Our Service

Deep Dive Due Diligence

Deep Dive Due Diligence

We provide deep insights by means of combining our quantitative analysis and qualitative analysis, where the former utilizes calculation of target’s true corporate values through in-depth financial analysis and inspection on fraudulent accounting and the latter facilitates full comprehension of its business condition through on-site research and interviews with parties concerned.

  • Business Due Diligence (Business model analysis and domestic/international market size evaluation)
  • Corporate Value Calculation (Forensic accounting and DCF valuation)
  • Personal Background Investigation (Reputation surveys and risk assessment)

Our Customers

Institutional investors from 4 international cities (New York, London, Hong Kong, and Singapore) and Japanese companies listed on the TSE First Section, etc.

Our Members

Shota Wada

Shota WadaCOO

Graduated from Faculty of Economics, Kyoto University. He worked at McKinsey & Company’s Tokyo and Jakarta offices before he co-founded QuestHub.

Comprehensive Corporate Communication

Comprehensive Corporate Communication

We aim to offer opportunities to have a constructive dialogue with public opinion and markets by means of providing all-inclusive supports on communication for all stakeholders including but not limited to domestic and international financial media, national newspapers, institutional and individual investors, securities companies and regulators.

  • Public Relations (PR material preparation and presentation for domestic and international financial magazines and national newspapers)
  • Investor/Shareholder Relations (IR/SR material preparation and presentation for domestic and international institutional investors and retail investors)
  • Web Marketing (Website creation and SEO)

Media Appearances

Nihon Keizai Shimbun (Nikkei), Weekly Toyo Keizai, Diamond Weekly, etc.

Our Members

Shoya Okuma

Shoya OkumaCEO

Graduated from Faculty of Economics, University of Tokyo. He worked at a Singapore-based hedge fund firm focused on value investing mainly in the Japanese stock market before he co-founded QuestHub. He wrote and published several books while he was enrolled in University of Tokyo (“Todai-Shiki: An Awesome Guide [How to Read Financial Statements]”, Fusosha Publishing Inc, and other publications).

Takumi Watanabe

Takumi WatanabeExecutive Officer

Graduated from Faculty of Economics, Kyoto University. He Joined QuestHub after working at Toyo Keizai Inc. At Toyo Keizai, he wrote articles for various media including but not limited to Japan Company Handbook (Kaisha Shikiho) and Weekly Toyo Keizai as a reporter assigned to the industries of precision equipment, electronic component, and game manufacturers.

Multinational Media Marketing

Multinational Media Marketing

We seek to develop a niche and enthusiastic fanbase in respective foreign countries through introducing and facilitating influencers of China, North America, Europe and South-East Asia in addition to local and regional specialties.

  • Influencer Marketing (Inbound/outbound campaigns)
  • Management of Social Networking Service Accounts and Follower-base Campaigns (Instagram, YouTube, and Weibo)
  • Video Creation for Online Use


Government agencies, ordinance-designated cities, etc.
A capital alliance with Yoshidamasaki Inc., one of the largest Japanese firms with bilingual influencers.