Participated · Convertible Note · Jul 2026

Rege Nephro is developing therapies for kidney disease and is advancing a clinical pipeline in the renal space. The company is preparing for clinical trials and is using interim financing to accelerate R&D and pipeline advancement. Its recent bridge financing is intended to extend cash runway and de-risk near-term development milestones ahead of a larger Series C. Rege Nephro says this capital raise is part of a longer-term strategy to strengthen its position in renal therapies. The company plans to pursue a Series C in autumn 2026 and beyond as it progresses clinical and development activities.

Led · Seed · Jul 2026

Star Signal Solutions leverages observation, image-analysis, and orbital-analysis technologies cultivated at JAXA to provide high-precision SSA data and solutions for satellite operators, government agencies, and commercial customers. The company is building a global observation network and a catalog capable of observing and tracking objects including sub-10cm debris, and is advancing development, prediction, and cataloging capabilities. It was selected for the Space Strategy Fund Phase 2 and is implementing a large-scale observation facility in Australia to expand its measurement coverage. The startup plans to commercialize its core technologies and accelerate overseas expansion while strengthening hiring, R&D, and partnerships. Star Signal Solutions was founded on October 17, 2023, and is headquartered in Nihonbashi Kakigaracho, Tokyo.

Participated · Series B · Jul 2026

JAPAN AI develops AI agent products aimed at enterprise customers to support corporate 'DX and AX' (digital transformation and AI transformation). The company focuses on expanding agent capabilities and integrating those agents with marketing SaaS to address automation needs driven by labor shortages. JAPAN AI is based in Tokyo and plans to use its Series B proceeds for hiring talent and product development. The firm secured institutional backing from major domestic investors, which the company and coverage framed as validation from potential corporate buyers. The company’s recent ¥1.9 billion Series B is its most recently disclosed funding event in the article.

Led · Seed · May 2026

ATOM develops Japan-made bipedal, dual-armed humanoid robots powered by what it calls Physical AI, enabling perception, decision-making, and real-world action. The company builds both the robot hardware and AI foundation models in-house, using data from operations to iterate on design and software. It targets factory and warehouse tasks such as transport, replenishment, and kitting, aiming to address labour shortages in Japan. ATOM was founded by CEO Shunsuke Aoki and is based in Tokyo. Following the ¥3B seed round, the company plans to hire AI engineers and expand its robotics and business infrastructure to move toward deployment. The article notes the sector is capital-intensive and competitive, with commercialization challenges typical of humanoid robotics.

Led · Series A · May 2026

secondz digital is a Yokohama-based startup that builds AI agents to support enterprise customer engagement and AI-native sales processes. It offers end-to-end services from strategy design through AI agent development and implementation for enterprises. The company's agents focus on automating front-end sales tasks such as customer research, hypothesis building, and proposal preparation. secondz digital is described as an early mover in AEO (AI Engine Optimisation) and GEO (Generative Engine Optimisation). The company aims to work with enterprise clients and, via its Series A backer Sumisho Venture Partners, may gain collaboration opportunities through Sumitomo Corporation's industrial network.