![Koji Hayami](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Koji Hayami
President at
SE HOLDINGS AND INCUBATIONS CO., LTD.
Net worth: 9 M $ as of 2026-06-29
Profile
Koji Hayami is President & Representative Director at SE Holdings & Incubations Co., Ltd. since 1996.
Mr. Hayami is Director at Runsecond Co., Ltd. since 2006.
Mr. Hayami is Director at 800 Teleservices Holding Ltd. since 2002.
Mr. Hayami is President & Representative Director at SE Investment KK since 2011.
Former positions include President & Representative Director at Se Mobile & Online Co., Ltd., Outside Director at R-Learning Co., Ltd., and Independent Outside Director at GaiaX Co., Ltd. Education includes undergraduate studies at Sophia University, Faculty of Science & Technology.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-09-29 | 2,789,633 ( 17.13% ) | 9 M $ | 2026-06-29 |
Koji Hayami active positions
| Companies | Position | Start |
|---|---|---|
| SE HOLDINGS AND INCUBATIONS CO., LTD. | President | 1996-03-31 |
800 Teleservices Holding Ltd. | Director/Board Member | 2002-09-30 |
SE Investment KK | President | 2011-03-31 |
Runsecond Co., Ltd.
 Runsecond Co., Ltd. Information Technology ServicesTechnology Services Operates a chain of internet cafes | Director/Board Member | 2006-01-31 |
Former positions of Koji Hayami
| Companies | Position | End |
|---|---|---|
Se Mobile & Online Co., Ltd.
 Se Mobile & Online Co., Ltd. Founded in 2006, Se Mobile & Online Co., Ltd. is a Japanese IT company that provides comprehensive business solutions primarily to small and medium-sized enterprises. Se Mobile & Online Co. is based in Shinjuku-Ku, Japan. The company offers services such as system development, marketing support, entertainment, business process outsourcing (BPO) support, video marketing, and web services. Its expertise includes large-scale business system development and operation, web and smartphone app development, social and console game development and management, IoT, infrastructure setup, and security. Notable projects include original game titles and platforms like "Novel Up+," a gamified novel posting and reading service, and "Smarriage," an online marriage consultation platform. The company also delivers tailored BPO solutions covering HR, payroll, accounting, legal compliance, customer support, logistics, and internal system management. Video marketing services are provided from production to distribution and advertising across platforms such as YouTube, social networks, Google, and TikTok. | President | - |
R-Learning Co., Ltd.
 R-Learning Co., Ltd. Information Technology ServicesTechnology Services Develops software systems and provides consultation and training services | Director/Board Member | - |
| GAIAX CO.LTD. | Director/Board Member | - |
Training of Koji Hayami
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
14
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
SE Holdings & Incubations Co., Ltd.
 SE Holdings & Incubations Co., Ltd. Publishing: Books/MagazinesConsumer Services Operates as a holding company whose subsidiaries publishes and sells computer related books & provides software network, corporate, education and investment management services | Consumer Services |
Runsecond Co., Ltd.
Runsecond Co., Ltd. Information Technology ServicesTechnology Services Operates a chain of internet cafes | Technology Services |
GaiaX Co., Ltd.
 GaiaX Co., Ltd. Internet Software/ServicesTechnology Services Provides social media services | Technology Services |
800 Teleservices Holding Ltd. | |
Se Mobile & Online Co., Ltd.
Se Mobile & Online Co., Ltd. Founded in 2006, Se Mobile & Online Co., Ltd. is a Japanese IT company that provides comprehensive business solutions primarily to small and medium-sized enterprises. Se Mobile & Online Co. is based in Shinjuku-Ku, Japan. The company offers services such as system development, marketing support, entertainment, business process outsourcing (BPO) support, video marketing, and web services. Its expertise includes large-scale business system development and operation, web and smartphone app development, social and console game development and management, IoT, infrastructure setup, and security. Notable projects include original game titles and platforms like "Novel Up+," a gamified novel posting and reading service, and "Smarriage," an online marriage consultation platform. The company also delivers tailored BPO solutions covering HR, payroll, accounting, legal compliance, customer support, logistics, and internal system management. Video marketing services are provided from production to distribution and advertising across platforms such as YouTube, social networks, Google, and TikTok. | |
R-Learning Co., Ltd.
R-Learning Co., Ltd. Information Technology ServicesTechnology Services Develops software systems and provides consultation and training services | Technology Services |
SE Investment KK | |
Sophia University, Faculty of Science & Technology
 Sophia University, Faculty of Science & Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
- Stock Market
- Insiders
- Koji Hayami
