Company
Consilegy drives the growth of SMEs, startups, and local governments through strategy, systems and hands-on support
Mission
With strategy and systems, we build a world where passion inspires action
From project design to tool implementation, we work alongside you to build field-driven, self-sustaining operations.
Through strategy and systems, we strive to create a world where more people can bring their ideas and aspirations to life.
Vision
Building a network of empowered people and organizaions that open new paths to the future
With technology and strategy as our foundation, we strive to expand environments where everyone can work in their own way.
Value
Strategic Thinking Powered by Hypotheses × Data
Making decisions with measurable metrics and grounded hypotheses
Partnerships Built on Results
Nurturing partnerships with shared goals and openness in every process
Continuous Improvement: Test small, Learn Quickly
Driving improvement by learning from small experiments and embedding them into systems
Professionalism: Taking Responsibility for Every Commitment and Outcome
Exceeding expectations with confidence, uncompromising quality, and precise scope management
About the Founder

Founder & CEO of Consilegy Seiko YAMAGUCHI
Strong results are achieved when a sound strategy connects seamlessly with daily operations. At Consilegy, we design strategies, turn them into actionable systems, and support you until these systems are running smoothly.
We value long-term partnerships over one-off transactions, walking alongside you as trusted allies. Consilegy exists as the expert partner to make this possible.
Biography
After working at an IT consulting firm, I became a freelancer in 2015. As a freelancer, I engaged in a wider range of marketing roles as well as project management.
In May 2025, I founded Consilegy LLC. My strengths lie in designing marketing strategies that maximize results and improving operational efficiency through the use of digital tools.
Value Proposition
- Designing PM frameworks that connect strategy to implementation
- Data-driven marketing strategies and KPI design
- HubSpot implementation, operations, and workflow design
- Efficiency through standardization and automation of operations
- Planning and executing initiatives to attract digital nomads
Qualifications & Certifications
- HubSpot: Marketing Software Certification
- Google: GAIQ/Ads(Search・Display・Video・Shopping・Measurement)
- Shopify: Theme Development/Product Fundamentals
- Others: JADP Certified Mental Psychology Counselor / Advanced Psychology Counselor
Company Overview
Company Name: Consilegy
Established: May 2025
Address:
3F, R-Cube Aoyama, 1-3-1 Kita-Aoyama, Minato-ku, Tokyo, JAPAN