CEO Message
CEO Message
The tedious work? AI does it. You just press approve.
Takuya Tominaga
CEO, Leach Inc.
Matching documents by eye. Retyping the same numbers over and over. At most companies today, people still do this tedious work entirely by hand.
Our concept is simple. AI does that work. People just check it and press “approve.” The tedious manual labor disappears, and only the final judgment stays in human hands.
Until AI came along, this simply couldn't be built — the technology to judge the content in a person's place didn't exist. Work that once only people could do, AI now does itself. So we can build these systems one after another and bring them to companies around the world.
The time this frees up can go to what really matters. Thinking up new things, researching, creating. The more time the world spends there, the more likely world-changing innovation becomes. That's what I truly want to grow.
The name Leach means “to soak in.” Rather than forcing a grand system on you, we let AI soak into your workplace like water into soil. Before you know it, the tedious work is gone — that's the kind of company we want to be. If you're wondering where to start, just reach out.
CEO, Leach Inc.
Takuya Tominaga
Career & Awards
A Man Who Gave His Life to Code
A lifetime of going way too far — on purpose. Maybe that's why there's no bluff in what we build.
Elementary / Junior High School
Born in 1989. Played Pokémon Red, Green & Blue and thought: "I want to make games like this." Started programming. In junior high, built a password-protected BBS for his classmates. It took off immediately — but he forgot file locking, and all the data was wiped.
KOSEN (College of Technology)
Entered National Institute of Technology (KOSEN), Kumamoto College — Dept. of Information & Electronic Engineering; then advanced to the Production Systems Engineering course.
- Supercomputing Contest 2006 — Finalist
Reached the national finals of a programming contest where students solve problems on supercomputers.
Student Years
Interned at Akatsuki, Speee, and eXmotion — all three later went public (IPO). Built an iOS chat app in Objective-C in 2013.
- Speee Advanced Internship — Winner
- MOVIDA SCHOOL — 2nd Cohort — Second cohort of Taizo Son's entrepreneurship program.
Kept coding after work, sleeping on the floor. A tumor (blood clot) formed on his back and had to be surgically removed at a Red Cross hospital.
Graduate School
Master's degree from the Graduate School of Information Science at NAIST (Nara Institute of Science and Technology).
- Triple Academic Award — DICOMO 2014 Best Presentation (1st of 293), Best Paper, and DPSWS 2014 Best Poster.NAIST Awards ListDICOMO 2014 OfficialDPSWS 2014 Official
Survived on 4 hours of sleep, fully immersed in research — and took home a triple crown of academic awards.
Toshiba Software Engineering & Technology Center — 9 Years
Covered HDD firmware (low-level) to AWS data analytics and web apps (high-level). Seconded to the executive office of subsidiary Toshiba Tec as the youngest ever. Worked on joint projects with Google and McKinsey.
- University of Tokyo — Toshiba AI Engineer Training Session A — 2nd Place — Placed 2nd of 23 in Toshiba's internal AI program co-developed with UTokyo; first recipient from the Software Engineering & Technology Center.
- Patent No. 7086873 — Inventor (Right-holder: Toshiba Corp.) — Obtained while at Toshiba and publicly verifiable on J-PlatPat.Patent Record
- Toshiba Internal CTF 2022 — 5th / 68 Teams — Score: 3511/3551; earned the highest Level 5 rating for the CISO role.
- Toshiba Software Engineering & Technology Center — Outstanding Performance Award — Internal Award of Excellence for outstanding business results.
Toshiba Tec x Google data business project (while at Toshiba)（Photo: Google Cloud Blog）Google Cloud BlogMcKinsey Official Article Broke a plate while washing dishes, slicing his middle finger halfway through. The tendon barely held — he can still code today. Rode the BTC wave and by his second year out of college, had already eaten everything he wanted and traveled everywhere he wanted.
COVID-19 Golden Week (May 2021)
A dream he'd chased since his Toshiba days: cycling the length of Japan. The stars never aligned — extended leave, same-day hotel availability, and decent weather never came together at once. Then COVID hit, hotels emptied out, and he thought: "Now or never." He cycled approximately 1,350 km from Yokohama to Kumamoto over 11 days (9 riding days + 2 rain rest days) on an e-bike.
November 2024
Founded Leach, Inc.
Tedious work goes to AI — people just check the result and press approve. Founded Leach, Inc. to bring that system to companies around the world.
Since Founding — Now
- YC-recognized Hackathon c0mpiled-7 — Most Impressive Engineering Lift — Organized by Transpose Platform (YC-recognized), with 230 participants; built in 4 hours with an international team formed that day.Event Details
- Builders Weekend 2026 Tokyo — VoiceOS Award — Co-hosted by Digital Garage with 205 participants; built in 48 hours with a three-person international team formed that day.Award Blog Post
- JSSST 42nd Annual Conference — Invited Tutorial Lecturer — Invited to teach a tutorial on generative AI agents.Press Release
Codes 17 hours a day. His eyes twitch constantly. But his hands never stop.
All 12 AWS Certifications (Achieved in ~1 Month)
Achieved all 12 certifications at unprecedented speed globally. Full coverage from infrastructure to apps, security, and machine learning.
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