About us

Leverage OIGP is managed by senior level Japanese professionals and recognized executive coaching professionals. In addition to our consultants being cited in internationally known publications such as the Wall Street Journal’s FINS, half of our senior team members have MBAs from the U.S. and have worked at the executive level at the following well-known international companies and firms.
Thermo Fisher Japan K.K.
Procter & Gamble
Blockbuster Japan
Tosoh Corporation
Mitsubishi Chemical Medience
Ingersoll Rand
Ford Motor Company
Sumida Corporation
Rockwell International
Celerity, Inc.
Thomas & Betts
Beckman Coulter K.K.
Lucent Technologies
Baxter Limited
Zurich Insurance Company

Our skills

Our team has a variety of industry and functional experience, mostly gained in an international context.
  • P&L Management of International Business47%
  • Bilingual100%
  • More than 15 years industry-side experience83%
  • Management Assessment Experience83%
  • Restructuring Experience71%
  • Advanced Degrees71%

Our Leadership Team

<H6>Yukio Shumi

Yukio Shumi

Managing Partner: Bio

+81 (0)3-4550-6534

<H6>Kaz Araishi

Kaz Araishi

Senior Partner: Bio

+81 (0)3-4550-6534

<H6>Hitoshi Saito

Hitoshi Saito

Senior Partner: Bio

+81 (0)3-4550-6534

<H6>Akira Suzuki

Akira Suzuki

Senior Partner: Bio

+81 (0)3-4550-6534

<H6>Ted Nojima

Ted Nojima

Senior Partner: Bio

+81 (0)3-4550-6534

<H6>Yuko Asaoka

Yuko Asaoka

Co-Founder & Partner: Bio

+81 (0)3-4550-6534

<H6>Bill Johns

Bill Johns

Partner: Bio

+81 (0)3-4550-6534

<H6>Sam Ohkubo

Sam Ohkubo

Partner: Bio

+81 (0)3-4550-6534

Our History

  • 2018Joined OI Global Partners
    We became the Japan-based partner of OI Global Partners, a firm 1,600 consultants strong with 225 offices in 28 countries. Our customers now have a broad suite of talent management services and a deep base of experienced consultants worldwide.
  • 2014Move to Meguro
    In March of 2014, we moved to our current location in the MG Meguro Building, which is 1 minute from JR Meguro Station.
  • 2012Name Change
    We changed our name to Leverage, in order to create and build better brand awareness.
  • 2011BPI Group
    We partnered with the BPI Group, a global HR Consulting and Talent Management Firm based in France.
  • 2010Created J.W. Consulting
    We created a partnership to build better relationships with our clients.
  • 2006Start of business
    Partners started working together as independent contractors in the executive search, HR consulting, and business advisory industries.
  • ...


Taken from our recommendations and endorsements on Linkedin
  • CRA
  • Head of Compliance
  • William has guided me to find my current job with his deep and detailed knowledge and he fully understood my future goals. Without him and his partners at Leverage assistance, I might not have received so many job offers.
  • My consultant at Leverage was very active and good at communication between his client and candidate. In my case, it took only a few weeks from the very first meeting with him to the final meeting with the Board members at the current employer.
    Head of Compliance
    UK Based Asset Management Firm
Leverage OIGP is the local Japanese office of OI Global Partners.

OI Global Partners is the largest independently owned and operated talent management and leadership solutions consulting firm in the world. We have 225 offices in 28 countries and some 1600 associates. Our core strengths are leadership assessment, executive coaching, career transition, and workforce solutions. OI Partners is a privately held corporation that is structured similar to many other global professional service firms, such as major accounting and legal companies. It is governed by a Board of Directors, Chairperson, Executive Committee, and a variety of Operating Committees. These governing bodies establish strict guidelines and provide rigid oversight to ensure the highest levels of consistency and quality throughout the world. Regional partners own stock of the company.


Our Firm in Japan

We have 3 main business divisions in Japan. Please find our corporate charter below.
Business Name: Leverage LLP
Main Offices (Japan) Meguro Office

MG Meguro Ekimae Building
2-15-19 Kamiosaki, Shinagawa-ku
Tokyo, Japan 141-0021

Nagatacho Office

Aios Nagatacho Building
Nagatacho 2-17-17, Chiyoda-ku
Tokyo, Japan 100-0014
Main Telephone Number: +81 (0)3-4550-6534
Registration Number: 0111-05-004971
Bank: MUFJ Nihonbashi
Outplacement Division: Leverage OIGP
Address: 2-15-19 Kamiosaki, Shinagawa-ku
Services: Outplacement
Global Partner: OI Global Partners
Talent Management Division: Leverage OI
Address: 2-15-19 Kamiosaki, Shinagawa-ku
Services: Talent Management, HR Consulting, Management Assessment, Coaching
Global Partner: OI Global Partners
Executive Search Division: Leverage
Address: 2-15-19 Kamiosaki, Shinagawa-ku
Business Leader: William S. Johns III
Services: Executive Search, Recruitment, Board-Level Services
MHLW Recruitment License: 13-ユ-306367
Memberships: American Chamber of Commerce in Japan