Thank you for visiting our website.
We were founded in October 1960 as a trading company specializing in automotive aftermarket parts.Since then, we have expanded our business into assembly services for construction machinery and wire harness manufacturing.
In 2017, we also started a painting business.By establishing an integrated production system covering sheet metal processing, painting, and assembly, we continue to enhance the quality of service we provide to our customers.
Since 2003, we have expanded our operations globally, establishing business activities in China, Indonesia, the United States, and the Philippines.
This growth has been made possible thanks to the continued support and efforts of our customers, business partners, local communities, and every one of our employees who has walked this journey with us.We would like to express our sincere gratitude to all of you.
The name “Leaden” reflects our aspiration to become a company that leads the industry.
Our major customers in the construction and industrial machinery sectors continue to grow on a global scale, and we are committed to growing alongside them in order to meet their evolving needs.
No matter how times may change, we strive to remain a company that people are glad they chose.By nurturing the next generation of talent, growing together with our local communities, and carrying forward our trust and pride into the future, we will continue to take on new challenges as Leaden.
We sincerely appreciate your continued support.
Let us strengthen our foundation and become a company of action for the next 10 and 20 years.
Our Philosophy
By valuing people and resources, we strive to contribute to society through our work.
Management Policy
We place our customers first, work with a spirit of gratitude, and pursue continuous growth and development.
Code of Conduct
We value the spirit of people, pursue our dreams, and proactively take on new challenges.
Company Motto
Renewed each day with gratitude.
| Company Name | Leading CO.,LTD. |
|---|---|
| Established | October 1, 1960 |
| Head Office | 3-21-9 Higashiueno, Taito-ku, Tokyo |
| Representative |
Chairman & Representative Director Takahiro Tsukamoto President & Representative Director Kohei Tsukamoto |
| Business details |
Manufacturing and sales of construction machinery parts Manufacturing and sales of industrial machinery parts Manufacturing and sales of automotive parts Manufacturing and sales of electrical and electronic components Manufacturing and sales of wire harnesses |
| Capital | 50 million yen |
| Sales | 15.09 billion yen (FY2024) |
| Number of employees | 332 people in Japan / 1,335 people in the entire group (as of the end of March 2025) |
| ISO Certification |
ISO14001 ISO14001 Acquired in December 2006 ISO9001 Acquired in January 2015 |
| Board of Directors |
Chairman & Representative Director Takahiro Tsukamoto President & Representative Director Kohei Tsukamoto Managing Director Toru Karube Managing Director Hiroshi Iida Managing Director Yutaka Amada Auditors Ritsuko Tsukamoto |
| Main Banks |
Mitsubishi UFJ Bank Ueno Central Branch Mizuho Bank Inaricho Branch Asahi Shinkin Bank Nishimachi Branch |
HEAD OFFICE
110-0015
3-21-9 Higashi-Ueno, Taito-ku, Tokyo
TEL.03-5812-1720 (Main)
FAX.03-5812-1723
TSUCHIURA OFFICE
300-0015
7-13 Kitakamidate-cho, Tsuchiura-shi, Ibaraki
TEL.029-832-1101 (Main)
FAX.029-832-3118
KANDATSU PLANT
300-0015
7-15 Kitakamidate-cho, Tsuchiura, Ibaraki
TEL.029-832-3111 (Main)
FAX.029-832-1102
KASAMA PLANT
309-1713
790-3 Kashiwai, Kasama, Ibaraki
(Ibaraki Central Industrial Park, Kasama Area)
TEL.0296-71-8112(Main)
FAX.0296-71-8113
SHIGA PLANT
528-0025
1-32-2 Nishihayashiguchi, Minakuchi-cho, Koka-shi, Shiga
LEADEN Co., Ltd. (located within Kosei Rikoun Co., Ltd. Koka SCM Center)
TEL.0748-63-5213(Main)
FAX.0748-63-2631
TSUKUBA LOGISTICS CENTER
300-0315
13-2 Kasuminomori, Ami-machi, Inashiki-gun, Ibaraki
TEL.029-833-6021(Main)
FAX.029-833-6030
SHANGHAI LEADING ELECTRIC CO.,LTD
3F,NO7LANE 1130TONGPUROAD, PUTUO, SHANGHAI
TEL:+86-21-52705055
FAX:+86-21-52705101
DAFEING LEADING ELECTRIC CO.,LTD
CHANGZHOUHOGH TECHZONE，NO.88 EVERGREENROAD, DAFEING, JIANGSU, CHINA
TEL:+86-0515-8360-0898
FAX:+86-0515-8360-0899
PT.LEADEN INDONESIA
Jl. Raya Cibitung KM, 48.8 Cibitung,
Bekasi 17520 Jawa Barat, Indonesia
TEL:+62-21-8910-9130
PT.LEADEN INDONESIA
BANDUNG
Kawasan Industri De Prima Terra Blok B 1,
Kav. 5 Jl. Raya Sapan, Desa Tegalluar,
Kecamatan Bojongsoang Kabupaten Bandung,
Jawa Barat, Indonesia, 40297
TEL:+62-22-8752-8218
FAX:+62-22-8752-8470
LEADING AMERICAS
INCORPORATION
130 Arrowhead Drive Unit 12 and 13,
Hampshire, Illinois.
TEL:+1-815-355-3095
Leaden Philippines,Inc.
BLK.9-B,LOT-5,PH3 Lima Technology
Center BATANGAS, Batangas.
TEL:+63-43-430-0300
