceeding 1,300, and a headline award of $100,000 going to a Nigerian sustainability platform, the latest edition of the hackathon offers a snapshot of where blockchain development is heading in the region: toward practical tools, infrastructure use cases, and projects that aim to solve operational problems rather than chase hype alone.