About Us

Ci:z Investment LLP is a private investment firm located in Japan managing about $500M.
We invest in startups all around the world with an ambition to change the world we know today.
We also manage CP Ventures Management LLP, a Silicon Valley-based VC primarily investing in up and coming ventures in the valley.
We are always excited to see new investment opportunities!
If you are courageous enough to change the world with us, contact us through our email: contact@ciz.co.jp or our contact form.

Yoshinori Shirono M.D.

Chief Executive Officer

Dr. Yoshinori Shirono graduated from Keio University School of Medicine and is known to be the pioneer of anti-aging and laser-treatment in Japan. After establishing Ci:z medical, an anti-aging and laser-treatment clinic group, Dr. Shirono founded Ci:z Holdings Co., Ltd. (Dr. Ci:Labo). Originally traded on the Tokyo Stock Exchange, Ci:z Holdings Co., Ltd. was acquired by Johnson and Johnson at about 2.2 billion dollar valuation. Currently, he manages Ci:z Investment LLP, Ci:z Medical Group, and Ci:z International as a CEO and focuses his time on VC fund management, private equity investment, and real estate investment trust. He also takes on various executive-level roles at invested firms (e.g. CEO at Genesis Healthcare, Fukushima SiC-BNCT, etc.).

Takamitsu Shirono

Chief Fund Manager

Takamitsu is a current at Boston University studying computer science and mathematics. From an early age, Takamitsu displayed an interest in entrepreneurship and established his life goal of starting up his own business. Currently, Takamitsu primarily overlooks the venture capital division of Ci:z Investment LLP and assists Dr. Shirono with various investment decisions as a Chief Fund Manager.

Company Information

  • Company Name: Ci:z Investment L.L.P. (Affiliate of Ci:z International Inc.)
  • Head Office: AIOS Hiroo 904, 1-11-2, Hiroo, Shibuya-ku, Tokyo, Japan
  • Meeting Room: Giraffa 12th Floor, 1-6-10, Hiroo, Shibuya-ku, Tokyo, Japan
  • Chief Executive Officer: Yoshinori Shirono