About us


To be the world's most vibrant
learning tech company

Change the rules of learning. Vibrant in the world. Grounded on the values we believe, we are a learning tech company - creating technology for all learners.


Cultivating Personal Leadership

Build a society that cultivates personal leadership. That's our mission. Life based on commonality was a thing of the past. We now live in an age where people are able to work and have the lifestyle built around personal values. On the other hand, many education systems are not able to provide guidance based on personal strengths and qualities. That is why we create products that are based around personal leadership and self-directedness. 「Ability to raise and solve own issues」「Society made of people who can light their own path」Our beliefs are embedded here at our company「CLEAR」

CLEAR Values

Delighted Customers

We value both our users and customers who make our products possible. We to constantly strive to deliver what's best for our valued users and customers.


To realize our vision, we are not satisfied with small results and keep challenging ourselves to set higher goals. We fight the status quo and whenever unsure we pick the higher goals.

Team collaboration

We achieve higher goals as a team. We believe that teams produce greater results than individuals. Therefore we value differences in our team, treat each other with respect and put our emphasis on effective communication.


We set our goals and put emphasis on delivering results for our users and customers while measuring our progress towards realizing our visions and missions.


“Wakuwaku - the state of feeling excited.”
We believe that feeling excited is important to fulfill our mission and vision. Finding joy in what we do is essential to continually produce high-quality results. Furthermore, we value providing services that excite our users and customers.

Company Information

  • Company Name CLEAR, Inc.
  • Head Office 1-8-35, Konan, Minatoku, Tokyo, Japan, 108-8710
  • Date of Establishment October 5, 2010
  • Representative Goichiro Arai, CEO
  • Representative Yoshiki Shiraishi, COO/CFO
  • Board Director Yusuke Kurishima
  • Auditor Jun Harada
  • Business Overview - Note-sharing platform - Clear
    - Student enrolment service - MEETS
  • Enquiry contact @ clearnotebooks.com

Management Team

Go joined NTT in 1997 and acquired his MBA in 2003 after which he worked as a consultant at a U.S. affiliated consulting firm for 3 years. Later, he was responsible as a supervisor at Hoshino Ski Resort where he managed business operations. After meeting an unfortunate accident while skiing and escaped life-and-death situation, he was determined to realize his dream to open up more possibilities in the world through building innovative education services. Founded Arcterus Co., Ltd. in October 2010 together with Yoshiki Shiraishi after about 3 years of preparation.

Goichiro Arai


Yoshiki joined Fujitsu in 1997 and then entered Keio Business School in 2001. He was involved in a technology venture capital establishment right after graduation and invested in total of 8 companies, including Acucela Inc. In 2007, he assumed the position of CFO at one of the companies he invested in. After selling business to CellMid, he took part as a board member in multiple venture companies. Founded Arcterus Co., Ltd. in October 2010 together with Goichiro Arai.

Yoshiki Shiraishi


After graduating from Waseda Business School, Yusuke acted as a trader and fund manager at a major asset management company. He then assumed the role of CEO at Viling Venture Partners which specializes in seed investments in the field of education. He is currently active as a board director as well as co-founder of ProtoStar Inc. since December 2016. Yusuke is continuously involved in building entrepreneur and creator community in various regions in Japan like Tokyo, Kyoto, Osaka, Fukuoka, etc while providing entrepreneurship support in the education field. Board Director of Arcterus Co., Ltd. since June 2015.

Yusuke Kurishima

Board Director

After graduating from faculty of economics at Yokohama National University, Jun started his career by providing support for IPOs as an auditor. He was then actively engaged in M&A advisory business at Nomura Securities Co. after which he took up responsibility in business plan development at Yahoo! JAPAN. He was soon in charge of M&A, business investments as well as business turnaround project at Livedoor Co., Ltd. He established AOBA Accountants & Advisors in 2014 to provide IPO and M&A services where he is currently active as a director. Auditor of Arcterus Co. Ltd. since June 2015.

Jun Harada