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Tokyo GreenTech Challenge Highlights

On February 26, 2026, Tokyo held a final report meeting for the 'Tokyo GreenTech Challenge' (TGC), a program dedicated to fostering startups that address environmental, energy, and climate change issues. The initiative is part of Tokyo's broader startup support strategy, 'TOKYO SUTEAM,' which aims to create synergies between startups and large companies, academia, and local communities through open innovation.

The event took place at Global Business Hub Tokyo, attracting 65 attendees, including entrepreneurs and industry experts. The meeting featured presentations from seven selected startups, which are engaged in innovative projects utilizing advanced technologies to tackle pressing societal challenges. Notable guest speaker, Mr. Minoru Moriya, a new business entrepreneur, emphasized the importance of collaboration between large corporations and startups for successful innovation.

Overview of the Tokyo GreenTech Challenge

The TGC is designed to connect startups with a network of over 350 organizations through the Tokyo Marunouchi Innovation Platform (TMIP). This initiative aims to gather players from various sectors such as large corporations, municipalities, and academia to support startups in their journey toward impactful solutions.

With a focus on concrete outcomes, the TGC achieved remarkable results: 22 collaboration sessions and nine non-disclosure agreements (NDAs) signed, exceeding initial targets by 183% and 225%, respectively. This extensive support framework is vital for scaling innovative solutions and launching startups onto the national and global stage.

Featured Startups and Their Projects

1. ESREE Energy Inc.
Sector: Energy Management
ESREE Energy is developing a heat storage technology using gravel that utilizes surplus electricity to store thermal energy for supply during peak demands, enhancing renewable energy stability.

Quote: "Our focus on innovative heat storage solutions has enabled us to secure investments from several key industry players, accelerating our R&D efforts."

2. Biome Inc.
Sector: Biodiversity
Biome is pioneering a service combining big data on species distribution with urban flow dynamics to design cities that synergize biodiversity and human activity.

Quote: "We aim to promote a nature-positive approach in urban planning through data-driven discussions that foster collaboration between nature and society."

3. WALLTECH Inc.
Sector: Circular Economy
WALLTECH is transforming construction waste into artistic wall panels using 3D printing technology, creating urban art installations while promoting sustainability.

Quote: "This proof of concept confirmed the potential of resource-circular art in urban environments, paving the way for wider collaboration with artists and industries."

4. RYDE Inc.
Sector: Mobility
RYDE is working on a digital ticketing platform aimed at facilitating the use of public transport while reducing environmental impact through community partnerships.

Quote: "Our digital solution encourages public transportation usage, aligning with the diverse needs of local communities to drive sustainable mobility."

5. TerraInsight Inc.
Sector: Integrated Water Management
TerraInsight uses predictive modeling to manage water resources more efficiently, helping to balance flood control and water supply for agriculture and energy generation.

Quote: "We're focused on enhancing local resilience through sustainable water management practices, supporting both the environment and economic viability."

6. WAKU Inc.
Sector: Agriculture
WAKU's project explores the use of glutathione-based fertilizers, enhancing plant health and sustainability in urban agriculture.

Quote: "We discovered significant benefits for turf management using our biostimulant, opening new avenues for its application in urban greening."

7. Vanwaves Inc.
Sector: Forestry
Vanwaves is manufacturing saunas from domestically sourced timber, repurposing urban spaces while promoting local forestry and community engagement.

Quote: "Our innovative sauna project is redefining urban spaces, showcasing the value of local materials and enhancing community wellness."

Future Aspirations

The TMIP continues to drive social innovation by collaborating with startups tackling societal challenges. Through robust partnerships and by harnessing cutting-edge technology, TMIP strives to promote new ideas that reshape the future of urban living.

As TGC wraps up, the insights gained during the program present a foundation for ongoing expansion into new projects that prioritize sustainability, efficiency, and inclusive urban development.

For more information visit TOKYO SUTEAM or TMIP.