ABOUT US
- BEYOND EMOTION
- Making search technology exciting.
MARS FLAG Co., Ltd. provides web services based on search technology to domestic and overseas companies and government agencies. Since its establishment in 1998, MARS FLAG Co., Ltd. has always been at the vanguard of the industry with search technology, such as the world's first search engine with page capture and services utilizing our patented technology. Currently, as Japan's first search platformer with the largest domestic market share, we provide web services such as the MARS FINDER website search platform, the MARS SCREEN product search platform, and the MARS EXPLORER search box recommendation display tool to domestic and overseas companies and government agencies.
COMPANY PROFILE
- Company Name
- MARS FLAG Corporation
- Founded
- October 1998
- Capital
- 90,000,000 yen
- Business contents
- Provision of Web services based on search technology
- Board of Directors
-
Yujiro Takei – CEO
Yuichi Saegusa – Director
Aya Shirota – Director
Takaaki Nagayama – Director
- Shareholders
- Management Team, Employee Shareholders, and others
- Address
- Tokyo Square Garden 14F, 3-1-1 Kyobashi, Chuo-ku, Tokyo, Japan
Osaka : Namba SkyO 27F, 5-1-60 Namba, Chuo-ku, Osaka, Japan
Singapore : 20 Collyer Quay #23-01 Singapore.
- URL
- https://www.marsflag.com/en/
- info@marsflag.com
HISTORY
- 1998
-
- October 1998
B-Boyd Ltd. established as a search engine research company in Shinjuku, Tokyo
- October 1998
- 2004 - 2005
-
- August 2004
Capital participation by Proto Corporation
- August 2004
Reorganization and renaming to become MARS FLAG Corporation
- March 2005
Mieru! search engine "MARS FLAG" β version service launches
- August 2005
Release of "Tsunaken"
- September 2005
Release of "Buroken"
- October 2005
Capital participation by venture capital with SoftBank Investment as a lead
- August 2004
- 2006 - 2009
-
- May 2006
"MARS FLAG" β version terminated Full version service launches
- May 2006
Blog search engine OEM supply commences
- August 2006
Mieru! Website Search "MARS FINDER" service launches
- September 2006
Mobile search engine OEM supply commences
- November 2008
Site problematic point visualizer "MARS SITE PERFORMANCE" service launches
- January 2009
Dead link search "MARS CLEANER" service launches
- May 2006
- 2011 - 2013
-
- March 2011
Completion of MBO (management buyout) and switch to an independent enterprise
- May 2012
Reform of company logo (MARS FLAG) and service logos (MARS FINDER, etc.)
- May 2012
Relocation due to business expansion
- October 2012
Website Quality Management Service "MARS QUALITY" service launches
- October 2013
New "Visible" search function on Website Search "MARS FINDER" is released
- October 2013
Singapore Office opens
- March 2011
- 2015 - 2019
-
- March 2015
Sponsorship contract agreed with para triathlete Yukako Hata
- March 2016
Search Box Recommendations "MARS EXPLORER" service launches
- January 2019
Headquarters relocated to Kyobashi(Tokyo)
- August 2019
Osaka's office opens.
- March 2015
- 2020 - 2023
-
- June 2020
Reform of company logo (MARS FLAG) and service logos (MARS FINDER, etc.)
- December 2020
Product Search Platform "MARS SCREEN" service launches
- February 2021
Next-Generation DX Solution “AIMY Screen" β version service launches
- June 2021
API Integration Cloud Service "MARS Platform" service launches
- September 2022
Ideathon held in Phnom Penh (Cambodia)
- March 2023
Alpha version service of AI Chatbot Service MARS EmoTech launched
- March 2023
Major version upgrade of Website Search MARS FINDER
- June 2020
- 2025 - 2026
-
- August 2025
New feature "AI Answer" released for Website Search MARS FINDER
- March 2026
Yujiro Takei appointed as President and CEO
- August 2025
BOARD OF DIRECTORS
- CEO
- Yujiro Takei

Since our founding, we have focused on “Search” as our core, guided by our purpose: “We change the search. We change your business.” Our mission has always been to create valuable time for our customers through our services.
Today, we stand at a major turning point. We have entered an era where AI serves as the primary interface between humans and computers in every aspect of life and work. We are shifting from an age where humans manually operate tools to one where AI agents proactively deliver optimal solutions. The very definition of “search”—and our way of life itself—is undergoing a dramatic transformation.
To meet these societal demands, we are accelerating our development speed more than ever. We will ensure a wide range of collaboration by providing optimized interfaces at every layer, allowing our partner companies and, most importantly, “AI agents” to seamlessly leverage our specialized functions.
Embracing change, we are evolving our organization with flexibility. By fostering an “agile mindset” in every employee to balance speed and adaptability, we are committed to leading the new era of search.
- 1999
- Joined Kanematsu Corporation
- 2013
- Appointed Director of Kanematsu America do Sul Imp. Exp. Ltd.
- 2017
- Joined MARS FLAG Corporation
- 2017
- Appointed Company Executive Officer
- 2018
- Became Director of the company(Current Position)
- 2026
- Became CEO of the company(Current Position)
- Director
- Yuichi Saegusa
- 2008
- Served as a research assistant at the Graduate School of Tokyo Institute of Technology
- 2011
- Joined BIO Communications Inc.
- 2015
- Joined MARS FLAG Corporation
- 2022
- Became Director of the company(Current Position)
- Director
- Aya Shirota
- 2009
- Joined MARS FLAG Corporation
- 2026
- Became Director of the company(Current Position)
- Director
- Takaaki Nagayama
- 1987
- Joined IBM Japan, Ltd.
- 1991
- Joined Oracle Japan, Ltd.
- 1995
- Oracle Corporation (US) Transfer
- 1998
- Became Asia Products Division Vice President of the company
- 1999
- Established Sun Bridge Co., Ltd.
- 2007
- Appointed President & Representative Director of Sun Bridge Co., Ltd.
- 2009
- Appointed Director of Hamster Inc.(Current Position)
- 2010
- Appointed Director of Bee Trend Co., Ltd.(Current Position)
- 2011
- Appointed Director of MARS FLAG Corporation(Current Position)
- 2013
- Appointed Director of Revolver Co., Ltd.(Current Position)
- 2016
- Appointed Director of BakuChu Co., Ltd.(Current Position)
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