CUSTOM DEVELOPMENT
Unlocking the systems only large enterprises could afford.
The systems that form a company's backbone used to belong only to companies spending hundreds of millions. We custom-build around your operations, keep your current software, and stay through operations.
* We don't start with a build. First, Tech Advisory settles the requirements.
WHY WE BUILD
Systems that were never born are being born.
Some systems died at “that will run into the hundreds of millions of yen” and sent people back to Excel, fax, and month-end overtime.
Put those never-born systems back on the table. We build only what is needed, free people from repetitive busywork, and hand that time to sales and R&D — the work that builds your company's tomorrow.
HOW IT WORKS
We don't start with a build. We start with Tech Advisory.
We settle requirements and decide whether a build is worth it before development starts.
Start with Tech Advisory
Monthly plan
Review the work and decide what AI should handle.
Try it small first
Try it small
We decide whether ready-made AI is enough, whether to build, or whether to stop.
Build once it's settled
Custom quote
Build only once requirements and ROI are clear.
WHY IT'S WITHIN REACH
US-style development — Leach keeps the IP, you hold the license
- 1
Leach keeps the IP; you receive the license and monthly operations support.
- 2
We build on shared foundations and AI instead of starting from zero.
- 3
That makes systems once reserved for large enterprises reachable.
Examples of work you can hand over
Order intake through verification and invoicing
Connections with freee, Excel, and your current systems
Reading and transcribing PDF, fax, and email forms
Monthly closing, matching, and discrepancy checks
PRICING
Build fee + monthly operations — quoted individually
We build only what you need, so we can quote a figure you can actually carry. We lock the requirements in a free consultation and through the advisory, then put a number on it.
Time goes to sales and R&D. The system goes on to the next company.
We build systems loved by the field and by the people running the company — freeing the hours lost to retyping and matching so you can pour them into sales and R&D, the work that creates your next product and your next sale.
And the system we build for you goes on: we turn it into SaaS so it reaches companies with the same pain. Totsugo.com was born this way. Build it under contract, spread it as SaaS — that is how we work.
MISSION
We infuse AI into every workplace.
FAQ
Q. Does a large build fee hit us right away?＋
No. First, the monthly Tech Advisory settles requirements and ROI.
Q. If Leach keeps the IP, is that bad for us?＋
Your business data and confidential information remain yours. Leach keeps the program copyright, which is discounted from development cost.
Q. How long does development take?＋
It depends on scope. After requirements, we show small working pieces every few weeks.
Q. What if requirements change midway?＋
Continuous improvement is part of monthly operations. We design assuming the business will change.
Start with a free 30-minute conversation
We'll tell you where to start
AI, estimates, and systems — start with the one thing that bothers you most.