We solve business problems
with technology.
From solution consulting to tech selection, architecture, implementation, and QA — all in one place. Engineers who understand Japanese language and culture accelerate delivery with AI, while every line meets the same quality standard as hand-written code.
COMMON CHALLENGES
Does any of this sound familiar?
You want to use AI but don't know where to start
Requirements aren't fixed yet — you want to try and validate fast
You need one team you can trust for design, build, and testing
You'd consider offshore, but worry about language, culture, and quality
You want more speed without sacrificing quality
Your legacy system needs to move to modern technology
Hoang LLC solves all of these — end to end.
Why we exist
As engineers working in Japan, we saw firsthand how businesses struggled to adopt new technologies — especially AI. The gap between cutting-edge research and real-world application was growing wider.
We founded Hoang LLC to bridge that gap: connecting Japanese business needs with Vietnamese engineering excellence, powered by AI-first thinking.
Today, we serve clients across Japan with both our own products and dedicated engineering teams.
What We Build
OUR PROCESS
How We Solve Your Challenge
From first consultation to operations, we drive the project with one consistent team.
Listen & Frame the Problem
We listen to your business challenges and goals, identify the real problem, and propose the best solution.
Tech Selection & PoC
We choose the right tech stack and validate feasibility and risk quickly with a PoC or prototype.
Requirements & Architecture
We design for scalability, maintainability, and security — building a solid foundation for development.
Agile Build (AI-assisted)
We implement fast with AI assistance, showing you working software in short cycles.
Testing & Quality Assurance
Code review, automated tests, and QA throughout — every line meets the same standard as hand-written code.
Release, Operate & Improve
After launch we stay alongside you — operating, extending, and improving to support your growth.
End-to-end from upstream to downstream. We can also take on just the phases you need.
FEATURED WORKS
Recent Featured Projects
A selection of projects our core members have delivered for Japanese companies.
Japan Quality × Vietnam Engineering
Our cross-border model delivers the best of both worlds. Direct communication. No middleman. Fast, quality engineering.
Japan Office
- Strategic Planning & Direction
- Direct Client Communication
- Quality Assurance & Review
- Business Development
Vietnam Office
- AI/ML Engineering & Research
- Full-stack Development
- Product Design & Prototyping
- Education & Training
Engagement models: Labo (Dedicated Team) / Project-based / Time & Material
Why Partner With Us
One-Stop, Upstream to Downstream
From problem framing and solution consulting to tech selection, architecture, implementation, QA, and operations — handled end-to-end. No need to split work across multiple vendors.
A Team That Understands Japan
Core members have hands-on experience in Japan and JLPT N1–N2, and understand Japanese business culture. You talk to the team directly — no bridge layer.
AI for Speed, Humans for Quality
We use AI to accelerate delivery and cut cost — while never compromising on code review, testing, or quality standards. Every line meets the same bar as hand-written code.
Fast Delivery That Moves With You
We validate value fast with PoC and MVP, then iterate in agile cycles. A great fit for fast-forward teams who want to try new technologies and ideas.
Long-term vision
We aim to become a trusted AI technology partner for businesses in Japan and globally.
While building an ecosystem of digital products that create real value for communities.
For us, success is not measured by scale or speed, but by the real value created for people.
Our Philosophy
Technology exists to serve people
AI amplifies human capability, not replaces it
Quality over quantity — Japanese precision, Vietnamese speed
Partnership, not just outsourcing — we grow together
Our Commitment
We are committed to building technology and services that:
Company Information
Corporate No.
6040003029085
Founded
Dec 2025
Capital
¥1,000,000
Team
11
Japan Office (HQ)
Hoang LLC
CEO: Takasiima Tain
1141-15 Nadokari, Nagareyama, Chiba
Phone: 070-8359-7899
Vietnam Office (Dev Center)
Hoang
CEO: Hoang Van Thang
Khu 1, Pho Moi, Que Vo, Bac Ninh
Phone: 03-0000-0000
Ready to Build Something Intelligent?
Whether you need an AI-powered product, a dedicated engineering team, or technical consulting — let's talk.
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