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Company Overview

Piston Service Hub — Corporate Information

A formal overview of our corporate identity, organizational structure, business activities, and professional standing as of April 2026.

Corporate Profile

Company at a Glance

Company Name Piston Service Hub Co., Ltd.
株式会社匠ソリューションズ
Established April 2011
Representative Director Kenji Watanabe
Capital ¥50,000,000
Employees 120 (as of April 2026)
Head Office 3-3-7 Roppongi, Minato-ku,
Tokyo 106-0032, Japan
Business Activities Business consulting, digital transformation advisory, organizational development
Fiscal Year End March 31
Main Bank Mizuho Bank, Ltd. — Roppongi Branch
Corporate Structure
What We Do

Our Business Activities at a Glance

Consulting Services

Structured advisory for corporate strategy and operations. We work directly with executive leadership to clarify priorities, define frameworks, and drive measurable outcomes.

Digital Solutions

Technology integration and process digitalization to improve efficiency across business operations. We assess readiness, plan transitions, and support implementation throughout.

Human Capital

Organizational development and team capability building, fostering leadership at all levels and creating environments where structured growth is possible and sustainable.

Organization

How We Are Structured

Company Milestones and Organizational Structure

Piston Service Hub operates under a flat, transparent organizational model. Decision-making is shared across practice leads and senior consultants, supported by a central coordination team. Each business unit maintains clear accountability through defined reporting structures while retaining the agility to collaborate across functions. This approach ensures that client engagements are staffed with the right expertise, and that internal knowledge is shared efficiently across the organization.

Location

Head Office — Roppongi, Minato-ku

Contact & Access Information

Address 3-3-7 Roppongi, Minato-ku
Tokyo 106-0032, Japan
Business Hours Monday – Friday
09:00 – 18:00 JST
Telephone Available upon confirmed appointment
Email contact@pistonservicehub.com
Nearest Station Roppongi Station (Tokyo Metro Hibiya / Toei Oedo Lines)
Approx. 3-minute walk from Exit 3

Office Location — Roppongi, Tokyo

Roppongi Station (Metro) | [Exit 3] — — — — — — — (3 min walk) | Roppongi Hills ——— [TAKUMI SOLUTIONS] (Mori Tower) 3-3-7 Roppongi Minato-ku, Tokyo 106-0032 JAPAN Nearby: Azabu-Juban (Oedo Line, 1 stop) Kamiyacho (Hibiya Line, 1 stop)
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Affiliations

Professional Memberships & Partners

We maintain active membership with leading industry and trade organisations, reflecting our commitment to professional standards and collaborative progress across sectors.

Tokyo Chamber of Commerce & Industry

Japan Business Federation (Keidanren)

Digital Transformation Alliance Japan

Management Consultants Association

Japan HR & Organizational Development Forum

Asia-Pacific Business Council

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