Grand TechChange the workplace with technology — without stopping what works.
AI development, custom system development, SaaS, and workplace-improvement training, end to end. Rather than replacing your core systems overnight, we extend them with add-on AI and sales systems for efficient, resilient operations.
Building the systems that support
Japan's workplaces.
Custom system development
Contract development of web and business systems — from requirements through design, development, and operations.
AI & LLM implementation
Embedding generative AI and LLMs into your workflow to automate research, drafting, and decisions. Autonomous AI agents too.
In-house products & SaaS
Industry-specific systems and SaaS developed in-house — ready to use, at low cost.
Process improvement & DX training
We organize workflows and support digital adoption hands-on — building systems that actually get used.
Extend with add-ons. Change without stopping.
Add-on extension
We extend your existing core systems with add-on AI and sales systems — without stopping them.
Phased development
From ¥500,000. Start small and grow step by step — a low-risk way forward.
Workplace-first
We build from real problems on the ground. We don't build systems nobody uses.
What the starting price covers
The ¥500,000 starting price applies when development is divided into smaller phases. We review the workflow, data, screens, and any integration with existing systems, then specify what the first phase includes, what it excludes, the timeline, and the cost in an individual proposal. The proposal also clarifies whether later phases, operations, or maintenance are included.
Industry-specific systems, ready now.
View All Products- becon — AI Factory Managerbecon.guida.jp
- Budo Scoring Systemguida.jp/products/budo
- SSW AI — for Supervising Orgsrista.guida.jp
- Zairyu — Immigration Practice Managementzairyu.guida.jp
- Zairyu Self — Visa Renewal (Beta)indi-nyuukan.guida.jp/ja
- SSW AI — for Sending Orgsguida.jp/products/ssw-soshutsu
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Start small, grow with confidence.
Assessment
We organize your challenges and current systems, and define requirements.
Proposal & estimate
We present a phased plan with cost estimates.
Phased development
Build and release small, adjusting with feedback from the field.
Operations & improvement
Continuous improvement and extension after launch.
Let's solve your workplace problems with technology.Start small, grow with confidence.
Custom development or AI adoption — start with a free consultation. Phased development lets you start small.