Hubble Japan

Hubble Japan, established in April 2016, offers a suite of cloud-based services designed to streamline contract management for enterprises. The company was co-founded by CEO Shinpei Hayakawa, whose background in an accounting firm exposed him to inefficient business operations, inspiring him to teach himself programming and launch the venture. He is joined by CTO Katsuya Fujii, who brings research experience from Sony CSL and MIT Media Lab, and CLO Tomoya Sakai, a lawyer with a background in M&A and corporate law.

The firm operates in the legal tech market, providing a subscription-based software-as-a-service (SaaS) platform to a diverse client base that includes large corporations like Otsuka Pharmaceutical, Nestlé Japan, and TOHO Cinemas, as well as venture companies. Hubble addresses the common challenges of contract management, such as version control, dispersed communication, and the difficulty of tracking historical data, which often lead to operational inefficiencies and increased risk. Revenue is generated through subscriptions to its tiered product offerings.

The company's core product, "Hubble," is a contract lifecycle management (CLM) platform that facilitates collaboration between legal and business departments. It centralizes the entire contract process from creation and review to management of the final executed documents. Key features include automatic version control, comparison of document drafts, and integrations with common business tools like Microsoft Word, Slack, and various electronic signature services. A complementary service, "Hubble mini," leverages AI (including OpenAI's GPT-4o) to automatically create a comprehensive contract database by simply uploading PDF documents. This tool extracts key information to build a searchable repository, sends renewal notifications, and complies with Japan's Electronic Books Preservation Act. Additionally, Hubble offers "OneNDA," a platform for standardizing and streamlining the non-disclosure agreement process among participating companies.

Since its founding, Hubble has achieved significant milestones, including multiple funding rounds to fuel its growth. After a Series A round, the company secured a Series B fundraising, raising a cumulative total of approximately 1.5 billion JPY by July 2025 to enhance its product development, particularly in generative AI, and expand its sales and customer support teams for mid-market and enterprise clients. The platform has been adopted by over 500 companies and maintains a customer retention rate of over 99%.

Keywords: contract lifecycle management, CLM, legal tech, SaaS, contract database, document management, version control, AI in legal, contract automation, workflow automation, legal operations, corporate legal, business process efficiency, compliance management, electronic signature integration, contract review, enterprise software, Japanese market, Shinpei Hayakawa, contract collaboration, risk management, document repository, renewal management, legal tech startup, B2B SaaS