株式会社タック

What 株式会社タック does

株式会社タック is a Japanese specialty engineering firm focused on precast concrete (PC) construction, founded on November 15, 1996 in Motosu City, Gifu Prefecture. The company operates at a small scale with approximately 8-10 employees and registered capital of ¥10 million, serving Japan's largest general contractors (スーパーゼネコン) including Takenaka, Shimizu, Obayashi, Kajima, Taisei, Daiwa House, Toda, and others. Its business is organized around four pillars: PC construction consulting (translating RC structural designs into PC execution plans), PC construction drawing services, manufacturing and sale of proprietary construction fixtures (jigs and templates), and production of its original Steel Tak Panel.

The company's proprietary technology portfolio centers on field-feedback-driven product development. The flagship Steel Tak Panel combines a steel frame with wire mesh and insulation, achieving 25-30% weight reduction over conventional PC panels while improving dimensional accuracy and shortening production cycles. Its fixture line includes the RB Catch Template (75% cost reduction vs. steel column rebar templates, ~1/3 weight), Sleeve Guide, Sleeve Catch series (including Zero Type for use with Top's Joint, Japan Spicer Sleeve, and Tokyo Steel threaded sleeves), Column Main Reinforcement Template, and PC Scaffolding Connection Hardware designed to eliminate post-installation repairs. All products address specific pain points in PC assembly: rebar positioning accuracy, splice sleeve fixation, and reducing construction time on-site.

Revenue is generated through B2B enterprise sales via direct phone contact and website inquiries, with custom quotation-based pricing on a per-project basis. The go-to-market is enterprise field sales targeting major general contractors for high-rise buildings, mansions, stadiums, hospitals, and residential complexes. The firm operates exclusively in the domestic Japanese market across the Nagoya, Tokyo, and Osaka metropolitan areas. Marketing is limited to a corporate website and recruitment posts on indeed; there is no public pricing, no public revenue disclosure, no external funding, and no known partnerships. The president, Kamoi Takumi (鴨居 巧), runs the business as a privately-held, owner-managed enterprise.

Name

株式会社タック

Legal name

株式会社タック

Website

https://takrdn.co.jp

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

1–10 employees

Short description

株式会社タック is a Gifu-based, 10-employee specialty engineering firm providing precast concrete (PC) construction consulting, structural drawings, and proprietary construction fixtures and panels to Japan's largest general contractors for high-rise and large-scale building projects.

Ownership category

akta.pro rank

Product category

Precast Concrete (PC) Construction Engineering Services and Fixtures

NAICS

Prefabricated Metal Building and Component Manufacturing (332311), Architectural and Structural Metals Manufacturing (3323)

SIC

Concrete Products, Except Block & Brick (3272), Fabricated Structural Metal Products (3440)

akta.pro primary industry

Structural Steel Fabrication (IMADACAA)

akta.pro secondary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

Keywords

• Precast concrete construction
• PC construction consulting
• Construction fixture manufacturing
• PC panel manufacturing
• Construction drawing services

Headquarters

HQ city

Motosu (本巣市)

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. PC Construction Consulting: PC (Precast Concrete) construction consulting services providing technical expertise for precast concrete building projects. Services include PC conversion planning - decomposing RC structures like building blocks to plan drawings for PC implementation.
2. PC Construction Drawing Services: Creation of PC construction施工図 (implementation drawings) based on execution drawings, producing general drawings (plan, elevation, section, expansion, detail), component drawings, and structural calculations for PC construction projects.
3. PC Construction Fixtures Manufacturing and Sales: Manufacturing and sales of PC construction施工用冶具 (construction fixtures/tools) including RB catch templates, sleeve guides, sleeve catches, column main reinforcement templates, and PC scaffolding connection hardware.
4. PC Panel Manufacturing: Manufacturing of original Steel Tak Panel PC panels combining steel frames with wire mesh for enhanced rigidity and light weight.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

株式会社タック provides specialized engineering services and products for PC (Precast Concrete) building construction in Japan. Its core offerings are: (1) PC construction consulting including PC conversion planning that decomposes RC structures into PC component plans; (2) PC construction drawing services producing implementation drawings (general, component, and structural calculations); (3) manufacturing and sale of PC construction fixtures and tools (RB Catch Template, Sleeve Guide, Sleeve Catch series, Column Main Reinforcement Template, PC Scaffolding Connection Hardware); and (4) manufacturing of original Steel Tak Panel PC panels combining steel frame with wire mesh for rigidity and light weight.

Product overview

株式会社タックは、ビル建築向けPC（プレキャスト鉄筋コンクリート）工事専門の企业提供で、PC工事コンサルタント、PC工事施工図作成、PC工事施工用冶具の開発・製造販売、PCパネル製造を展開。製品ポートフォリオは7つの建設用治具・金物製品で構成され、柱主筋テンプレートの改良型であるRBキャッチ・テンプレート、スプライススリーブ固定用のスリーブガイドとスリーブキャッチシリーズ（通常型・ゼロタイプ）、PC足場つなぎ金物、そしてオリジナルPCパネルSteel Takパネルを提供。現場目線をコンセプトに、安全・低コスト・高品質なビル建築を目指している。

Differentiator

Problem solved

Functional benefit

Products and services

• PC Construction Consulting Service Technical consulting for PC (precast concrete) building projects, including PC conversion planning that decomposes RC structures into modular PC components and produces planning drawings for PC implementation. Provided to major Japanese general contractors on high-rise, residential, stadium, hospital, and landmark public building projects.
• PC Construction Drawing Service Creation of PC construction 施工図 (implementation drawings) based on execution drawings. Produces general drawings (plan, elevation, section, expansion, detail), component drawings, and structural calculations for PC construction projects of major Japanese general contractors.
• RB Catch Template (RBキャッチ・テンプレート) PC construction fixture that is an improved column main reinforcement template. Achieves approximately 1/3 the weight of the steel version and 75% cost reduction, with integrated and split types supporting D25, D29, D32, D35, D38, and D41 rebar sizes. Used by general contractors for accurate reinforcement positioning in PC column construction.
• Sleeve Guide (スリーブガイド) Splice sleeve vertical installation fixing jig for PC column construction. Lightweight, easy to install, enables simple PC column removal from mold, with steel base and bolt fixation compatible with Top's Joint and splice sleeves.
• Sleeve Catch Zero Type (スリーブキャッチ ゼロタイプ) Sleeve hanging and fixing jig for PC construction, compatible with splice sleeves from Japan Spicer Sleeve Co., threaded sleeves from Tokyo Steel Co., and Top's Joint products. The inner plate shifts to attach to the sleeve, then a presser plate rotates to fix.
• Sleeve Catch (スリーブキャッチ) All-steel sleeve fixing fixture using a butterfly plate mechanism that presses the sleeve tail section when the bolt is tightened. Enables perfect sleeve fixation with strong setting force, simple and reliable construction, and construction period reduction.
• Column Main Reinforcement Template (柱主筋テンプレート) Template for improving reinforcement positioning accuracy and facilitating work in PC construction. Features easy, accurate, reliable, and durable setting via a structure where reinforcement is inserted into the template and fixed with bolts.
• PC Scaffolding Connection Hardware (PC足場つなぎ金物) PC scaffolding connection hardware that extracts scaffolding connection parts from PC panels without post-repair. Uses a PC embedded insert with an attached Tanzak bolt with PL, connected to scaffolding via washer PL and high nuts; after completion, scaffolding is separated, the bolt is stored in the joint, and the joint is sealed.
• Steel Tak Panel (Steel Tak パネル) Original proprietary PC panel combining a steel frame with wire mesh and insulation insert to deliver enhanced rigidity without relying solely on concrete strength. Features 25-30% weight reduction, improved energy efficiency, shortened production process, and high dimensional accuracy for precise component positioning. Used in high-rise and other demanding PC construction projects.

Quantifiable outcome

• Steel Tak Panel achieves 25-30% weight reduction compared to conventional PC panels
• +2 more outcomes

Named customers10 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

Feature7 records

Scale indicators3 records

Broad incumbents

• Maeda Corporation: Major Japanese general contractor with precast concrete operations spanning civil, commercial, and high-rise projects. Comparable as another established Japanese contractor with internal PC engineering that competes for the same project scope Tak serves.
• Kajima Corporation: Super-zenecon with major precast and prefabrication operations for stadiums, stations, and large-scale developments. Comparable because Kajima operates PC engineering internally while also using Tak's services on large projects.
• Obayashi Corporation: Super-zenecon with structural PC and prefabrication operations across commercial, civil, and stadium projects. Comparable because Obayashi both competes for PC scope and is a Tak customer for consulting and fixture supply.
• Takenaka Corporation: Super-zenecon with extensive precast concrete capability for high-rise residential, hospital, and stadium projects. Comparable because Takenaka both performs PC engineering internally and purchases Tak's PC consulting and drawing services.
• Sumitomo Mitsui Construction: Major Japanese contractor with established precast concrete and structural engineering operations. Comparable because Sumitomo Mitsui both operates internal PC engineering and is a Tak customer for fixtures and drawing services.
• Taisei Corporation: One of Japan's five super-zenecon, with in-house PC engineering, drawing, and fabrication capabilities across high-rise, commercial, and infrastructure projects. Directly comparable because Taisei both competes for and consumes PC consulting/fixture services, and is one of Tak's named flagship customers.
• Toda Corporation: Major Japanese general contractor with significant PC structural capability for high-rise and civil projects. Comparable because Toda both insources PC scope and is a Tak customer for consulting and drawing services.
• Nishimatsu Construction: Major Japanese contractor with structural and civil PC capabilities, particularly in transportation and infrastructure. Comparable because Nishimatsu both insources PC scope and is a Tak customer for drawings and fixtures.
• Shimizu Corporation: Super-zenecon with deep in-house PC design, structural engineering, and prefabrication capabilities serving high-rise and commercial projects. Comparable to Tak because Shimizu both insources PC scope and is a Tak customer for drawings and fixtures.
• Daiwa House Industry: Japan's largest homebuilder and a major industrial contractor with industrial-scale prefabrication capabilities. Comparable because Daiwa House both runs PC construction operations internally and purchases PC services from Tak.

Market position

Strengths5 records

Weaknesses5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%82%BF%E3%83%83%E3%82%AF

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 株式会社タック