What Infratech does

Infratech Co., Ltd. (インフラテック株式会社) is a Kagoshima-headquartered, privately held Japanese manufacturer of precast concrete and Glass Fiber Reinforced Concrete (GRC) products for civil engineering and infrastructure. Founded in 1956 as Shin Kyushu Block Kogyo, the company was renamed Infratec in 1991 and operates 17 factories and 27 sales offices across Kyushu, Shikoku, Kansai, Chubu, Kanto, Tohoku, and Okinawa, plus a joint-venture GRC operation in Korea. Its product portfolio spans five categories — roads/traffic, residential/landscaping, rivers/waterways, disaster prevention/restoration, and maintenance/repair — including proprietary lines such as the KC Form embedded formwork series, KC Circle, Reborn Side Ditch (molten-slag aggregate), Shirasu Concrete products, and the recently patented IF Zero-cement GRC.

The company's technical differentiation rests on proprietary concrete formulations rather than digital or AI capabilities. In-house developed technologies include high-flow vibration-free self-compacting concrete that reduces production noise from 102.5dB to 75.6dB, GRC using alkali-resistant shirasu volcanic-ash glass fibers achieving roughly 10x the bending strength of ordinary concrete, shirasu-aggregate concrete with superior sulfate resistance for marine structures, and recycled molten-slag aggregate concrete from waste incineration. Design work is supported by 3D CAD and FEM analysis, and the Okayama factory operates at over 2,000 m²/day capacity. The company is a registered construction contractor with Japan's Ministry of Land, Infrastructure, Transport and Tourism and is a member of Japan Road Association, Japan Concrete Institute, and Japan Arch Culvert Association.

Infratech generates revenue by selling precast concrete components directly to general contractors, public-sector buyers (national and prefectural/municipal governments), and railway operators through its own enterprise field-sales force, supplemented by regional digital catalogs. Pricing is not publicly disclosed. Reported parent revenue is ¥27.6B and consolidated group revenue is ¥41.3B as of September 2025, with 699 parent employees and 1,128 group employees. The firm has pursued a roll-up strategy since 2013, acquiring and integrating regional precast concrete manufacturers (Yamaguchi Infratec, Sampo Industrial, Sato Concrete, Kanmon Concrete Industrial) while exiting non-core assets such as Kagoshima Garden Golf Club in 2024. Leadership consists of a President, Chairman, and an executive officer bench drawn entirely from operational and civil engineering backgrounds.

Name

Infratech

Legal name

インフラテック株式会社

Website

https://infratec.co.jp

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Infratech is a privately held Kagoshima-based manufacturer of precast concrete and GRC infrastructure products, selling directly to general contractors, government agencies, and railway operators through 17 factories and 27 sales offices across Japan.

Ownership category

akta.pro rank

Product category

Precast Concrete Infrastructure Materials

NAICS

Other Concrete Product Manufacturing (327390), Concrete Pipe Manufacturing (327332)

SIC

Concrete Products, Except Block & Brick (3272)

akta.pro primary industry

Stormwater Drainage & Culvert Systems (IMANADAH)

Keywords

• Precast concrete products
• Infrastructure construction materials
• GRC concrete products
• Civil engineering formwork
• Concrete drainage products

Headquarters

HQ city

Kagoshima-shi

HQ country

Japan

HQ region

Asia

Offices43 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Technology or R&D, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Infrastructure parts sales: Manufacturing and selling precast concrete products (土木・建築用プレキャストコンクリート製品) and GRC products for civil engineering and construction applications including roads, rivers, housing/landscaping, disaster prevention, and maintenance.
2. Construction services: Building and civil engineering construction services (建築・土木工事).

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Infratech manufactures and sells precast concrete products and GRC (Glass Fiber Reinforced Concrete) products for civil engineering, road, river, housing/landscaping, disaster prevention, and maintenance infrastructure applications. The company operates 17 factories and 27 sales offices across Japan, also providing registered construction contractor services to general contractors, government agencies, and railway operators.

Product overview

インフラテック株式会社（INFRATEC CO.,LTD）は、鹿児島県鹿児島市に本社を置くプレキャストコンクリート製品・GRC（ガラス繊維補強コンクリート）製品の製造販売 및 건축・토목工事を行う建設業者である。同社の製品ポートフォリオは、道路・交通製品、住宅・景観製品、河川・水路製品、防災・復旧製品、維持・管理製品の5つの主要カテゴリに分類される。埋設型枠製品群（FSフォーム、KCフォーム、JSフォーム、LSフォーム、KCスタンドフォーム）、防草製品群（グラスカル、GSボードライト、みぞピタ）、道路維持関連製品群（プレキャスト壁高欄、LSスラブ、グーリッド、エクセリート、レインスルー）、そしてシラスコンクリート製品（落蓋側溝II型、KD側溝）、リボーン側溝などの環境配慮型製品を展開している。技術的には高流動コンクリート（自己充填技術・騒音低減）、GRC特殊曲がるコンクリート（一般的なコンクリートの約10倍の曲げ強度）、そして令和7年にはIFゼロセメントGRCが特許取得された。設計には3次元CAD、FEM（有限要素法）解析を活用している。本社は鹿児島市、岡山工場ではドイツの最新技術と自社のGRC開発力を融合した製造設備（日産2,000㎡以上の製造能力）を稼働させている。

Differentiator

Problem solved

Functional benefit

Brands

• KCサークル (KC Circle): FRC埋設型枠製品 — fiber-reinforced concrete embedded formwork product, awarded MITI Good Design Product in 1987, 1989, and 1994.
• KCフォーム (KC Form)
• KCスタンドフォーム (KC Stand Form)
• リボーン側溝 (Reborn Gutter/Ditch)
• シラスコンクリート製品 (Shirasu Concrete Products)
• インフラエース (Infra Ace)
• IFゼロセメントGRC
• スポッティー (Spotty)

Products and services

• FS Form (FSフォーム) Embedded formwork product using FRC (Fiber Reinforced Concrete), used for maintenance and repair of concrete structures. FRC embedded permanent formwork for civil engineering repair applications.
• KC Form (KCフォーム) FRC embedded formwork product using synthetic fiber for improved adhesion with cast-in-place concrete, with excellent abrasion and salt resistance. Certified under the private development construction technology review and certification system in 1989.
• JS Form (JSフォーム) FRC embedded formwork product used for maintenance and repair of concrete structures. Sold as part of Infratech's FRC embedded formwork family for civil engineering applications.
• LS Form (LSフォーム) FRC embedded formwork product used for maintenance and repair of concrete structures. Part of Infratech's permanent formwork lineup for civil engineering repairs.
• KC Stand Form (KCスタンドフォーム) FRC embedded formwork product for concrete structure maintenance and repair using polyester/pinylon synthetic fiber for improved adhesion with cast-in-place concrete. Cement-saving eco-product with high abrasion and salt resistance.
• KC Circle (KCサークル) FRC product in circle shape with water permeability, used in permeable pavement and civil engineering applications. Selected as MITI Good Design Product in 1987, 1989, and 1992.
• Grass Cal (グラスカル) Weed prevention product used to suppress weed growth for landscaping and infrastructure applications.
• GS Board Light (GSボードライト) Lightweight weed prevention board product for weed suppression in landscaping and infrastructure applications.
• Mizo Pita (みぞピタ) Weed prevention product designed to fill gaps in side ditches and similar features to suppress grass growth in infrastructure maintenance.
• Precast Wall Railing (プレキャスト壁高欄) Factory-precast concrete wall railing product for road maintenance and roadside infrastructure applications.
• LS Slab (LSスラブ) Slab-shaped concrete product for road maintenance and infrastructure construction applications.
• Grid (グリッド) Grid-shaped precast concrete product for road maintenance and infrastructure applications.
• Excelert (エクセルート) Road-use precast concrete product for road maintenance and infrastructure construction.
• Rain Through (レインスルー) Precast concrete product for road maintenance with drainage functionality for road and highway applications.
• Reborn Side Ditch (リボーン側溝) Precast concrete side ditch product using molten slag aggregate (waste incineration byproducts vitrified at 1,200°C+) as recycled aggregate, contributing to circular economy infrastructure.
• Fall Cover Side Ditch Type II (落蓋側溝II型) Side ditch product using shirasu concrete, with long-term strength development and sulfate resistance for marine structures, hot spring foundation works, and other harsh environmental applications.
• KD Side Ditch (KD側溝) Side ditch product using shirasu concrete that maintains higher strength over the long term than ordinary concrete. Sold for infrastructure drainage applications.
• 4-Section Assembled Box Culvert (4分割組立式ボックスカルバート) Assembled precast box culvert product with divisible sections suitable for on-site assembly at construction sites. Featured in the March 2026 product topics.
• Three-Section Box (三分割BOX) Three-section precast concrete box culvert product designed for field division and assembly. Featured in the December 2025 product topics for infrastructure construction.
• High Peak Stop / High-Peace-Stop (Car Stop) Vehicle car-stop product for parking and infrastructure applications; selected as MITI Special Good Design Product in fiscal year 1994.
• Spotty (スポッティー) Anti-glare panel product for highway applications, providing glare prevention for expressway drivers.
• Infra Ace (インフラエース) High-performance precast concrete product line manufactured at Infratech's Okayama factory (with daily production capacity exceeding 2,000 square meters), combining German latest technology with Infratech's GRC development capability.
• IF Zero-Cement GRC (IFゼロセメントGRC) Zero-cement GRC product with patent granted (February 2026), reducing CO2 emissions during concrete production. Featured in the February 2026 product topics announcement.
• Building and Civil Engineering Construction Services General building and civil engineering construction services (建築・土木工事) offered as a registered construction contractor with the Ministry of Land, Infrastructure, Transport and Tourism, covering infrastructure and building construction projects.

Quantifiable outcome

• Noise reduction from 102.5dB to 75.6dB using vibration-free concrete technology
• +1 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

18 partnerships are on record, tiered subsidiary and minor.

• Oshima Kyowa Infratech Co., Ltd. (大島共和インフラテック)subsidiaryStrategic or Co-development PartnerJoint venture with Kagoshima Kyowa Concrete Industrial Co., Ltd., established in 2009 and subsequently transferred the Oshima factory to this entity. Operates as a consolidated subsidiary.
• Yamaguchi Infratech Co., Ltd. (山口インフラテック)subsidiaryStrategic or Co-development PartnerWholly-owned subsidiary (株)九コン山口 renamed to 山口インフラテック株式会社 in July 2015. Specializes in precast concrete products in Yamaguchi prefecture.
• Tokyo Cement Industry Co., Ltd. (東京セメント工業)minorStrategic or Co-development PartnerInfratech acquired shareholding to become the largest shareholder in September 2015, forming a strategic business relationship.
• K Light Co., Ltd. (鹿軽量)minorStrategic or Co-development PartnerInfratech became the largest shareholder in January 2019, establishing a strategic relationship.
• Sata Concrete Engineering Co., Ltd. (佐多エンジニアリング)minorStrategic or Co-development PartnerBridge construction specialist company established in June 2015 as a subsidiary.
• Sampo Industrial Co., Ltd. (株)三本工業minorStrategic or Co-development PartnerAcquired as a wholly-owned subsidiary in February 2019.
• Sekon Concrete Industrial Co., Ltd. (関門コンクリート工業)minorStrategic or Co-development PartnerAcquired as a wholly-owned subsidiary in July 2022, strengthening presence in the Kanmon region.
• Korea GRC Co., Ltd. (韓国GRC)minorStrategic or Co-development PartnerJoint venture with J.F.B. Co., Ltd., Tome Co., Ltd., and Shinko ACE Denki Co., Ltd., established in October 1991 for GRC manufacturing in Korea.
• Tokucon Co., Ltd. (トクコン)minorStrategic or Co-development PartnerBecame the largest shareholder by acquiring shares in September 2013, and was integrated through business management in June 2016.
• Daiken Concrete Industrial Co., Ltd. (大建コンクリート工業)minorStrategic or Co-development PartnerBusiness alliance established in December 2013.
• Hanshin Infratech Co., Ltd. (阪神インフラテック)minorStrategic or Co-development PartnerEstablished in June 2013 and integrated into Infratech group management in June 2016.
• Neogeo Infratech Co., Ltd. (ネオジオインフラテック)minorStrategic or Co-development PartnerEstablished in June 2013 and integrated into Infratech group management in June 2016.
• Ministry of Land, Infrastructure, Transport and Tourism (国土交通省)minorOthersGovernment ministry referenced in the Links section. Main regulatory body overseeing construction and infrastructure standards.
• Ministry of Agriculture, Forestry and Fisheries (農林水産省)minorOthersGovernment ministry referenced in the Links section.
• Japan Road Association (日本道路協会)minorOthersIndustry association referenced in the Links section. Sets road construction standards and guidelines.
• Japan Arch Culvert Association (日本アーチカルバート工業会)minorOthersIndustry association for arch culvert products, referenced in the Links section.
• Japan Concrete Institute (日本コンクリート工学協会)minorOthersTechnical association for concrete engineering, referenced in the Links section.
• Infratec Service Co., Ltd. (インフラテックサービス)minorOthersGroup service company.

Scale indicators3 records

Recent moves16 records

Expansion highlights5 records

Direct peers

• Nippon Concrete Industries Co., Ltd. Japan's leading manufacturer of concrete poles, piles, and precast concrete products for civil engineering and infrastructure. Directly comparable in product portfolio (precast, poles, drainage) and customer base (government utilities, general contractors) to Infratech.
• Maeda Concrete Industries Co., Ltd. Major Japanese concrete pole and pile manufacturer with a similar infrastructure precast product range sold to public works customers. Comparable business model in precast concrete infrastructure components with multi-decade government relationships.
• Geostar Corporation: Japanese manufacturer of concrete tunnel segments, retaining walls, and infrastructure precast products. Direct competitor in specialized precast concrete for civil engineering applications.
• Meisei Industrial Co., Ltd. Manufacturer of concrete tunnel segments and pipeline products serving infrastructure construction in Japan. Comparable in specialized precast concrete production for civil engineering projects with government clients.
• Asia Pile Holdings Co., Ltd. Japanese concrete pile and foundation specialist serving infrastructure construction. Comparable as a precast concrete materials producer with similar customer base of general contractors and developers.
• Nippon Hume Co., Ltd. Specialist manufacturer of hume pipe and concrete drainage products for Japanese infrastructure. Directly comparable product range in underground/utility concrete conduit systems used in road and civil engineering.
• Heisei Concrete Industry Co., Ltd. Japanese concrete products manufacturer with focus on precast concrete for infrastructure and civil engineering. Directly comparable mid-sized competitor in the fragmented Japanese precast concrete market.

Broad incumbents

• Taiheiyo Cement Corporation: Japan's largest cement manufacturer with vertically integrated concrete products and aggregate businesses. Significantly larger and broader portfolio but overlaps with Infratech in precast concrete and cement-derived construction products.
• Sumitomo Osaka Cement Co., Ltd. Major Japanese cement and construction materials producer. Larger and more diversified than Infratech but overlaps in cement-related precast concrete infrastructure products serving the same Japanese customer base.
• Obayashi Road Construction Co., Ltd. Major Japanese road construction contractor that also produces and installs concrete products for pavement and drainage. Broader incumbent that consumes similar concrete products for road infrastructure projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights8 records

Customer concentration

• Xtwitter.com/infratec_pr
• YouTubeyoutube.com/channel/UCinfratec
• LinkedInlinkedin.com/company/infratec-co-ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries13 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Infratech