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Apply for Cleantech Spark: Tokyo Today!
Join us for Cleantech Spark: Tokyo as we tackle the important theme of Bridging Global Cleantech Innovation and dive deep into strategies for connecting Japan with international markets. This exclusive event on December 3 in Tokyo will be capped at 100 participants and you must apply to be considered for registration. If chosen, participants will enjoy smaller and more interactive exchanges, enabling high-quality interactions with cleantech start-ups, senior-level investors and corporates, as well as key APAC players driving the global cleantech agenda.
In a landscape of global economic turbulence, Japan is emerging as a beacon for cleantech innovation, offering a unique blend of advanced technology, robust industry, and unwavering commitment to sustainability. Cleantech Spark: Tokyo is your exclusive gateway to this pivotal market, designed to foster dynamic two-way connections. Discover how Japan is sharing its groundbreaking innovations with the world, and simultaneously, how international knowledge, resources, and expertise can fuel its growth, creating unparalleled opportunities for cross-border collaboration and market entry.
How To Apply to Participate
You must apply to participate in Cleantech Spark: Tokyo, taking place at Sakura Deeptech Shibuya on December 3, 2025. We will review the first wave of applications and confirm your participation and applicable registration fee by September 3. After that, applications will be reviewed on a rolling basis until all spots are full.
There is limited capacity at the venue and we will cap registration at 100 participants to ensure a great experience.
We fully expect this event to sell out, so don’t delay your application, and if approved, subsequent registration.
Unlocking Global Cleantech Opportunities
Join an exclusive gathering of cleantech innovators, investors, corporate leaders, and policy experts to explore critical strategies for navigating and unlocking market potential in Japan and beyond. Through engaging panel discussions, innovation showcases, and invaluable expert insights, you’ll gain a comprehensive understanding of the forces shaping global cleantech innovation, from the impact of international policies to the delicate balance of disruption and safety in venture capital.
Whether you’re aiming for global expansion, seeking the next transformative investment, or exploring strategic partnerships, Cleantech Spark: Tokyo offers actionable insights to accelerate your transition to a cleaner, cooler future.
Beyond the program, there will be many opportunities to network and hold business development meetings with other participants.
Who You Will Meet
Cleantech Spark: Tokyo will gather 100+ forward-thinking colleagues from Japan, APAC and beyond who will examine how businesses and governments can collaborate to accelerate the transition to a sustainable future. This event will act as a bridge of knowledge and connections to the wider global ecosystem.
Check back soon to see the registration list, but you can expect to see:
- Cleantech startups and entrepreneurs from both Japan and international markets
- Venture capitalists and investors in cleantech
- Corporates and multinational companies involved in clean energy and sustainability
- Policymakers, innovation hubs, and accelerators in Japan and APAC
Contact Us
If you have any questions about Cleantech Spark: Tokyo or are interested in sponsorship, please feel free to contact us at here.
Entrepreneurs
Why do so many entrepreneurs participate in Cleantech Group events?
We strive to connect the latest generation of start-ups with investors and corporates looking for new partners.
We have a very limited number of speaking spots available for cleantech start-ups or scale-ups interested in presenting their solutions. Whether you want investment, advice or there’s a technology gap you need to fill, you’ll meet the right people. We welcome all cleantech companies to apply, but this event will have an special focus on Energy & Power, Materials & Chemicals, and AI/smart grid solutions.
The official deadline for companies to apply to present during an Innovation Showcase is 3 October. If chosen, you will be given 6 mins to present your company and solution to the audience during a dedicate Innovation Showcase or asked to speak on a different type of session like a panel or interactive discussion.
If you are interested in participating at the event, we highly recommend you also apply to participate on the registration tab to preemptively secure your spot in case you aren’t chosen to speak.
Investors and Corporates
Why do investors and corporates participate in Cleantech Group Events?
Don’t miss this unique opportunity to:
- Access to actionable insights into the challenges and opportunities of scaling cleantech startups across borders. Whether you are an international startup aiming to enter Japan, or a Japanese startup looking to scale globally, this event will offer practical knowledge on navigating regulations, securing funding, building partnerships.
- Meet rising star, early-stage companies and leading start-ups and scale-up champions.
- Be an active participant in the APAC cleantech community and the many conversations that impact the ecosystem.
- Maximize your opportunities of finding future partners.
Apply by 3 October to be considered for a very limited amount of speaking roles. We are looking for key leaders focused on Energy & Power, Materials & Chemicals, and AI/smart grid solutions to add value to the program.
We will only contact you if you have been chosen to speak at the event. There are limited speaking roles available and we encourage you to apply to participate in the event now on the registration tab (in addition to the speaking application) to secure your spot, rather than wait to hear if you have been chosen.
Agenda
December 3, 2025
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Registration & Networking Coffee
Collect your badge, grab a coffee and meet other participants before the day starts.
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Global Trends in Cleantech Innovation
Cleantech Group will set the stage for the day and provide an overview of the latest trends in global cleantech innovation. We will highlight emerging technologies, shifts in the market, and how these innovations are impacting various regions. We will start the day with insights into global strategies that are shaping the future of clean energy, sustainability, and climate tech.
Anthony DeOrsey
Research Manager, Cleantech Group -
Global Supply Chain Shifts and Their Impact on Cleantech Innovation in APAC
Let’s explore how global supply chain disruptions—driven by factors such as trade wars and shifting geopolitical policies—are affecting cleantech innovation in APAC. Experts will discuss how US policies and trade conflicts influence cleantech development in the region, and how companies in APAC are responding to these challenges. A panel of corporate leaders and stakeholders from across the region will provide their perspectives on how cross-border collaboration is evolving in this space.
Richard Youngman
CEO, Cleantech Group
Jack Rice
Principal, BHP Ventures -
Morning Coffee Break
Time to grab a coffee, schedule a 1:1 meeting, or continue the conversation from the opening sessions.
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Long-Duration-Energy-Storage and AI
A deep-dive into the intersection between long-duration energy storage and artificial intelligence (AI). We will explore how AI technologies are enhancing energy storage solutions, with a focus on improving efficiency, scalability, and integration with renewable energy sources. Experts will share the latest advancements and future trends in this space.
Anthony DeOrsey
Research Manager, Cleantech Group
Avishek Kumar
Co-Founder & CEO, VFlow Tech
JuneWoo Ryu
Co-Founder and COO, Gridwiz -
Innovation Showcase: Start-ups Driving the Future of Cleantech
Hear directly from a few standout cleantech startups as they present their groundbreaking cleantech solutions. These startups represent the cutting-edge of cleantech, showcasing solutions that address critical environmental challenges. Each startup will have a brief opportunity to present their technology, solution and business model, and explain how they can make an impact on the future of energy and sustainability.
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What Are the Key Opportunities, Barriers, and Policy Supports for Scaling Cleantech Startups Across APAC?
This panel discussion will explore the challenges and opportunities for cleantech startups in the APAC region. The focus will be on the barriers startups face when scaling their operations, such as access to funding, regulatory hurdles, and market maturity. Speakers will also address the policy supports available in different APAC countries that can help these startups overcome these challenges, offering practical advice for entrepreneurs.
Richard Youngman
CEO, Cleantech Group
Julien Mialaret
Operating Partner, Eurazeo
Max Han
CEO, Sopoong Ventures
Min Zhou
Co-Founder & CEO, CM Venture Capital -
Networking Lunch
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Navigating Japan’s Cleantech Market–Challenges and Opportunities
Local experts and international startups will share their experiences navigating Japan’s regulatory environment, market dynamics, and cultural barriers to entry. The session will focus on strategies for breaking into the Japanese market and the advantages of collaborating with local players.
Richard Youngman
CEO, Cleantech Group
Stone Zhang
VP Business Development, Amogy -
Alternative Funding Sources for Cleantech Startups in Japan and Beyond
Funding is often one of the most significant challenges for cleantech startups. This session will cover various funding sources available to cleantech startups, including venture capital, government grants, corporate venture capital, and crowdfunding. Speakers from venture capital firms, government-backed programs, and corporate investors will discuss how international and local startups can secure funding for their innovations in Japan and beyond.
Summer Bae
Managing Director, APAC, Cleantech Group -
Carbon-to-Value
We will focus on carbon-to-value technologies, which capture and convert carbon emissions into valuable products or energy. Experts will explore innovative approaches to carbon utilization and how these technologies contribute to a sustainable circular economy.
Anthony DeOrsey
Research Manager, Cleantech Group -
Afternoon Coffee Break & Networking
Time for an afternoon coffee, schedule a 1:1 meeting, or dive deep into one of the topics present so far with other participants.
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Innovation Showcase: Start-ups Driving the Future of Cleantech
Meet a couple more startups presenting their transformative cleantech solutions. These innovators will highlight their work in sectors such as renewable energy, energy efficiency, carbon capture, and environmental sustainability. This is an excellent opportunity to discover the latest cleantech breakthroughs and hear directly from entrepreneurs driving change.
Summer Bae
Managing Director, APAC, Cleantech Group
Atsushi Alex Mazawa
Co-founder & CEO, Rhinoflux
Kei Ikegami
Founder & CEO, PlanetSaver -
Spotlight: The Future of Fusion Energy in Asia’s Clean Energy Mix
Get an in-depth look at the future role of fusion energy in Asia’s clean energy landscape. Explore the technological developments, timelines for commercialization, and the geopolitical factors influencing the adoption of fusion energy. A fireside chat will feature industry leaders who are at the forefront of fusion research and commercialization in Asia.
Anthony DeOrsey
Research Manager, Cleantech Group
Takaya Taguchi
Co-Founder & CEO, Helical Fusion -
Practical Lessons for Japanese Startups Expanding Globally
Nothing is better than practical take-aways. Speakers will share practical next steps for Japanese cleantech startups looking to expand their operations internationally. From market adaptation, overcoming cultural and regulatory barriers, and best practices for entering new markets, this discussion will also include case studies from companies that have successfully scaled their operations abroad, offering actionable insights for Japanese innovators.
Summer Bae
Managing Director, APAC, Cleantech Group
Tomoaki Nakagawa
Director, Marunouchi Innovation Partners -
Evening Networking Reception
Join us for a drink and your last chance to make key connections with other participants.
Venue
Main Venue
Cleantech Spark: Tokyo will take place at Sakura Deeptech Shibuya.
The meeting space can be a bit tricky to find, so please view these detailed directions.
Address:
Sakuragaoka-cho, Shibuya-ku, Tokyo 1-1,
Central Building 12F
(*Entrance is on the 3rd floor)
Speakers
Interested in Speaking?
Fill out this speaker application to be considered for a speaking opportunity. Due to limited speaking opportunities and high demand, not all requests can be accommodated. However, the program offers immense value beyond stage time, and we encourage you to apply for participation through the registration page form.
Contact us with questions.
Anthony DeOrsey
Research Manager, Cleantech Group Speaker bioAnthony DeOrsey
Anthony manages Cleantech Group’s research team, delivering critical insights on new cleantech innovation and opportunities for engagement to Cleantech Group’s clients in the industrial, investment, and policy communities. He is based in the U.S.
Anthony joined Cleantech Group in late 2019 after over 8 years of work in US-China cross-border expansion consulting and start-up venture funding roles, including 5 years living in Shanghai.
He holds a Bachelor of Arts in Political Science from University of Rhode Island, a Masters in Sustainability from the Harvard Extension School, and he an MBA from the University of Michigan Ross School of Business.
Atsushi Alex Mazawa
Co-founder & CEO, Rhinoflux Speaker bioAtsushi Alex Mazawa
With 9 years of experience at Mitsubishi Corporation, Japan’s largest conglomerate, he built a strong foundation in the global energy and resource sectors.
As a commodity trader and corporate venture capitalist specializing in the mineral resources industry, he led investments and strategic collaborations with NASDAQ-listed companies, unicorns, and global VCs.
Leveraging this deep industry expertise and network, he co-founded Rhinoflux as the first Entrepreneur in Residence (EIR) at Kyoto University, uniting corporate experience with academic innovation to revolutionize the energy landscape.
Avishek Kumar
Co-Founder & CEO, VFlow Tech Speaker bioAvishek Kumar
Dr Avishek is co-founder and CEO of V-Flow Tech Pte Ltd. V-Flow Tech (VFT) is a spin-off from Nanyang Technology University in Singapore, capitalizing on 7 years of research to address key issues faced by flow batteries. VFT is reinventing vanadium redox flow technology, with a vision to develop the cheapest and most scalable vanadium redox flow batteries in the world.
Avishek holds MS degree in Microelectronics from Technical University of Munich, Germany and a Doctorate degree (PhD) in Electrical and Computer Engineering from National University of Singapore. Avishek has deep background in manufacturing and detailed domain knowledge of renewable energy industry. Dr Avishek was one of the chief architects for developing high efficiency PERC Mono modules and has played key role in the commercialization of Half cut PERC Mono module for REC solar. He is actively involved in consultation and development of solar plus energy storage projects across the region and has contributed to over 600 MW of renewable energy projects in the region.
Jack Rice
Principal, BHP Ventures Speaker bioJack Rice
Jack represents BHP Ventures in Asia, with a focus on portfolio strategy and development. Before joining BHP Ventures, Jack held a number of roles within BHP Sales & Trading, and Technical functions. He has worked across for BHP in the UK and in Singapore across copper, uranium, and coal business units. He has led strategy and planning, optimization, customer platform, and trade digitalization projects
Julien Mialaret
Operating Partner, Eurazeo Speaker bioJulien Mialaret
Julien is an Operating Partner at Eurazeo, a global investor in technology with offices in Paris, London, Berlin, NY, Shanghai, Seoul and Singapore. Eurazeo is currently the largest venture capital firm in continental Europe and active in Asia with approximately €3.6 bn in venture and growth capital and €22bn overall with additional activities in private debt and private equity
Julien deploys Smart City Fund II in China and Asean region which is focused on the digital convergence of smart city sectors: new energy, mobility, industry 4.0, property, deeptech. Smart City II launched in January 2021 with a 1st closing at €80m and is already supported by 10 corporate and institutional investors in Europe and Asia. The fund is expected to reach €200m by the end of 2021.
To date, Julien has invested in digital technologies with global reach in China, Asean, Europe and the US: WeRide.ai (Driverless taxis, China), DST Car (EV Logistics, China), Grab (Rides, payments, deliveries, Singapore), Immotor (e-scooter battery exchanges, China), Neurala Inc. (Deep neural network software, US), TrustInSoft (Automated code analysis and flaw remediation, FR), Enlighted Inc. (IoT networks for buildings, US, acquired by Siemens), First Fuel Software (Energy data analytics, US, acquired by Uplight/Tendril), Organica Water Inc. (Decentralized waste water treatment, US/HK) and Actility (Low power IoT networks, FR).
Prior to joining Idinvest in 2011, Julien was based in China where he developed and acquired power projects for EDF Group. Julien holds degrees from La Sorbonne University, Beijing University, ESCP Europe Business School and the French School of Oriental Studies. He is a fluent Mandarin, English, French and Spanish speaker and has working capacity in Japanese.
JuneWoo Ryu
Co-Founder and COO, GridwizJuneWoo Ryu
Kei Ikegami
Founder & CEO, PlanetSaver Speaker bioKei Ikegami
Serial entrepreneur. Founder of an education startup, MIRAIing; achieved 600+ paid users in 2 years.
Engaged in power and energy infrastructure development/policy support at JICA, and in global business expansion at SoftBank Robotics.
Education: Cambridge University (MBA), Kyoto University (MA – Public Policy)
Max Han
CEO, Sopoong Ventures Speaker bioMax Han
SangYeob (Max) Han is a serial social entrepreneur and also impact investor who to solve unfairness and social problems by using business approach with impact business. He founded the project group ‘Nexters’ to execute social activities, and was founder of Wisdome, Korean largest insights and experiences sharing platform, also published a book named ‘Beautiful Lie’ about impact businesses, large corporations and NPOs that revolutionize social problems in India and Bangladesh. As a managing partner of the impact investor ‘Sopoong Ventures’ , he works on investment and growth for climate tech startups and innovative entrepreneurs in Korea and SEA.
Min Zhou
Co-Founder & CEO, CM Venture CapitalMin Zhou
Stone Zhang
VP Business Development, Amogy Speaker bioStone Zhang
Stone Zhang is the VP Business Development at Amogy, where he leads business development and commercial operations globally. Stone had 14 years of regional and global executive experiences at DNV across the maritime, energy value chains. Right before Amogy, he also spent 6 years in cross-border venture capital business investing in broader deep-tech sectors between Americas and Asia. Stone holds a PhD in Marine and Offshore Engineering from Harbin Engineering University (China), and Executive MBA from Rice University (USA).
Summer Bae
Managing Director, APAC, Cleantech Group Speaker bioSummer Bae
Summer is the Managing Director, APAC at Cleantech Group and is based in Singapore.
Prior to Cleantech Group, Summer was at BloombergNEF for over 10 years, where she built partnerships with financial institutions, governments, and companies to drive sustainable finance and clean technology adoption in the region and was focused on forming strategic relationships with C-suite leaders, particularly across Korea, Japan, and ASEAN. Earlier roles included regional sales and planning positions at Datum Alloys and Sumitomo Chemical, covering markets across Asia, Europe, and the Americas.
Summer holds a Bachelor’s degree in Asia-Pacific Sociology from Ritsumeikan Asia Pacific University in Japan and a Sustainable Investing Certificate from CFA Institute (2025).
Takaya Taguchi
Co-Founder & CEO, Helical Fusion Speaker bioTakaya Taguchi
He began his accomplished career in Japan’s financial industry, holding key roles at Mizuho Bank, the Japan Bank for International Cooperation (JBIC), PwC Advisory, and Dai-ichi Life, where he gained extensive expertise in finance and business strategy. He also served as COO of a startup, further honing his leadership and operational skills.
Tomoaki Nakagawa
Director, Marunouchi Innovation Partners Speaker bioTomoaki Nakagawa
Tomoaki Nakagawa is a Director of Marunouchi Innovation Partners. He is in charge of Fervo Energy, an enhanced geothermal system company; GridPoint, an energy management system company; and HIVED, a parcel delivery company. Currently servicing board observer for GridPoint and HIVED.
Tomo has over 16 years of experience in private equity, venture capital, strategic M&A, capital and business alliance, and alternative investment management business, including over 6 years of Venture capital experience that includes 4 years of investment committee at DG Daiwa Ventures.
Tomo started his career at Daiwa Securities SMBC in 2005 where he was seconded to its principal investment subsidiary and engaged in private equity investment in the Asian region. In 2017, he moved to Corporate Finance Dept. of Daiwa Securities and engaged in client coverage of power utility and trading companies. In 2018, he worked for Corporate Planning Dept. of Daiwa Securities Group, where he was responsible for equity investment-related business including strategic M&A, capital and business alliance, management of a venture capital fund as an investment committee member, and other alternative investment management businesses. He also served as non-executive director and corporate auditor of several affiliate companies within Daiwa Securities Group. In 2022, he joined a Japanese healthcare venture company where he was engaged in corporate management and international business development.
Tomo holds a B.A. in Political Science from Keio University, Japan and a Master of Business Administration from Harvard Business School.
Sponsors
Ignite Your Global Impact: Sponsor Cleantech Spark: Tokyo
Partners benefit from unparalleled global visibility and strategic networking opportunities within APAC’s cleantech ecosystem. Position your organization at the forefront of innovation, engaging directly with a diverse, high-level audience of corporates, investors, and service firms from Japan, APAC and around the world.
This is your opportunity to amplify your brand’s influence and drive the future of sustainable innovation across Asia and beyond.
Interested in sponsoring this event? Please contact us here to discuss opportunities.
Supported By
JETRO, or the Japan External Trade Organization, is a non-profit organization that works to promote mutual trade and investment between Japan and the world.
Read moreJETRO, or the Japan External Trade Organization, is a non-profit organization that works to promote mutual trade and investment between Japan and the world. Originally established in 1958, JETRO’s core focus is to promote foreign direct investment into Japan by supporting companies expanding into Japan. JETRO currently maintains 74 offices overseas in 54 countries worldwide, as well as 46 offices in Japan, including the Tokyo and Osaka headquarters.
Learn more at https://www.jetro.go.jp/usa
MassChallenge connects startups, experts, corporations, and communities to grow and transform businesses and economies. We do this work because entrepreneurship is a uniquely vigorous force in driving progress against humanity’s greatest challenges, creating opportunity for individuals, and generating jobs for our economy. We work across sectors to drive a stronger future through collaborative innovation, and support all founders whether they fit or break the traditional venture mold.
Read moreMassChallenge connects startups, experts, corporations, and communities to grow and transform businesses and economies. We do this work because entrepreneurship is a uniquely vigorous force in driving progress against humanity’s greatest challenges, creating opportunity for individuals, and generating jobs for our economy. We work across sectors to drive a stronger future through collaborative innovation, and support all founders whether they fit or break the traditional venture mold.
Registration
| Early-Bird July - Oct 30 | Standard Oct 31 - Dec 3 |
|
|---|---|---|
| Investor / Corporate Ticket | $650 | $850 |
| Innovator Ticket | $200 | $300 |
| Regular Ticket | $650 | $800 |
How To Apply to Participate
You must first apply to participate in Cleantech Spark: Tokyo, taking place at Sakura Deeptech Shibuya on December 3, 2025. We will review the first wave of applications and confirm your participation and applicable registration fee by September 3. After that, applications will be reviewed on a rolling basis until all spots are full.
There is limited capacity at the venue and we will cap registration at 100 participants to ensure a great experience. We fully expect this event to sell out, so don’t delay your application, and if approved, subsequent registration.
If your application is approved, you will be sent a link to confirm your registration. Once you register and pay applicable fees, you will gain access to:
- All keynotes, general sessions, networking and B2B opportunities.
- Access to the event mobile app
Investor/Corporate Ticket
This ticket type is available to individuals who are part of an investment team (e.g. VC, PE, Family Office, etc.) or who work in large corporations (be that in the CVC function or elsewhere).
Innovator Ticket
This ticket type is available to all start-ups, scale-ups, and entrepreneurs.
Regular Ticket
This ticket type is available to all others who are not innovators, investors or at a large industrial corporation. You might be public sector or at a service firm including law firms, advisory firms, consulting firms, etc.
If you have any questions about what ticket type you qualify for, please contact us. Please note: we will contact you if you register under the incorrect ticket type and a price adjustment will be made.
Terms & Conditions
Substitutions:
- Because this is an invite-only event, a request to transfer a registration to a colleague will be considered if the replacement is in a similar role as the original participant. Requests should be made by giving written notice, anytime up to seven working days before the event start date, via our contact form.
- Cleantech Group reserves the right to deny a request for such a substitution but will not unreasonably do so.
Cancellation by You:
- Participants wishing to cancel their registration must do so in writing via our contact form; Applicable refunds (or future credits) for participant cancellations are outlined as follows:
- Cancelations made by October 3 at 5:00 pm ET will receive a 100% refund.
- Cancelations made between October 4 and November 7 at 5:00 pm ET will receive a 50% refund of the registration fee paid (or 75% can be applied as a credit to a future Cleantech Group event within 12 months of the cancellation date)
- Cancelations made after November 7 at 5:00 pm ET (including No Show or No Notice), no refund of any sort will be applicable.
Cancellation by Cleantech Group
- In the unlikely event where Cleantech Group chooses to cancel an event, a full refund would be owed except in the case where an event is cancelled, through no fault of Cleantech Group (e.g. a force majeure event).
- This is a standard and necessary protection across the event industry (particularly aimed at the situation where a very late cancellation is forced upon the organizer/host at which point all the time and costs for hosting the event have been expended).