Tokyoto Ready Mixed Concrete Industry Trade Association

What Tokyoto Ready Mixed Concrete Industry Trade Association does

Tokyoto Ready Mixed Concrete Industry Trade Association (東京都生コンクリート工業組合, DBA: Tokyoto-Kouso) is a non-profit industrial trade association headquartered in Chuo-ku, Tokyo, established in 1974 as the Kanto Central Ready Mixed Concrete Industry Association and renamed in 1988 to its current form. It represents 46 member companies operating 51 ready-mixed concrete factories across the Tokyo metropolitan area (as of June 1, 2025), providing governance, quality assurance, and shared services to its membership. The association's primary value proposition is the Quality Management Audit System (品質管理監査制度) and the ㊜ mark certification, which is referenced in public works standard specifications and is effectively a prerequisite for supplying concrete to public sector construction projects in Tokyo.

The association's operational backbone includes the Joint Testing Center (共同試験場) in Funabashi, Chiba, accredited by the Japan Accreditation Board under ISO 17025, which provides members with shared material testing and quality verification services. It also runs industry education programs, produces video content for workforce recruitment and concrete-pavement advocacy, and operates within the National Ready-Mixed Concrete Industry Federation as part of the Kanto 1st District. Revenue is generated exclusively through membership fees and member contributions; the association does not sell concrete directly, set product prices, or publish financials.

Governance is led by Chairman Saitou Shoichi (理事長, Representative Director), who also heads the Kanto 1st District Regional Headquarters of the National Federation, while the Tokyo Quality Management Audit Conference is chaired by Hayakawa Mitsunori, a former professor at Tokyo Polytechnic University's Faculty of Engineering Architecture Department. The association is affiliated with the National Ready-Mixed Concrete Industry Federation and the National Ready-Mixed Concrete Cooperative Federation, and maintains mutual relationships with the Kanagawa, Saitama, and Chiba prefectural associations.

Name

Tokyoto Ready Mixed Concrete Industry Trade Association

Legal name

東京都生コンクリート工業組合

Website

https://tokyo-readyconkouso.jp

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

51–100 employees

Short description

Tokyoto Ready Mixed Concrete Industry Trade Association is a non-profit trade association in Tokyo representing 46 ready-mixed concrete manufacturers operating 51 factories, providing quality audit certification (㊜ mark), ISO 17025-accredited joint testing, and industry education for the Tokyo metropolitan area construction sector.

Ownership category

akta.pro rank

Product category

Construction Materials Trade Association

NAICS

Ready-Mix Concrete Manufacturing (32732), Cement and Concrete Product Manufacturing (3273)

SIC

Concrete Products, Except Block & Brick (3272)

akta.pro primary industry

Ready-Mix Concrete Production & Delivery (IMADAAAA)

Keywords

• Ready-mixed concrete
• Quality management audits
• Construction materials
• Industrial trade association
• Concrete certification

Headquarters

HQ city

Hatchobori

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Membership fees and contributions: The association collects membership fees and contributions from its member companies to fund quality control audits, joint testing services, education and training programs, and collective purchasing of raw materials.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Tokyoto Ready Mixed Concrete Industry Trade Association is a member-owned industrial trade association representing 46 ready-mixed concrete manufacturing companies operating 51 factories in the Tokyo metropolitan area. It conducts annual third-party quality management audits, issues the ㊜ (J-mark) factory certification, and operates a JAB-accredited joint testing center (ISO 17025) that provides material testing and quality assurance services to its member companies.

Product overview

The Tokyoto Ready Mixed Concrete Industry Trade Association is a single unified offering centered on ready-mixed concrete (生コンクリート) production and quality assurance. The core product is ready-mixed concrete manufactured by member companies. The association provides quality management auditing services through the Tokyo Ready-Mixed Concrete Quality Management Audit Conference, joint testing services at their shared testing facility (ISO 17025 accredited), and educational resources for industry professionals. All activities are coordinated through member factories to ensure quality and reliability.

Differentiator

Problem solved

Functional benefit

Products and services

• Ready-Mixed Concrete (生コンクリート)
• Quality Management Audit Certification (㊜ Mark Approval)
• Joint Testing Center Services (共同試験場)
• Quality Management Audit Conference Services (品質管理監査会議)

Named customers1 record

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Six partnerships are on record, tiered core and minor.

• National Ready-Mixed Concrete Industry Federation (全国生コンクリート工業組合連合会)coreStrategic or Co-development Partner · 25 January 1974National federation that establishes unified quality control standards, coordinates industry-wide initiatives, and represents member associations at the national level. The Tokyo association is part of the Kanto 1st District Regional Headquarters.
• Kanagawa Ready-Mixed Concrete Industry Association (神奈川県生コンクリート工業組合)minorStrategic or Co-development PartnerRegional association in Kanagawa Prefecture within the Kanto 1st District. Located in Yokohama with telephone contact available.
• Saitama Ready-Mixed Concrete Industry Association (埼玉県生コンクリート工業組合)minorStrategic or Co-development PartnerRegional association in Saitama Prefecture within the Kanto 1st District. Located in Saitama city.
• Chiba Ready-Mixed Concrete Industry Association (千葉県生コンクリート工業組合)minorStrategic or Co-development PartnerRegional association in Chiba Prefecture within the Kanto 1st District. Located in Chiba city.
• Tokyo District Ready-Mixed Concrete Cooperative (東京地区生コンクリート協同組合)minorStrategic or Co-development PartnerA cooperative organization of ready-mixed concrete companies in the Tokyo area, operating alongside the industry association.
• National Ready-Mixed Concrete Cooperative Federation (全国生コンクリート協同組合連合会)coreStrategic or Co-development PartnerNational federation for cooperative organizations in the ready-mixed concrete industry, providing guidance and coordination for member cooperatives.

Scale indicators4 records

Recent moves9 records

Expansion highlights3 records

Direct peers

• Saitama Ready Mixed Concrete Industry Association: Sister regional industry association within the Kanto 1st District serving ready-mixed concrete manufacturers in Saitama Prefecture. Provides directly comparable trade association, audit, and member support services.
• Tokyo District Ready-Mixed Concrete Cooperative: A cooperative organization of ready-mixed concrete companies operating alongside the Tokyo industry association, providing collective procurement and shared services to its members in the same geographic market.
• Kanagawa Ready Mixed Concrete Industry Association: Sister regional industry association within the same Kanto 1st District, serving ready-mixed concrete manufacturers in Kanagawa Prefecture. Operates an analogous trade association model with quality audit and member services.
• National Ready Mixed Concrete Industry Federation: The national umbrella federation that establishes unified quality control audit standards and coordinates industry-wide initiatives. It is the parent body that the Tokyo association belongs to and provides comparable trade association services at the national level.
• Chiba Ready Mixed Concrete Industry Association: Sister regional industry association within the Kanto 1st District serving ready-mixed concrete manufacturers in Chiba Prefecture. Offers the same trade association and quality audit structure to its member companies.

Broad incumbents

• Japan Cement Association: Trade association representing cement manufacturers — the upstream input to ready-mixed concrete. Operates a similar industry-body model and shares overlapping membership, quality standards, and policy advocacy functions.
• Japan Concrete Institute: National academic and standards organization covering concrete engineering, including ready-mix concrete. Less specialized than the trade association but plays a comparable role in setting quality standards referenced in public works specifications.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Tokyoto Ready Mixed Concrete Industry Trade Association