Who We Are

We Are Y&U for Japan.

Y&U bridges language and technology to help individuals and businesses connect more effectively. Through our interpretation, translation, and mobile app development services, we create seamless experiences designed to support your growth.

Free Consultation Learn who we are

120+Projects Completed

10+Years Experience

94%Client Satisfaction

Japan-native GTM

Messaging, localization & execution tuned for Japan.

Skills

Who We Are

We Are Y&U

Connecting people and ideas through language services and innovative mobile app development.

Our Visions

Small Team. Big Impact Through Language & Technology.

We empower individuals and businesses by combining trusted language services with innovative mobile app development—helping you communicate, connect, and grow with confidence.

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Client-First Communication

We begin by listening closely to your goals and communication needs. Whether supporting multilingual conversations or building mobile applications, we tailor our approach to ensure your message is delivered clearly, naturally, and with purpose.

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Clarity, Accuracy, and Trust

Language requires precision. We deliver high-quality interpretation, translation, and app experiences with accuracy and transparency, ensuring your ideas are communicated authentically and consistently across cultures and platforms.

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Innovation with Real-World Impact

Our technical expertise enables us to turn ideas into practical digital solutions. From streamlined workflows to intuitive mobile apps, we create tools that solve real problems while enhancing usability and engagement.

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Simple Solutions, Meaningful Results

We believe effective communication—and effective technology—should be simple. By reducing complexity and focusing on what truly matters, we help you achieve results that scale, resonate, and create lasting value.

How We Can Help

Support for Your Communication and Development Needs

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Interpretation & Real-Time Communication

On-site and remote interpretation (Japanese ↔ French / Japanese ↔ English)
Business meeting and negotiation support
Event, interview, and seminar interpretation
Cross-cultural communication assistance

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Translation & Written Content Services

Document translation (business, technical, academic)
Website, app, and product content translation
Email, reports, and customer communication support
Proofreading and natural-language polishing

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Mobile App Development

iOS and Android mobile app development
UI/UX design and prototype building
Feature enhancement and maintenance for existing apps
Backend integration and cloud-based solutions

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Software & Windows Application Development

Custom Windows desktop application development
System automation and workflow optimization tools
Data handling, processing, and utility software
Technical consulting and long-term maintenance support

News

Latest from Us.

Updates from our work with global SaaS teams and the Japan GTM ecosystem.

Nov 25, 2025

Launches Marketing & Localization Services for Global SaaS and B2B Tech Companies

A dedicated Japan-native partner helping global B2B SaaS teams launch and scale in Japan with clear messaging, localization, and GTM strategy.

FAQs

Frequently Asked Questions.

Practical answers to common questions about working together.

QWhat services do you offer?⌃

We support Japan GTM through localization, messaging, content, website adaptation, marketing execution, and GTM strategy for global B2B SaaS.

Ready to unlock Japan's business potential?

Share a little about your product, target customers, and current Japan plans. We'll reply with a short perspective and propose next steps.

Emailhiromi.nagase@yandu.eu

Phone