Who We Are

opt sea
OPT SEA is designed to embark on new business expansion and investment activities to contribute to the growth of the ASEAN internet business by leveraging the OPT group’s asset and experience.


OPT SEA provides one stop marketing solution specializing for tourists visiting Japan.
Marketing Service
Available Countries:
China, Korea, Taiwan, Hong Kong, Vietnam, Thailand, Malaysia, Singapore, Indonesia, Philippines

Investment & Incubation

OPT SEA invests in the companies in our target area of Internet-related business from the seed to early stages.
Investment Domain
Marketing Solution
E-Commerce (Market Place)
Lead Generation
Sharing Economy
Click here to see Our Portfolio Companies


Company Profile

Company Name:
OPT SEA Pte.,Ltd.
OPT Holding Inc.
Internet Services and Marketing (Inbound Marketing of tourists visiting Japan)
Investment and Incubation
Established in:
June 2014
Board Member:
CEO: Ryukichi Iwakiri, COO: Norifumi Nakajima, CIO: Kim Soonhee,
Director: Kosuke Yoshida
30 Cecil Street, #19-08 Prudential Tower, Singapore 049712

Board member

Ryukichi Iwakiri

Ryukichi Iwakiri

CEO / Director

Ryukichi Iwakiri is Director and Executive Officer. He joined OPT Inc in 2003 as sales representative and led the team and earned MVP of the year in 2004. Then he became Manager of content planning department where he developed new services and its business alliance. In 2007, after serving as Manager of SEM, he was appointed as CEO of Crossfinity Inc, a subsidiary of OPT, and led the company to achieve more than tenfold increase in sales. In 2010, he returned to OPT (currently known as OPT Holding Inc) as Executive Vice President for new business development and management of subsidiaries. In 2011, he became appointed as director, overseeing entire advertising business, and from 2014 he has been responsible for overseas business while based in Singapore.

He is concurrently CEO of OPT SEA Pte Ltd, and Director of eMFORCE Inc, Crossfinity Digital Asia Pte Ltd, and OPTOK Co Ltd.

CEO’s message
Norifumi Nakajima

Norifumi Nakajima

COO / Director

In 2005, Norifumi Nakajima founded Clisk Corporation after working at a digital marketing firm in Japan. He has extensively developed businesses of digital marketing, media, web production as well as business consulting and effective web / advertising operation. In 2010, he started up Thailand office, then Singapore office in 2012. In October 2015, He joined Optok Co.,Ltd, a subsidiary in Thailand of OPT Holding group in Japan, as COO and he also became appointed as COO of OPT SEA Pte.,Ltd in April 2016. He has concurrently been serving as a outside director of several companies providing oversea business development, system development company Alleyoop and IT Training / global human resource consulting company, Global Knowledge Network Japan Ltd.”

Ryukichi Iwakiri

Soonhee Kim

CIO / Director

Over the last 15 years, in addition to numerous investment activities, Soonhee Kim has experience with multiple layers of overseas business development and incubation projects. She started her career with a Korean off-shore trading company developing hub functionality in Japan and increasing operations between NE Asia and SE Asia. Prior to join the OPT group, she worked as the project manager for a venture incubation consulting firm to operate various localization and incubation projects throughout NE Asia and the US for the entertainment media contents and restaurant industry. Since joining OPT in 2005, she has been responsible for overseas business development, M&A and investment projects in the US and Korean market. After moving her base from Tokyo to Thailand in 2012, she has been in charge of the SE Asia market and became appointed COO of OPT SEA in 2014, and CIO in 2016.

She prioritizes peace, genuineness and dignity in her life. Her favorite word and expression are “doable” and “beautifully different”. She speaks Korean, Japanese and English fluently. Lately, she is enjoying learning Mandarin and Chess from her daughters.

Kosuke Yoshida

Kosuke Yoshida


Kosuke Yoshida joined OPT in 2004. He was chosen for the best employee of the year, in which Opt went public in JASDAQ. During a few years of his tenure as Manager of Sales at Media Sales department, he lead his team to achieve threefold increase in sales year on year. He became appointed as Executive Vice President of Marketing department in 2010. In 2014, as he became appointed as Executive Vice President of China and Korea business at OPT Holding, he has been also serving as Chairman of OPT Hong Kong, OPT Shenzhen (China) and Director of eMFORCE (Korea). He has been also a visiting professor at Digital Hollywood University and pursuits his passion for educational activity on e-Marketing since 2010.

He earned a degree in Chinese from Takushoku University and also studied at North China University of Technology in Beijing, as an exchange student. One of his lifework is continuously devoting himself to work as a bridge between Japan and other Asian countries.

Affiliated Companies

Cornflix Pte.,Ltd.
Cornflix Pte.,Ltd. (Singapore)

Operating a video streaming platform, Cornflix.TV

Medical Departures Inc.
Medical Departures Inc. (Singapore, Thailand etc.)

Operating a medical service marketplace, Medicaldepartures.com

Event Pop Holdings Pte.,Ltd.
Event Pop Holdings Pte.,Ltd. (Singapore, Thailand)

Operating an event marketing and ticketing platform, Eventpop.me

Catapult Ventures Pte.,Ltd.
Catapult Ventures Pte.,Ltd. (Singapore, Indonesia)

Operating the personal finance comparison site, MoneySmart.sg

90 Seconds Ltd.
90 Seconds Ltd. (New Zealand, Singapore, etc. )

Operating a Cloud Video Production Service, 90 Seconds.tv.

Global Trade Asia Pte., Ltd. (Indonesia)
Global Trade Asia Pte., Ltd. (Indonesia)

Operating small and medium size enterprise trading portal site, Indotrading.com

WearYouWant Pte., Ltd.
WearYouWant Pte., Ltd. (Singapore, Thailand)

Operating a Fashion E-Commerce website, WearYouWant.com

Lead Commerce Pte., Ltd.
Lead Commerce Pte., Ltd. (Singapore, Thailand)

Operating lead generation media and E-Commerce websites,

 Comparison.asia,   Happywedding.life

OptOk.Co.Ltd. (Thailand) Whollyowned subsidiary

Vertical Search Engine, Website Marketing, Optimization Tools,
and Ad Serving technology

adok - Mobile Focused Video Ad Platform

Crossfinity Malaysia Sdn. Bhd.
Crossfinity Malaysia Sdn. Bhd. (Malaysia)

e-Marketing Agency (SEO)

Crossfinity Digital Asia Pte., Ltd.
Crossfinity Digital Asia Pte., Ltd. (Singapore, Malaysia)

Media Rep. and e-Marketing Agency

Contact Us

OPT SEA Pte.,Ltd.
30 Cecil Street, #19-08,
Prudential Tower, Singapore 049712