GROUP Group Companies
United by a common goal, the TOAMI Group moves forward together to support the architecture
and civil engineering sectors.
By integrating the expertise of each member company, we offer a wide range of support,
from the stable delivery of wire mesh products to complex on-site construction.
Group Companies
Construction & Civil Engineering Materials
Construction & Civil Engineering Materials
Construction & Civil
Engineering Services
Estimation Data Services & Global Trading
& Global Trading
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Watanabe Co., Ltd. HP
Watanabe Construction is a construction company with operations in Shizuoka, Iwate, and Fukuoka Prefectures. Our core business is formwork for civil engineering structures (such as bridge abutments, piers, and retaining walls) and various buildings. We also provide a wide range of services, including related earthworks and concrete work, as well as the construction of renewable energy facilities, such as solar power plants.
＜Location＞ 1827-2, Oze-cho, Chuo-ku, Hamamatsu-shi, Shizuoka, Japan TEL. （053）435-3168MAP
Ono Work Site HP
＜Location＞ 1324, Ono, Hamana-ku, Hamamatsu-shi, Shizuoka, JapanMAP
Kyushu Branch Office
＜Location＞ 2-1-18, Higashiminato, Kokurakita-ku, Kitakyushu-shi, Fukuoka, Japan(Located within the premises of Sumikura Steel Co., Ltd.)MAP
Kansai Branch Office
＜Location＞ 10-20, Nakano-shinmachi, Shijonawate-shi, Osaka, Japan（Located within TOAMI Headquarters）MAP -
Sumikurakouzai Co., Ltd. HP
Headquartered in Kitakyushu—Japan’s historic "City of Steel"—Sumikurakouzai is a professional leader in steel processing. Operating on a vast site of 32,822 square meters (equivalent to approximately 4.6 soccer fields), the company manufactures and sells processed construction materials and secondary wire rod products. All operations are conducted under a sophisticated quality control system based on JIS (Japanese Industrial Standards) and various official certifications.。
＜Location＞ 2-1-18, Higashiminato, Kokurakita-ku, Kitakyushu-shi, Fukuoka, Japan TEL. （093）561-4462MAP
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FD Techno Co., Ltd. HP
FD Techno is a specialized manufacturer engaged in the production and sale of "Fab-Deck" floor slabs. Our headquarters in Miyawaka City, Fukuoka, is ideally situated for efficient logistics—approximately one hour from Fukuoka City and 45 minutes from Kitakyushu City—allowing us to serve clients across the Kyushu and Okinawa regions. The core advantage of the Fab-Deck system is its ability to integrate formwork and rebar installation into a single process, significantly enhancing construction efficiency.
＜Location＞ 800, Inamitsu, Miyawaka-shi, Fukuoka, Japan TEL.（0949）52-3035MAP
Kanto Factory
＜Location＞ 98-76, Naka, Shiroi-shi, Chiba, Japan（Located within TOAMI Kanto Division） TEL.（047）404-4172 MAP -
Nakajo Koumuten Co., Ltd.HP
Headquartered in Nakama City, Fukuoka Prefecture, Nakajo Koumuten is a specialist firm primarily focused on formwork. With a proud history of approximately 60 years, the company boasts a team of about 200 members, including staff and dedicated formwork carpenters, providing top-class construction capacity in the Kyushu region. Beyond Kyushu and Okinawa, we handle projects across the Chugoku region, remote islands, and even international construction assignments.
＜Location＞ 1164-29, Sunahori, Nakasokoino, Nakama-shi, Fukuoka, Japan TEL.（093）246-1088 MAP
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Erde Co., Ltd.HP
Headquartered in Makinohara City, Shizuoka Prefecture, Erde is a specialized firm focused on civil engineering and road paving projects. The company boasts a highly skilled team of professionals, including numerous engineers who have served as chief engineers on large-scale projects and hold advanced national certifications, such as First-Class Civil Engineering Construction Management Engineers and First-Class Paving Construction Management Engineers. Erde is a group of high-level experts dedicated to the meticulous management of general civil engineering and paving construction.
＜Location＞ 1-61, Osawa, Makinohara-shi, Shizuoka, Japan TEL.(054)823-5513 MAP
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SMC TOAMI HP
SMC TOAMI is a key strategic hub for our operations in Asia. Based in Vietnam with its own headquarters, factory, and office, the company manufactures and sells welded wire mesh and related products. Beyond manufacturing, SMC TOAMI provides specialized services in architectural drawing analysis and quantity surveying for both domestic and international markets. By delivering precise data and calculations, the company contributes to the accurate and cost-effective planning of diverse construction projects.
＜Headquarters＞
1A Street, Phu My 1 Industrial Zone, Phu My Ward, Phu My Town, Ba Ria – Vung Tau Province, Vietnam TEL.84-6-4392-4410MAP
＜Ho Chi Minh Office＞
124 Ung Van Khiem Street, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam TEL.84-28-3512-5555MAP -
TOAMI VIETNAM HP
Established in April 2025 and commencing operations in June of the same year, TOAMI VIETNAM LLC is a wholly-owned subsidiary of TOAMI CORPORATION. The company specializes in architectural drawing analysis, quantity surveying (QS) services, and technical consulting, with particular expertise in the estimation of shear reinforcement and residential foundation rebar. Based in Ho Chi Minh City, our local team of experts—possessing profound knowledge of structural drawings—utilizes advanced estimation software to deliver rapid and highly accurate services.
5th floor, Savista Realty Building Le Van Duyet,90 Le Van Duyet Street, Ward 1, Binh Thanh District, HCMCMAP