History

January 1950

Established Seiki Construction Kogyo Co., Ltd. (Masaaki Seto, President and Representative Director), with capitalization of ¥1 million

October 1955

Received order for first paving project from the Ministry of Construction

November 1956

Received order for first paving project from the Japan Highway Public Corporation

April 1962

Changed company name to Seiki Construction Co., Ltd.

January 1967

Split off Road Division of Tokyu Construction Co., Ltd., and established Tokyu Road Co., Ltd. (Kenzaburo Kondo, President and Representative Director) with capitalization of ¥30 million

September 1973

Listed Seiki Construction Co., Ltd. on the Second Section of the Tokyo Stock Exchange.
Capitalized ¥450 million

May 1982

Started operations as Seikitokyu Kogyo Co., Ltd., and as a member of the Tokyu Group, due to the merger of Seiki Constuction Co., Ltd. and Tokyu Road Co., Ltd., one of the Group’s original member.

November 1982

Changed listing of company stock to First Section of the Tokyo Stock Exchange

March 1993

Capitalized ¥10,970,320,000

March 1999

Received order for the first performance-based type of paving project from the Ministry of Construction

January 2000

Marked 50th anniversary of company’s founding

March 2001

Received order for two of the three paving projects from the Ministry of Land, Infrastructure, Transport and Tourism in the general-evaluation-based bidding method introduced for the first time by the Ministry.

October 2004

Acquired ISO 14001 certification (all departments of head office, four branch offices and Kanto Product Sales & Marketing Branch Office in the Kanto region)

August 2005

Capitalized ¥1,097,030,000

September 2005

Capitalized ¥7,197,030,000

October 2005

Unified ISO 9001 certification for entire company
(Integrated certification for related departments of head office and all 11 branch offices)

March 2006

Capitalized ¥2 billion

September 2010

Acquired ISO 14001 certification (all branch offices)

December 2018

Acquired ISO 45001 certification (all departments of head office and all branch offices)

January 2020

Marked 70th anniversary of company’s founding

March 2021

Acquired ISO 55001 certification (Construction Department of Business Promotion Head Office and Technology Department of Technology Management Head Office)