Granite-Integral Leads $15M Series B in Notta to Build the Future of Voice Intelligence from Japan

Tokyo/Singapore, Dec 11th 2025 — Granite-Integral, the cross-border growth investment platform formed by Granite Asia and Integral GlobalTech Partners, today announced it has led the $15 million Series B round in Notta Inc., a fast-growing Japanese AI company redefining how people and organizations turn conversations into knowledge and action.

Notta’s voice-intelligence platform combines best-in-class speech recognition with AI-driven summarization and task automation, enabling individuals and enterprises to convert spoken dialogue — from meetings to interviews to customer calls — into structured, actionable insights.

The investment marks a key step in Granite-Integral’s “Japan Nexus” strategy: backing technology companies that are born or rooted in Japan and have the potential to scale globally from this base, or non-Japanese companies with the potential to enter the Japan market.

Turning Voice into a Knowledge Engine

Founded in 2020, Notta has become one of Japan’s most trusted AI productivity tools, blending the precision expected by Japanese enterprise users with intuitive design and seamless cross-platform integration.

Its core product — a “voice-to-knowledge” engine — goes far beyond transcription. It records, transcribes, summarizes, and organizes information across text, audio, and video, serving as a complete workflow platform for teams navigating the shift toward hybrid and AI-assisted work.

As the next step, Notta plans to expand its AI-agent capabilities and deepen integrations with platforms such as Zoom, Google Meet, Salesforce, and Slack, positioning itself as a leader in voice-enabled automation.

Granite-Integral’s Japan Nexus Strategy

For Granite-Integral, Notta represents the essence of the Japan Nexus — where world-class innovation meets Japan’s depth of quality, precision, and customer trust.

“Notta is redefining how AI can serve real enterprise needs through deep local execution,” said Joe Yan, Co-head at Granite-Integral. “Japan’s market rewards precision, security, and cultural understanding as much as technical innovation. Notta’s success shows that when you build with respect for that DNA, the outcome is globally competitive technology that can scale far beyond Japan.”

Why Notta Chose Granite-Integral

“From our first conversation, Granite-Integral stood out for its understanding of what it truly takes to scale a technology business in and from Japan,” said Ryan Zhang, CEO of Notta. “They bring the rare combination of deep local insight and global perspective — a partner who understands both the rigor of Japanese enterprise expectations and the speed of international markets. With their support, we aim to transform voice-driven AI from a productivity tool into an everyday intelligence layer for businesses worldwide.”

Partnering to Build Global Value from Japan

Through this partnership, Granite-Integral will work closely with Notta’s leadership to strengthen enterprise capabilities, enhance compliance frameworks, and accelerate global expansion, while maintaining Japan’s gold standard of quality.

This collaboration reflects Granite-Integral’s conviction that Japan can be a launchpad for next-generation AI companies, not just a market for imported innovation. By combining the discipline and trust of Japan’s enterprise culture with its growth capital and cross-border networks, Granite-Integral is building a platform where technology companies evolve from “Japan-for-Japan” to “Japan-to-World.”

About Notta Inc.

Under the vision “Discovering infinite value from conversations,” Notta develops services powered by cutting-edge AI technologies in speech recognition and natural language processing (NLP). The company has obtained ISO 27001 and SOC 2 Type II certifications, providing enterprise-grade security trusted by listed companies, government agencies, and municipalities.

https://www.notta.ai

About Granite-Integral

Granite-Integral is a joint venture between Granite Asia and Integral GlobalTech Partners, managing USD 100 million in committed capital. The partnership combines Granite Asia’s experience in technology investments across Asia-Pacific with Integral’s operational expertise and deep networks in Japan.

Granite-Integral backs growth-stage technology companies that have established strong product-market fit and demonstrated domestic scale, driving the next wave of Digital Transformation — spanning consumer tech, automation, enterprise solutions, and emerging sectors such as AI, robotics, energy transition, health tech, and fintech. By blending venture-like agility with buyout-level operational excellence, the platform provides strategic guidance, local execution, and extensive cross-border networks to accelerate global growth.

https://www.graniteasia.com/granite-integral