We’re your full-stack
Marketing Team in Japan.

Core Principles

Execution

We don’t just advise; we embed ourselves in your team as true execution partners.

Data-Driven

We deliver actionable, data-based insights that eliminate ambiguity.

Transparency

We highly value transparent communication, especially since we rarely meet in person.

Outcome-first

We focus on tangible growth and measurable impact, not just outputs.

Meet Us

Founder photo 1

Leo Hirata

CEO & Co-Founder at JDOC | Ex-SAP & Audi | Global Marketing Strategist

"With a career rooted in Germany’s leading global enterprises (SAP, BASF, Audi) and a background as a Japanese-German simultaneous interpreter, I specialize in bridging cultures through high-impact marketing and consulting. I hold a graduate degree from Heidelberg University.

My expertise lies in engineering explosive organic growth. Even for highly niche products, I design precise strategies and creatives that generate hundreds of thousands to millions of views without a dime spent on ads. On Instagram, I successfully built a following of 150,000+ in just 6 months with zero ad spend. However, my ultimate focus is never on vanity metrics; I am relentlessly committed to driving bottom-line revenue and tangible business growth.

Having backpacked across more than 40 countries, I experienced firsthand the world's profound fascination with Japanese culture. Driven by this realization, I co-founded JDOC with a clear mission: to deliver Japan’s unique value to the global stage."              

Founder photo 2

Takumi Noguchi

COO & Co-Founder at JDOC | Ex-SAP | Tech & Performance Marketing

"Operating at the intersection of technology and marketing, I build digital ecosystems that drive tangible revenue. During my student years, I was selected as Japan's AI & Robotics representative by the Ministry of Foreign Affairs and launched an IT service from scratch, rapidly scaling it to 20,000 monthly active users.

After exploring 30+ countries, I joined SAP Japan, where I spearheaded multi-billion-yen IT system implementations.

My true strength lies in delivering exceptional ROI. Because I oversee everything from data-driven ad operations and Web/App development to content marketing, I've achieved aggressive targets like B2B CPLs under ¥1,000 and consumer CPAs in the ¥2,000 range. I don't just "build systems"; I build engines for direct business growth.

Driven by my global experiences, I co-founded JDOC to elevate Japan’s unique culture and technological prowess into world-class businesses."

Company

Official Name JDOC, Inc. (Kabushiki Gaisha JDOC)
Registered Address 6-18-22, Mukodaicho, Nishitokyo, Tokyo, 188-0013 Japan
Representative Leo Hirata, CEO & Co-Founder
Takumi Noguchi, COO & Co-Founder
Phone +81-3-5050-4466
Established October, 2023
Businesses Digital Marketing & Strategy
・Global Digital Marketing Support
・Japan Market Entry Consultation
・Advertising Operation Support (PPC, Social Ads)
・Social Media Management & Strategy

Development & Creative
・Web System & Application Development
・Creative Production (Web, Video, Content)

Consulting
・Business Consultation for Overseas Expansion
・Inbound Marketing Support for Global Companies

E-Commerce
・E-Commerce Business Operations & Support
License Secondhand Dealer License: No. 308902520493 (Tokyo Public Safety Commission)
Contact inquiry@j-doc.jp