Leave a Nest Group Invests in Tenchijin Inc. to Advance Sustainable Water Utilities with Satellite Data and AI
Tokyo, Japan — September 2, 2025 — Leave a Nest Co., Ltd. (Headquarters: Shinjuku, Tokyo; Group CEO: Dr. Yukihiro Maru) and Leave a Nest Capital Co., Ltd. (Headquarters: Shinjuku, Tokyo; President: Masahiro Ikegami) today announced a joint investment in Tenchijin Inc. (Headquarters: Chuo, Tokyo; CEO: Yasuhito Sakuraba), a certified JAXA startup that integrates space big data and AI analytics to visualize hidden risks and value on Earth.
Tenchijin’s flagship service, KnoWaterleak launched in 2023, is a digital transformation (DX) solution that leverages satellite data and AI to support sustainable water utility operations. The service has already been adopted by more than 40 municipalities across Japan. With this investment, Leave a Nest Group will accelerate further development of the platform and drive its deployment both domestically and internationally.
Accelerating Global Expansion in Water Infrastructure
Since partnering with Leave a Nest, Tenchijin has rapidly advanced its overseas strategy. The company joined the Center of Garage Malaysia incubation facility in February 2024, and in August of the same year was selected for an AMEICC-commissioned project promoting overseas expansion of Japanese startups through ASEAN collaboration.
Tenchijin has also been gaining recognition in regional innovation platforms, including presenting at the Hyper Interdisciplinary Conference 2024 Kansai and being selected as a finalist at the Agri-Tech Grand Prix 2024. The company is further contributing to the Leave a Nest Resilience Project with its Space Water Bureau solution.
In Malaysia, Tenchijin signed a Memorandum of Understanding with Universiti Sains Malaysia in February 2025 to explore applications in infrastructure assessment and renewable energy site selection.
Comments
Yasuhito Sakuraba, CEO, Tenchijin Inc.
“Through collaboration with Leave a Nest and Leave a Nest Capital, we will accelerate future-oriented projects in Southeast Asia. Our expansion is focused on Malaysia, Singapore, Indonesia, and Thailand—regions facing urgent needs for sustainable infrastructure amid climate change and urbanization. Expectations for Japan’s technological solutions are rising. Together with Leave a Nest, we aim to serve as a bridge delivering Japan’s advanced technologies to the world and creating sustainable value in local communities.”
Dr. Yukihiro Maru, Group CEO, Leave a Nest Co., Ltd.
“Tenchijin has been working with us from its base at Center of Garage Malaysia to expand across Southeast Asia. Water infrastructure challenges are global, and through initiatives like the Leave a Nest Resilience Project, we are jointly working to build flexible, resilient systems that connect ordinary and emergency times. With their space-based perspective, we look forward to supporting Tenchijin as they tackle this worldwide challenge.”
Masahiro Ikegami, President, Leave a Nest Capital Co., Ltd.
“We strongly resonate with Tenchijin’s vision of harnessing space data and AI for the sustainable advancement of human society, and are proud to invest. By linking Tenchijin with Leave a Nest Group’s global innovation platform and venture support network, we will accelerate their challenge and contribute to enhancing resilience in human communities.”
About Tenchijin Inc.
Tenchijin Inc. is a space-tech innovator leveraging satellite data and AI to detect hidden water infrastructure risks, predict potential leaks, and drive more sustainable, efficient water management through space-derived insights. Our flagship product, KnoWaterleak, combines satellite technology with advanced AI algorithms to proactively identify and prevent costly infrastructure failures, enabling organizations to manage their water systems more sustainably.
https://tenchijin.co.jp/?hl=en
About Leave a Nest Co., Ltd.
Established in 2002, Leave a Nest Co., Ltd. (https://lne.st/) is a knowledge manufacturing company driven by its mission of “Advancing Science and Technology for Global Happiness.” With expertise across education, human development, research, and entrepreneurship, Leave a Nest brings together passionate researchers and professionals across industries to create new businesses and solutions to global challenges.
About Leave a Nest Capital Co., Ltd.
Established in 2020, Leave a Nest Capital Co., Ltd. (https://c.lne.st/) invests in seed and early-stage deep-tech ventures worldwide. Guided by the vision of “Advancing Science and Technology for Global Happiness,” the firm bridges science, technology, and organizational management to accelerate startups addressing critical global issues.
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