Seika Quick Guide

Contributing to the development of a prosperous society through the trading of machinery

As a general machinery trading company, Seika Corporation provides domestic sales as well as import and export of various plants, environmental equipment, electronic equipment, information communication equipment, and other machinery and equipment used in every industry under the motto of “contributing to the development of a prosperous society through the trading of machinery.”



The Company was established in 1947 in Moji-shi (currently Moji-ku, Kitakyushu-shi) by company officials of the former Mitsubishi Corporation, which was dissolved before the establishment.

In 1948, the Company opened offices in western Japan in the cities of Nagasaki, Fukuoka, Osaka, and Hiroshima. In 1954, the Company established its first overseas representative office in West Germany, and in 1961, it became listed on the First Section of the Tokyo Stock Exchange.

In 1983, the Company moved its head office to Tokyo. In 2022, it was listed on the Prime Market of the Tokyo Stock Exchange, and as of 2023, the Company has grown to a group with 129 locations (103 in Japan and 26 overseas) and continues to expand its business.

Osaka Shosen Mercantile Steamship Co. Building, where the Company was located at the time of its establishment

Three Businesses

Energy Business

Energy is the key infrastructure that forms the basis of daily life and economic activities.
We provide sales and after-sales service for energy-related equipment in line with the Green Growth Strategy for electric power companies and other core industries that support social infrastructure, such as petroleum, chemicals, and steel manufacturing.

Industrial Machinery Business

As a general machinery trading company, we provide sales and maintenance of various products and equipment to contribute to improved productivity and reduced impact on the environment through energy and resource saving and DX conversion at plants.

Product Business

The Seika Group handles unique and highly competitive products both domestically and internationally, including engines, valves, pumps, and measuring equipment.

  • Manufacturer: Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.; Sales: Seika Daiya Engine Co., Ltd.
  • Manufacturer: Tsurumi Manufacturing Co., Ltd.; Sales: Tsurumi (Europe) GmbH
  • Manufacture and sales: Nippon Daiya Valve Co., Ltd.
  • Manufacturer: Mesa Laboratories, Inc.s

Company Statistics






(As of April 2023)

Number of employees

316 (non-consolidated) 1,012 (consolidated)

(As of March 31, 2023)

Net sales

billion yen

Transaction value:
175.7 billion yen

(Fiscal year ended March 31, 2023)

Ordinary income

6.28billion yen

(Fiscal year ended March 31, 2023)

Annual number of trading companies


(Fiscal year ended March 31, 2023)

Green innovation
transaction value

96.5billion yen

(As of March 2023)

Dividend amount


(Fiscal year ended March 31, 2023)



Providing strong products that are highly specialized and technical

The Group’s greatest strength is the unique products owned by group companies and our strong competitive products in various markets, including niche markets. While we have many products and commercial rights, we value the relationships we have built with each of our manufacturers and conduct sales activities while keeping in mind these connections so that we can grow together.


Providing on-site responsiveness as the foundation of all sales activities

Seika Corporation has connections with many customers including major companies in various industries such as electric power companies and chemical companies.
Our customers can feel safe placing their trust in our accurate and rapid on-site responsiveness and information gathering capabilities that allow us to meet their needs based on long-standing personal relationships and our solutions business developed by obtaining timely on-site information.


Expanding business by leveraging our network

The Group has a strong network of 87 locations in Japan and 26 overseas. By leveraging the unique characteristics of each location, we implement a variety of measures to expand business opportunities, such as sharing information on products, the initiatives of each company, and industry trends.
We will continue to accelerate our group management strategy with the aim of building a network and portfolio to optimize business between companies and across borders.

Corporate Philosophy

logo:Seika Corporation

Our philosophy is to Contribute to Society Through the Expansion of Business.

Seika Corporation contributes to the realization of an affluent society through the expansion of its business and as a creative industrial partner that brings real value.

VIORB 2030

What We Can Do for the Global Environment and Industrial Development

The Group formulated a long-term management vision for 2030, VIORB 2030, to help realize a fulfilling society by putting into practice our purpose of “supporting the sustainable generation of energy and industrial activities in harmony with the global environment.”