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About Us

Trust and results
are the foundation of who we are.

Trust. Expertise. Results.

Our Philosophy

Our Philosophy

"See the Essence. Challenge Together."

There are no ready-made answers to business challenges. But by asking the right questions, thinking deeply, and building solutions in partnership with our clients — we can always find a way forward.

Before we are consultants, we are partners. We care not only about numbers and strategy, but about the culture, people, and trust within each organisation — supporting sustainable growth over the long term.

Leadership Team

Leadership Team

K

Seiichiro Kobayashi

Managing Partner

Former partner at a leading international strategy consulting firm. Specialist in M&A and business restructuring with a track record of over 100 deals. BA Economics, University of Tokyo; MBA, Harvard Business School.

Minako Sato

Minako Sato

Senior Partner / Legal

Licensed attorney (Tokyo Bar Association). Specialist in international corporate law and M&A legal affairs with extensive experience in cross-border transactions. LLB, Chuo University; LLM, Georgetown University Law Center.

Y

Takuya Yamada

Partner / Strategy

Former partner at a major global consulting firm. Specialist in DX strategy and organisational transformation, with numerous digital reform engagements in manufacturing and distribution. BE, Kyoto University; MBA, Keio Business School.

Our History

1998
Founded in Marunouchi, TokyoSeiichiro Kobayashi founded the firm as an independent management consulting practice, initially focusing on business transformation for mid-sized manufacturers.
2005
Incorporated & Legal Division EstablishedIncorporated as LEXIS Partners K.K. Attorney Minako Sato joined the firm, establishing the corporate legal and M&A legal affairs division.
2012
Asia Expansion Practice LaunchedNetwork offices established in Singapore, Shanghai, and Ho Chi Minh City. Cross-border engagement track record grew rapidly.
2020
DX Practice EstablishedTakuya Yamada joined as Partner, launching the DX and digital strategy division. Integrated services combining management transformation and digitalisation commenced.
2026
350+ Clients Supported — Present Day42 consultants strong. Delivering fully integrated consulting across management, legal, finance, and DX — continuing to grow.

First Consultation Free

Let's start with a conversation.

Your first consultation is free of charge. Your challenge doesn't need to be fully defined.