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External technical advisor for the AI era
Not just AI.
Ask about web, AWS, quotes, and development decisions
External Technical Advisor
You do not need a full IT department yet, but the technical decisions are too heavy to hold internally. In a 30-minute online technical diagnosis, we map the issue, next step, and budget range before any sales meeting.
Form → 30-min online diagnosis → one-page proposal
PDF · 20 pages · instant DL
MINATO / LABIC
Selected for Minato City accelerator LABIC
Leach is a Minato City accelerator company, supporting online technical advisory across AI, web, AWS, and security.
Read the announcementThe website handles sales context. People focus on diagnosis and implementation.
35%
Process improvement
28%
Cost reduction
22%
Adoption rate
AWS Certified
All 12 Achieved
Some of the companies using our AI technical advisory
ONLINE SALES
The website is the first sales rep
Before a meeting or materials request, you can understand what to ask us, how we work, the price range, and when we say no.
Clarifies what you can ask
AI, web, AWS, security, vendor quotes, SaaS links, and how to work with developers are separated on the page.
Pre-qualifies via form
We ask industry, employee count, current tools, monthly volume, budget range, and distance to the decision maker upfront.
Classifies in 30 minutes online
We route the case to monthly advisory, spot review, custom development, LeachOS, or decline.
Moves to a one-page proposal
Scope, first-month deliverable, monthly fee, and contract terms are summarized before e-signature and invoicing.
Do any of these sound familiar?
We want to discuss web, AWS, and security — not just AI
We cannot judge whether vendor quotes or proposals are fair
Unsure whether to proceed with a dev firm, SaaS, or in-house build
Not big enough for an IT department, but we want technical judgment outside
AI use, process improvement, and development questions are split and stuck
We want technical language for articles, case studies, and internal briefings
What the AI Advisor can do
Even just the advisor contract delivers all this
AI / generative AI use
We sort out which tasks should use AI and where human approval should remain.
Web / SaaS development consulting
We review landing pages, business systems, SaaS integration, and contracted development from the technical side.
AWS / security
We support decisions on cloud architecture, permissions, logging, data storage, and security requirements.
Vendor quote review
We flag unnecessary features, inflated effort, and risky approaches. Real example: compressed ¥1.7M to ¥1.0M.
SaaS consolidation / integration
We decide whether to keep or connect existing SaaS, Excel, Google Workspace, and internal systems.
Working with development firms
We organize requirements, acceptance criteria, responsibility splits, and first-month deliverables so neither side loses.
Technical articles / case studies
We put technology into words for blogs, case studies, internal briefings, and PR.
ONLINE DIAGNOSIS
What the 30-minute online diagnosis decides
This is not a sales pitch. It gathers the decision material needed before a contract.
What we confirm in the form and diagnosis
- Company, industry, employee count
- Technical area to discuss
- Pain or technical decision
- Monthly volume and frequency
- Current SaaS and system setup
- Budget range and decision-maker distance
- Whether an on-site visit is required
Routing after diagnosis
ROUTE 1
Monthly advisory
For ongoing technical judgment, quote review, internal explanations, and adoption direction.
ROUTE 2
Spot review
For one-off decisions on quotes, technical selection, design, or SaaS integration.
ROUTE 3
Custom build / LeachOS
For implementation or workflow systems. We scope first, then quote separately.
ROUTE 4
Not a fit / hold
If purpose, budget, owner, or deliverable is unclear, we will not force a sale.
Support Menu (key areas)
We support whichever areas your business needs
Scope organization
- Workflow visualization
- Prioritize AI candidates
- KPI setting
- ROI simulation
Adoption planning
- Roadmap creation
- PoC design
- Requirements review
- Vendor selection support
Tool selection
- ChatGPT / Claude / Gemini
- SaaS vs contracted dev judgment
- Quote validity check
- Security requirements
Internal training support
- Exec briefings
- Field leader training
- Prompt workshops
- Case study library
COST vs RETURN
Advisor Cost vs Savings
A small monthly investment returns this much
Annual cost comparison
Cheaper than an AI hire — outsource the judgment that returns people's time to core work
Vendor quote compression
Before
¥1.7M
After
¥1.0M
¥0.7M recovered
Legal AI ops cost
Before
100%/mo
After
60%/mo
40% time saved
AI hire vs advisor
Before
¥12M/yr
After
from ¥0.96M/yr
Over ¥10M/yr difference
Quote review, AI-fit diagnosis, and PoC design can all be discussed together.
AWS CERTIFIED — ALL 12 CERTIFICATIONS
AWS All 12 — earned in ~1 month
All certifications normally taking a year — earned by CEO Tominaga in about one month. Full coverage from infrastructure to applications.
SA Professional
DevOps Pro
SA Associate
Developer
SysOps
Cloud Practitioner
Networking
Data Analytics
Database
Machine Learning
Security
SAP on AWS
CERTIFICATIONS
Academic & corporate awards
DICOMO2014 Best Presentation Award (1st of 293)
DICOMO2014 Outstanding Paper Award (won alongside Best Presentation)
DPSWS2014 Outstanding Poster Award
Toshiba AI Engineer Training (co-developed with UTokyo) — Commendation
Toshiba AI Engineer Training — Certificate of Completion
Toshiba internal CTF 2022 — 5th of 68
CTF — Top Level 5 in every role
Without AI Advisor
Keep paying vendor list price,
waste millions of yen
- ×Can't spot inflated quotes
- ×Keep missing AI opportunities
- ×Hire AI talent at ¥8M–15M
With AI Advisor
Productivity gains
turn into a profit-generating investment
- Many real examples of quote compression, like ¥1.7M → ¥1.0M
- Instant answers on Slack, zero research time
- Start far cheaper and faster than hiring
Why Leach's AI Advisor
Strengths only Leach offers
All 12 AWS certifications
CEO earned all 12 in about one month. An advisor who can also see infrastructure.
Two public accelerator selections
Selected for Minato City LABIC and the top-40 practical-support phase of the Tokyo Metropolitan Acceleration Program.
We run our own AI products
We build and operate LeachOS (AI business system). Not armchair theory.
9 years at Toshiba R&D
Joint projects with Google and McKinsey. Understands large-company reality.
YC-recognized hackathon award
Engineering award at c0mpiled-7. Stays at the front of tech trends.
From online diagnosis to contract
Move from form submission to online start in six steps, without first in-person sales.
STEP 1
Diagnosis form
Send company, topic, and budget range
STEP 2
30 minutes online
Confirm issue, tools, and decision maker
STEP 3
Case routing
Advisory, spot review, build, or not-a-fit
STEP 4
One-page proposal
Scope, first deliverable, and monthly fee
STEP 5
E-sign / invoice
Start via e-signature or invoice
STEP 6
Online advisory
Run meetings, chat, and reviews online
REMOTE FIRST
Sales and meetings are online by default
We reduce travel and scheduling overhead so the time goes to business understanding, proposals, and implementation.
In-person meetings are not the default sales motion. We use them only for understanding, contracting, or on-site confirmation.
Handled online
- First consultation
- Sales meeting
- Proposal explanation
- Recurring meeting
- Quote review
- Internal-document review
In-person exceptions
- Meeting tied to a large contract
- Important closing
- Decision-maker meeting or dinner at a large company
- Workflow improvement that requires on-site observation
BOUNDARY
What we do not do
We keep scope explicit so advisory does not turn into unlimited miscellaneous support.
- Build something with AI without purpose or budget
- Casual first meetings that require in-person attendance
- Custom development with no workflow understanding or responsibility split
- Endless internal-discussion material without a decision maker
- Unlimited advice with unclear deliverable, deadline, and owner
Instead, the 30-minute online diagnosis separates monthly advisory, spot review, custom development, LeachOS, or not-a-fit.
Pricing anchors
After diagnosis, we route the work to monthly advisory, spot review, or custom development.
For companies trying an advisor first
Lite
Pricing
from ¥80,000/mo
After the 30-minute online diagnosis, we send a one-page proposal with scope and price.
- 1 meeting/month (1h)
- Light chat support
- Direction advice
- Technical decision sparring
Ongoing external technical advisor
Standard
Pricing
from ¥200,000/mo
After the 30-minute online diagnosis, we send a one-page proposal with scope and price.
- 2 meetings/month
- Vendor quote review
- Technology selection
- Light document review
Cross-team adoption support
Pro
Pricing
from ¥300,000/mo
After the 30-minute online diagnosis, we send a one-page proposal with scope and price.
- 4 meetings/month (weekly)
- Architecture review
- Internal explanation materials
- Adoption support
One-off technical decision
Spot
Pricing
Custom quote
After the 30-minute online diagnosis, we send a one-page proposal with scope and price.
- Quote review
- Technology selection
- Design consultation
- SaaS integration consultation
* Prices are before tax and are anchors. Every plan can start with a 1-month trial (single month). Advisory fees vary by scope, chat volume, and deliverables.
CASE STUDY
AI Advisor Case Studies
Listed firms, construction, manufacturing, public-sector IT and more
Construction hardware leasing
Rikiman Co., Ltd.
Tag-creation workload
90% reduction
Rolled out to all sites; vendor quote compression achieved too
Read the casePublic-sector IT solutions
Mizunara Co., Ltd.
pgVector design support
Selection advanced
Supported technology selection in a ¥60M municipal project
Read the case
AI entertainment
ExaEdge Co. Ltd.
Operating cost
40% reduction
Legal AI accuracy tuning plus architecture optimization
Read the casePRESS RELEASE
AI Advisor — press releases
[Case study] 90% reduction in tag-creation workload — Rikiman Co., Ltd. × Leach AI technical advisory
Leach Inc. begins providing AI technical advisory to leading hardware maker Rikiman
Leach lectured on generative AI at the Ueno Factory Park Hatsuka-kai in Mie, presenting factory use cases
Leach provides technical support for ExaEdge's generative AI development, improving analysis accuracy and speed
CEO MESSAGE
“We want to adopt AI” but
unsure where to start? That is exactly when to talk.
After leaving the corporate world, I saw people reconciling documents by holding rulers against monitors, and copy-pasting by hand. AI and DX are discussed up in the air, while people on the ground are exhausted. Generative AI can change that. With all 12 AWS certifications and 9 years at Toshiba R&D, I will partner on your first step.
Takuya Tominaga / CEO
Read the full CEO messageFAQ
Q. Can we start with a one-month trial?＋
Yes. In the first month you can try Slack consultation, quote review, and AI-candidate triage, then confirm fit and ROI before a full contract.
Q. What can we ask on Slack?＋
AI direction, vendor quote review, technology selection, workflow improvement, PoC design, existing SaaS integration — general AI and systems consultation.
Q. What does a quote review cover?＋
We check vendor quotes technically and flag unnecessary features, inflated effort, and risky approaches. In one real case we compressed ¥1.7M to ¥1.0M.
Q. How does advisory differ from contracted development?＋
Advisory centers on judgment, review, and ongoing support. When implementation is needed, we organize requirements under advisory, then quote contracted development separately.
Start with a 30-minute online technical diagnosis
Map the issue and next step before any meeting
Discuss AI, web, AWS, security, vendor quotes, and development decisions online.