Corporate Name Aoyama Art, Inc.
Established October 15, 2020
Founder & CEO Ryoma Katsura
Main Bank Mitsubishi UFJ Bank
Business Development and management of, a platform of architects in Japan is a platform of architects in Japan

Our services:

  • Full support in English to clients who are building houses in Japan
  • Connecting global clients who wishes to engage an architect in Japan for their projects
  • Connecting clients to necessary partners in related spaces, including architecture, construction or real estate
  • General consultation on house building process in Japan


Ryoma Katsura
Founder, CEO

After graduating from Keio University, Ryoma worked as an investment banker in Deutsche Bank and Goldman Sachs, advising clients on their M&A transactions and financings, both in the Tokyo office and the New York headquarters of Goldman Sachs.

He then joined Mercari Inc, Japan's largest startup developing a C-to-C marketplace, as a member of the CEO Office. After leading several projects including the management of group companies, he became the Head of New Business team / Product Owner of Cross Border business and managed the team as a product manager.

Ryoma's brother is an architect and his father works for a trading company in the architectural space. He was always a huge fan of architectures and founded in 2020 to create more opportunities for people around the world to connect to talented architects in Japan.

Shinya Kuno
Co-Founder, CTO

Graduated from the Graduate School of Informatics, Kyoto University.

After working at Nomura Research Institute, he worked at Donuts, Inc. as an engineering leader of cloud services for enterprises, such as "JOBCAN Attendance Management", "JOBCAN Workflow", and "JOBCAN Expense Reimbursement".

He then joined Michael, Inc. as one if the initial members as a VPoE, where he developed the product "CARTUNE", a social networking service for users who love customizing cars. During his tenure, Michael, Inc. was acquired by Mercari, Inc. for approximately JPY 1.5 billion.

He also served as a Technical Product Manager for new business development at Mercari, Inc.

Mai Fujiki
Architect, Professional Advisor

Designed residences, stores and offices working for an architect office in Japan. advisor since 2021. Graduated from Keio University, Shonan Fujisawa Campus, majoring in Architecture and Urban Development.

Megumi Katayama
Architect, Professional Advisor

Worked for an architect office in Japan for several years and mainly designed residences and stores. advisor since 2021.

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