CEO Message


“Creating new value through cutting-edge technology to create a sustainable planet and prosperous society”
AI, DX, Online, and Metaverse.
The ideal future envisioned by StuDeepl is to bring innovation to education and realize a new style of learning through our ability to develop systems using these cutting-edge technologies, which we have cultivated since our founding, and our innovative ability to create new businesses.
While the advent of the new coronavirus has accelerated the digitalization of education, it has also widened the educational gap based on income and environment.
StuDeepl’s vision is to “correct educational disparities caused by income and regional disparities” and “advocate a future style of learning,” and to achieve educational reform by aiming for a society where education is available anytime, anywhere, regardless of environment, as long as there is a desire to learn. We also reject the traditional passive style of learning and promote an active and innovative style of learning for the future.
We are also developing game-based learning applications that fuse education and games, as well as serious games that address social issues, such as “TADA-Yobi,” an online prep school featuring prominent instructors from the prep school industry, and ” Passport to Success,” the world’s first AI coaching service that uses AI to create and manage the progress of each student’s one-of-a-kind curriculum.
Furthermore, we will develop various businesses that will have a significant impact on society, such as the operation of tutoring schools that embody a new type of active learning in which students teach each other in a metaverse (virtual space) and the operation of online games.
We promise to contribute to the creation of a sustainable earth and an affluent society by continuing to propose a new style of learning that combines cutting-edge technology and education.
President and Director Representative
Masato Yoshinaga
Company Outline
- Company Name
- StuDeepl Inc.
- Address
- 8th Floor Lattice Aoyama Square 1-2-6 Minami Aoyama Minato-ku, Tokyo (107-0062)
- Founded
- January 6th, 2015
- Capital
- 10,000,000 Japanese Yen (as of November 8, 2022)
- Number of Employees
- 99 (as of March 1, 2022) (including part-time workers and “Tadayobi” instructors)
- Board Members
-
- President and Director Representative
- Masato Yoshinaga
- Director
- Tadashi Tsukao
- Director
- Seigo Ozaki
- Director
- Marc Cellucci
- Auditor
- Ken Okada
- Auditor
- Toshiro Onta
- Auditor
- Seiji Urita
Board Members
-
President and Director
RepresentativeMasato Yoshinaga -
DirectorTadashi Tsukao
-
DirectorSeigo Ozaki
-
DirectorMarc Cellucci
-
AuditorKen Okada
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AuditorToshiro Onta
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AuditorSeiji Urita

President and Director Representative
Masato Yoshinaga
Born in 1964.
Joined Sanwa Bank, Limited (currently The Bank of Tokyo-Mitsubishi UFJ) in 1988.
After leaving the Bank of Tokyo-Mitsubishi UFJ, Ltd. in 2005, Yoshinaga started a real estate fund company and then ran a financial consulting company and a real estate company.
Appointed as President and Representative Director of the company in 2015 (current position).
Joined Sanwa Bank, Limited (currently The Bank of Tokyo-Mitsubishi UFJ) in 1988.
After leaving the Bank of Tokyo-Mitsubishi UFJ, Ltd. in 2005, Yoshinaga started a real estate fund company and then ran a financial consulting company and a real estate company.
Appointed as President and Representative Director of the company in 2015 (current position).

Director
Tadashi Tsukao
Born in 1962.
Joined Arthur Andersen & Company in 1986.
After leaving Andersen Consulting in 1989, he served as Vice President at Bankers Trust and Company, Lehman Brothers Securities, Credit Suisse Financial Products, and Deutsche Securities.
Appointed as Executive Vice President of the Company in 2015.
Appointed as the Director of the company in 2020 (current position).
Joined Arthur Andersen & Company in 1986.
After leaving Andersen Consulting in 1989, he served as Vice President at Bankers Trust and Company, Lehman Brothers Securities, Credit Suisse Financial Products, and Deutsche Securities.
Appointed as Executive Vice President of the Company in 2015.
Appointed as the Director of the company in 2020 (current position).

Director
Seigo Ozaki
Born in 1975.
1997-2015 Worked as a lecturer at preparatory schools for university entrance exams at Waseda-Juku, Zkai, Kawai-juku, etc. At the same time, Ozaki taught remedial education courses at various universities.
2016-2020 Ozaki has developed and lectured on courses for certified real estate agents, administrative scriveners, and financial planning skills tests at legal qualification prep schools.
In 2021, was appointed as the General Manager of the Company’s Edtech Division.
In 2021,Ozaki was appointed as the Director of the Company (current position).
1997-2015 Worked as a lecturer at preparatory schools for university entrance exams at Waseda-Juku, Zkai, Kawai-juku, etc. At the same time, Ozaki taught remedial education courses at various universities.
2016-2020 Ozaki has developed and lectured on courses for certified real estate agents, administrative scriveners, and financial planning skills tests at legal qualification prep schools.
In 2021, was appointed as the General Manager of the Company’s Edtech Division.
In 2021,Ozaki was appointed as the Director of the Company (current position).

Director
Marc Cellucci
Born in 1976.
1999 Joined SEGA CORPORATION
2005 Joined KOEI Co.Ltd
2006 Joined SEGA CORPORATION
2008 Established Mission One LLC
2022 Appointed as Director of the Company (current position)
1999 Joined SEGA CORPORATION
2005 Joined KOEI Co.Ltd
2006 Joined SEGA CORPORATION
2008 Established Mission One LLC
2022 Appointed as Director of the Company (current position)

Auditor
Ken Okada
Born in 1956.
1979 Joined Sanyo Securities Co.
1998 Joined Kokaku Securities Co., Ltd. (currently Mizuho Securities Co., Ltd.)
2012 Retired as an executive officer of Mizuho Investors Securities Co., Ltd. (currently Mizuho Securities Co., Ltd.).
2013 Okada became a full-time corporate auditor of Mizuho Securities Business Service Co., Ltd.
2018 Okada became a full-time corporate auditor of Twin Planet Co., Ltd.
Appointed as a full-time corporate auditor of the company in 2020 (current position)
1979 Joined Sanyo Securities Co.
1998 Joined Kokaku Securities Co., Ltd. (currently Mizuho Securities Co., Ltd.)
2012 Retired as an executive officer of Mizuho Investors Securities Co., Ltd. (currently Mizuho Securities Co., Ltd.).
2013 Okada became a full-time corporate auditor of Mizuho Securities Business Service Co., Ltd.
2018 Okada became a full-time corporate auditor of Twin Planet Co., Ltd.
Appointed as a full-time corporate auditor of the company in 2020 (current position)

Auditor
Toshiro Onta
Born in 1962.
In 1988, he joined Citibank, N.A.
In 2012, he was seconded to Citi Cards Japan, Inc.
In 2021, he left SUMITOMO MITSUI TRUST CLUB CO., LTD.
In 2021, he became an Audit & Supervisory Board Member of the company (current position)
In 1988, he joined Citibank, N.A.
In 2012, he was seconded to Citi Cards Japan, Inc.
In 2021, he left SUMITOMO MITSUI TRUST CLUB CO., LTD.
In 2021, he became an Audit & Supervisory Board Member of the company (current position)

Auditor
Seiji Urita
Born in 1950.
1974 Joined Sanwa Bank (currently Mitsubishi UFJ Bank)
2002 Director of UFJ Partners Investment Trust (now Mitsubishi UFJ International Investment Trust)
2004 Senior Managing Director, Kokusai Kogyo
2006 Advisor of Promise
2007 Representative Director of Kaichi
2008 Representative Director of DO Financial Service
2011 Standing Corporate Auditor, Misawa Homes
2016 Standing Corporate Auditor of Works Applications, Inc.
2020 Resigned due to expiration of term of office
2022 Appointed as Auditor of the Company (current position)
1974 Joined Sanwa Bank (currently Mitsubishi UFJ Bank)
2002 Director of UFJ Partners Investment Trust (now Mitsubishi UFJ International Investment Trust)
2004 Senior Managing Director, Kokusai Kogyo
2006 Advisor of Promise
2007 Representative Director of Kaichi
2008 Representative Director of DO Financial Service
2011 Standing Corporate Auditor, Misawa Homes
2016 Standing Corporate Auditor of Works Applications, Inc.
2020 Resigned due to expiration of term of office
2022 Appointed as Auditor of the Company (current position)
CSR

Supporting people who are
“Always Evolving.”
We are convinced that our company’s management philosophy of “always evolving” can give people inspiration and dreams.
Sports have a great power to convey the wonder of excitement and realizing our dreams.
We will continue to contribute to the strengthening and development of the world of sports by supporting athletes who are “always evolving” to achieve their goals and dreams.
Sports have a great power to convey the wonder of excitement and realizing our dreams.
We will continue to contribute to the strengthening and development of the world of sports by supporting athletes who are “always evolving” to achieve their goals and dreams.
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SwimmingMasayuki Umemoto
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TriathlonHiroshi KotakeKeiichi KikutaAkiko Kikuchi
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SwimmingSeiya YoshinagaTakako FukushimaAkiko KikuchiTaishu Yoshinaga

Swimming
Masayuki Umemoto
Born in 1994.
Graduated from Keio University in 2017.
One of Japan’s top swimmers. Butterfly is his best style.
2011 Inter High 100m 2nd place, followed by 2013 JAPAN OPEN 100m champion, 2015 Universiade 200m 3rd place, Japan Student Championships 100m champion.
2017 Marked 1:55.45 in the 200m butterfly at the Japan Championships Swimming Competition, surpassing the Japan Swimming Federation International B.
2017 Selected to represent Japan in the FINA World Cup Europe Cluster and placed 3rd in the 200m butterfly in Germany and the Netherlands.
Currently striving for the Tokyo Olympics in 2020.
Graduated from Keio University in 2017.
One of Japan’s top swimmers. Butterfly is his best style.
2011 Inter High 100m 2nd place, followed by 2013 JAPAN OPEN 100m champion, 2015 Universiade 200m 3rd place, Japan Student Championships 100m champion.
2017 Marked 1:55.45 in the 200m butterfly at the Japan Championships Swimming Competition, surpassing the Japan Swimming Federation International B.
2017 Selected to represent Japan in the FINA World Cup Europe Cluster and placed 3rd in the 200m butterfly in Germany and the Netherlands.
Currently striving for the Tokyo Olympics in 2020.

Triathlon
Kotake, Kikuta, Kikuchi
Tournament Name: 2017 National Showa Memorial Park Triathlon Team Ken’s Cup
Date: Saturday, September 9, 2015
Relay members: Hiroshi Kotake (bike), Keiichi Kikuta (run), Akiko Kikuchi (swim)
Category: Triathlon Relay (Swim 0.75km, Bike 20km, Run 5km)
Result: 1 hour 13 minutes 59 seconds
Overall ranking: 13th (out of 59 groups), 6th (out of 20 groups) in the mixed gender category
Date: Saturday, September 9, 2015
Relay members: Hiroshi Kotake (bike), Keiichi Kikuta (run), Akiko Kikuchi (swim)
Category: Triathlon Relay (Swim 0.75km, Bike 20km, Run 5km)
Result: 1 hour 13 minutes 59 seconds
Overall ranking: 13th (out of 59 groups), 6th (out of 20 groups) in the mixed gender category

Swimming
Yoshinaga(Seiya), Fukushima,
Kikuchi, Keicho(Taishu)
Tournament Name: The 1st Asian Masters Swimming Championships
Date: Thursday, July 12, 2008 – Monday, July 16, 2008
Winner of the Mixed Free Relay (Seiya Yoshinaga, Takako Fukushima, Akiko Kikuchi, Taishu Yoshinaga)
3rd place in Mixed Medley Relay (Same as above)
Men’s 50m Freestyle 2nd place (Taishu Yoshinaga)
Date: Thursday, July 12, 2008 – Monday, July 16, 2008
Winner of the Mixed Free Relay (Seiya Yoshinaga, Takako Fukushima, Akiko Kikuchi, Taishu Yoshinaga)
3rd place in Mixed Medley Relay (Same as above)
Men’s 50m Freestyle 2nd place (Taishu Yoshinaga)
Company History
- 2022
-
- June
- Company name changed to StuDeepl Inc.
- April
- Casual game “NMB48 no Casual Party” renewal
- YouTube channel “Minna-no-Tada-yobi” released
- 2021
-
- December
- Card game “BOYMEN BABANUKI” released
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- November
- Card game “AAA Daifugo” released
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- October
- YouTube channel “Tada-yobi Culture” released
- “Tada-yobi series” published
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- September
- Card game “HiGH&LOW THE CARD TEPPEN BATTLE” released
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- August
- YouTube channel “Tada-yobi Business” released
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- April
- Online prep school “Tada-yobi Premium” released
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- January
- Card game “FAKEMOTION King of DOBON” released
- 2020
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- December
- Card game “Jyashin-chan Dropkick Daifugo desu no!” released
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- August
- Card game “AKB48 no dobon! Hitorijime!” released
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- July
- 3D action shooting game “TITAN WARS” released
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- April
- Online prep school “Tada-yobi” released
- 2019
-
- August
- Card game “SKE48 no daifugo wa owaranai!” released
- 2018
-
- November
- Mahjong game “NMB48 no Mahjong Teppen Tottande!” released
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- August
- Action shooting “Tank de Hoi Hoi” released
- 2017
-
- December
- Card game “STU48 7 Narabe” released
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- December
- Shooting game “Quantum Drive” released
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- June
- Mahjong game “Mahjong Top Me Tottande!” released
- 2016
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- May
- 3D run game “Red Queen” released
- 2015
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- January
- Founded Red Queen Inc.