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Stockmark
AI platform for business intelligence and sales insights
About Stockmark
Stockmark is a Japanese startup specializing in natural language processing and generative AI to support corporate decision-making. Founded in 2016 by Kosuke Arima, the company is headquartered in Tokyo, Japan. The current CEO is Tatsu Hayashi. Stockmark has developed several proprietary Large Language Models (LLMs) focused on the Japanese language and business contexts, addressing the challenge that only a small fraction of generic LLM training data is in Japanese. The company has developed models with up to 100 billion parameters and has been selected for all phases of the Japanese government's GENIAC project to strengthen domestic generative AI development.
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The company's offerings are centered around two main products: "Aconnect" (formerly Anews) and "Stockmark A Technology" (SAT). Aconnect is an AI-powered platform that provides business information and intelligence by aggregating and analyzing internal documents, web news, and technical literature like patents and reports. It helps organizations discover market opportunities and risks by delivering relevant information from domestic and international sources in Japanese, English, and Chinese. SAT is a Platform-as-a-Service (PaaS) that offers the underlying systems of Anews, such as information structuring, search, and classification technologies, to companies looking to implement their own generative AI solutions.
The business model for Aconnect is based on the number of users, while SAT operates on a usage-based, pay-as-you-go model determined by the volume of data processed. Stockmark serves enterprise clients, particularly in the manufacturing sector, and aims to provide an "Innovation as a Service" platform that supports the creation of new businesses. The company has raised a total of over ¥8.8 billion (approximately $58.8 million) through multiple funding rounds. Its latest funding was a Series D round in October 2024, raising ¥4.5 billion led by Polaris Capital Group, with plans to use the capital for R&D, talent acquisition, global expansion, and potential M&A activities.
At a glance
- Status
- Operational
- Founded
- 2016
- Headquarters
- Tokyo, Japan
- Employees
- 118
- Open positions
- None listed
- Dealroom signal
- 85.0/100
- Sub-industry
- CRM & Sales
- Sector
- AI, Business Intelligence, Decision Making, Core AI, Generative AI, genAI Model Maker, genAI Applications, AI Model Maker, AI Applications
- Technology
- Artificial Intelligence, Machine Learning, Natural Language Processing
- Business model
- SaaS
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES DOther financing | Nov 2024 | $30M | $119M | Undisclosed | — |
| SERIES DOther financing | Oct 2024 | $35M | $139M | Polaris Capital Group | ↗ |
Growth signals
Latest recorded traffic for Stockmark is 65K monthly website visits, down 18.8% over the last three months. Stockmark's team grew 13.5% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A2 investors entered at this stage
World Innovation Lab
NTT DOCOMO Ventures
Series B and later7 investors entered at this stage
Daiwa Corporate Investment
Tohoku University Venture Partners
Bonds Investment Group
Mitsubishi UFJ Financial Group
Hakuhodo DY Ventures
UNITED
Polaris Capital Group
Other known investors5 additional known investors
Fujitsu Accelerator
Japan Finance
Mizuho
Nvidia Inception
Plug and Play
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Stockmark on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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