Leave a Nest Capital
Iidabashimiyuki Bld., 1-4, Shimomiyabicho, Shinjuku-ku, Tokyo, 162-0822, Japan
Overview
Leave a Nest is a group of researchers. It was founded by 15 graduate students in the field of science and engineering in 2001 and continues to this day. Each and every one of us sets forth their own Questions and works together with various researchers and companies that support the Passion to achieve Advancing Science and Technology for Global Happiness.
- Total investments
- 2
- Lead investments
- 0
- Investments · 12mo
- 1
- Active investors
- 3
Sector focus
- Consulting
- Education
- Human Resources
Investment portfolio
- Tenchijin
Participated · Series B · Sep 2025
Tenchijin merges satellite big data with proprietary AI algorithms to deliver insights that make invisible ground-level risks and value visible. Its core product, the water-utility digital-transformation service “Uchū Suidokyoku,” launched in April 2023 and has already been adopted by numerous municipalities, surpassing 50 cumulative contracts by September 2025. Beyond water infrastructure, the company is extending its technology stack to agriculture and renewable-energy applications and is even developing its own satellites to build an end-to-end data platform. The newly raised funds will be directed toward hiring engineers, enhancing satellite-data analysis and water-resource-monitoring algorithms, expanding domestic and international sales networks, and strengthening its multi-satellite cloud data infrastructure. Branding and market-awareness initiatives are also planned. Headquartered in Tokyo’s Nihonbashi district, Tenchijin positions its mission as “optimizing human civilization through space big data.” Including the latest round, its total funding—equity and debt—now stands at roughly ¥1.9 billion.
- ElevationSpace
Participated · Seed · Mar 2022
ElevationSpace is developing the ELS-R series re-entry satellites and the ELS-RS high-frequency cargo recovery service to return payloads from orbit to Earth. The company is close to completing assembly of AOBA, its first private re-entry satellite and the inaugural ELS-R model. ElevationSpace leverages Japan’s small-satellite lift-guided re-entry expertise for returning payloads and crew from space. It has pursued global partnerships, including an agreement with Axiom Space and plans to integrate Redwire’s biopharma technology into its platform. Financially, the company has raised $63.5 million in total after securing $40 million in its Series B. Management framed the funding as supporting expansion of domestic and international business and service development under its vision of building an in-orbit transportation network.