Message from the President

SEC is a specialist real-time technology company with a desire to contribute to the safety and development of the networked society. The name SEC comes from our English company name, Systems Engineering Consultants Co., LTD. and highlights our determination to be professional system engineers.

Founded in 1970, SEC initially focused on the development of space systems incorporating minicomputers based on our core real-time technology. We also developed applied technologies for public infrastructure system measurement and control. Our focus has now shifted to embedded software for smartphones in the wireless field and other applications, but real-time technology has remained a constant part of our business.

Today we are focusing in particular on ubiquitous technology. This technology makes our lives safer, easier, more comfortable, and efficient by connecting everything around us to computer networks. Real-time technology that is synchronized, responsive, and instant will sit at the heart of this networked society. We are aiming to propel SEC into a new phase of growth, guided by this strategic vision of the networked society.

Corporate Overview

Company name

Systems Engineering Consultants Co., LTD. (SEC)


May 1970


¥477 million (As of June 25, 2020)


Itsushi Akiyama, Chairman
Shintaroh Sakurai, President
Akira Nakamura, Executive Vice President
Toshiaki Sugiyama, Director
Shunji Sakai, Audit and Supervisory committee member
Motohiko Matsumoto, Audit and Supervisory committee member
Kunihiro Nishimura, Audit and Supervisory committee member

Number of employees

316 (As of April 1, 2020)

Business activities

SEC provides real-time software and solutions in the public infrastructure and advanced technology fields

Net sales

¥6,343 million (FY3/20)


AMSEC, INC.(Sunnyvale, California, U.S.A.)


Head Office
Setagaya Business Square
4-10-1 Yoga, Setagaya-ku. Tokyo 158-0097, Japan
+81-3-5491-4770 Fax.+81-3-5491-4771

Osaka Office
Shin-Osaka Prime Tower
6-1-1 Nishinakajima, Yodogawa-ku, Osaka 532-0011, Japan
+81-3-5491-4760 Fax.+81-6-6309-0582

Corporate History

May 1970

Systems Engineering Consultants Co., LTD. founded in Shibuya Ward, Tokyo

March 1971

First project in the public infrastructure business field: development of an expressway management system

March 1971

First project in the space, robotics & advanced technologies business field: development of a system to test rocket engine performance

October 1979

First embedded software project: development of water-based telemetry system

January 1984

First project in the mobile networking business field: development of network control system

June 1985

Osaka office opened

January 1992

AMSEC, INC. established in Sunnyvale, California

May 1995

First project in the internet technology business field: development of a library multimedia system

January 1998

Secured ISO 9001 certification for quality management systems

July 1999

First project in the wireless and embedded software business field: development of embedded software for mobile handsets

December 2000

Secured ISO 14001 certification for environmental management systems

November 2001

PrivacyMark certification granted

March 2003

ISMS certification granted

June 2004

JASDAQ market listing

April 2007

ISO/IEC 27001 certification granted

July 2010

Head office moved to Setagaya Ward, Tokyo

July 2012

Osaka office moved to Nishinakajima, Yodogawa Ward, Osaka

March 2014

Secured ISO 22301 certification for business continuity management systems

June 2015

Transition to a Company with Audit and Supervisory Committee

March 2017

Listed on the second section Tokyo Stock Exchange

September 2017

Tokyo Stock Exchange first section listing

Financial Information