
Stockmark
4.2
Stockmark builds AI for Japanese manufacturers' R&D and decision-making. Its Aconnect agent gathers from news, papers, patents and government reports alongside internal documents, flags risks and opportunities, and assists with prior-art search and technical problem solving. It also runs a platform business for structuring tacit expert knowledge. Pricing is not published.
- Japanese UI
- Enterprise contract

- Pricing
- Contact sales
- Free tier
- No
- Commercial use
- Check the vendor terms
- Japanese UI
- Yes
- Enterprise contract
- Available
What it is good for
- R&D teams doing prior-art and technical landscape research
- Manufacturers with expert knowledge locked in individuals
- Monitoring regulatory and competitive signals in Japanese
- Decision support that needs both external and internal sources
Strengths and trade-offs
Strengths
- Covers Japanese patents and government sources that international tools miss
- Combines external research with internal documents
- Domestic LLM and VLM development in-house
Trade-offs
- No published pricing
- Focused on manufacturing R&D — narrow outside it
- Knowledge structuring is a consulting engagement, not a product install
Editors' review
The source coverage is the moat
International research tools do not index Japanese patents, J-STAGE or ministry reports well. For an R&D team in Japan, that gap is the whole problem, and it is not one a better model solves.
The tacit-knowledge work is consulting with software attached. Budget and plan it as such.
Verdict
Strong fit for Japanese manufacturing R&D. Little reason to look at it otherwise.
Compiled from official documentation and public sources, with our own editorial judgement. We do not publish figures we cannot source.