Unravel Carbon Expands into Japan with Strategic Investment from Japan Energy Fund and TIS Inc to Accelerate the Nation’s Green Transformation
TOKYO — December 9th, 2025 — Unravel Carbon, the world’s first solution to leverage AI agents for business sustainability outcomes, today announced its expansion into Japan with the opening of a new Tokyo office. The expansion is supported by a strategic investment from Japan Energy Fund and TIS Inc.
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The move aligns closely with the country’s Green Transformation (GX) strategy. GX is a national initiative led by the Ministry of Economy, Trade and Industry (METI) to achieve net-zero greenhouse gas emissions by 2050. The GX Promotion Act, enacted in 2023, aims to mobilize over ¥150 trillion (US$1 trillion) in public–private investment and foster digital and green innovation across industries including energy, manufacturing, and finance.
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“Japan’s GX policy is one of the most comprehensive national frameworks for decarbonization in the world, and we are excited to contribute to this transformative agenda,” said Grace Sai, Co-founder and CEO of Unravel Carbon. “Our expansion into Japan and partnership with our investors, TIS Inc. and Japan Energy Fund will allow us to empower sustainability consultants and enterprises with AI agents that make decarbonization measurable, actionable, and transparent. These intelligent systems are designed to help organizations not only meet regulatory expectations, but also unlock new business value from their sustainability data.”
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Unravel Carbon’s AI agents automate a wide variety of complex tasks across the sustainability strategy process, from engaging with suppliers, collecting raw data, transforming operational data into emissions data to an internal auditor agent for quality-checking, and drafting disclosures. The agents cut down the time and resource burden for organizations’ sustainability measurement processes by up to 90% and enable them to continuously track progress toward goals. These capabilities will empower Japanese organizations to hit upcoming GX League and ISSB-aligned disclosure requirements.
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Unravel Carbon’s operations in Japan will be led by Natsune Nomura, who brings more than 20 years of leadership in digital transformation, strategic partnerships, and market expansion. Her experience includes roles at Google, McKinsey & Company, and most recently Twilio, where she served in a variety of leadership roles including acting country manager.
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“I’m honored to join Unravel Carbon, a company that’s redefining how organizations approach sustainability through the power of agentic AI,” said Natsune Nomura, Country Manager and Commercial Lead, Japan at Unravel Carbon. “Unravel Carbon has already established itself as a leader in enterprise decarbonization across Asia Pacific, and also entered the U.S. early this year. I’m excited to bring that innovation to Japan. As more companies align with the GX agenda, our mission is to help them turn complex carbon challenges into measurable progress and long-term business value.”
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“We are proud to back Unravel Carbon’s expansion into Japan,” added Tomohito Shibata, Partner at Japan Energy Fund. “Its AI-centric approach to carbon management aligns perfectly with Japan’s vision for a technology-enabled green transformation. Together, we can accelerate progress toward a truly sustainable economy.”
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“We are honored to join forces with Unravel Carbon as it accelerates Japan’s Green Transformation through the power of AI,” said Kensaku Furusho, Managing Executive Officer at TIS Inc. “Our deep experience in digital transformation across industries positions TIS to support Unravel Carbon in making sustainability truly actionable for Japanese enterprises. By combining Unravel Carbon’s advanced agentic-AI technology with TIS’s strong enterprise network and implementation capabilities, we aim to transform decarbonization from compliance into business innovation.”
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The company’s Tokyo office will serve as a regional hub for customer success, partnerships, and policy engagement, enabling closer collaboration with Japanese enterprises, government agencies, and sustainability consultants. The expansion builds upon Unravel Carbon’s strong momentum across Asia, where it supports multinational clients in sectors such as financial services, technology, and manufacturing. Unravel Carbon plans to expand local hiring, partnerships, and collaborations that contribute to the nation’s GX and net-zero ambitions.
About Unravel Carbon
Unravel Carbon is the world’s first agentic platform for sustainability outcomes. Our AI agents and award-winning sustainability management platform are used by leading global companies and consultants in more than 50 countries to simplify emissions tracking, meet global regulatory standards, and accelerate climate action.
Unravel Carbon is backed by top-tier investors including Y Combinator and Sequoia Capital, and has offices in the U.S., Japan, Australia and Singapore. For more information please visit unravelcarbon.com.
About Japan Energy Fund
Japan Energy Fund (JEF) is a venture capital fund investing in world-leading climate-tech solutions to accelerate Japan’s decarbonization and advance the global energy transition. Leveraging deep relationships across Japanese industry, corporations, and policymakers, JEF connects global innovators with Japan’s energy ecosystem to catalyze collaboration and market entry. Through these partnerships, JEF helps deploy transformative technologies and projects both in Japan and around the world.
About TIS Inc.
TIS Inc. is a business partner to more than 3,000 companies in various sectors, including finance, industry, public services, and distribution services. It provides IT to support growth strategies, tackling various management challenges faced by its customers. Leveraging the industry knowledge and IT development capabilities it has cultivated over more than 50 years, TIS aims to realize a prosperous society by providing IT services that have been co-created with society and customers in Japan and the Asian region.
