Taiyo Kiso Kogyo

Basic Information

Stock Code
1758
Industry
Construction
Category Detail
Construction & Civil Engineering
Prefecture
Aichi Prefecture
Establishment Year
May 1967
Listing Year
November 1997
Official Website
http://taiyoukiso.co.jp/
TSE Information
TSE Information
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Overview

Taiyo Kiso Kogyo is a regionally focused specialist company established in 1967 in the construction industry, with core operations in urban civil engineering, sewer pipeline works, and ground improvement.

Current Situation

Taiyo Kiso Kogyo achieved net sales of approximately 13.3 billion yen and ordinary income of about 660 million yen in the fiscal year ending January 2021, maintaining a stable earnings base. In its primary urban civil engineering sector, it has built a track record centered on sewer pipeline installation and residential ground improvement works, contributing to regional urban infrastructure development. With a base in Aichi Prefecture, it operates branches and sales offices nationwide and has established its Machinery Division headquarters in Tsushima City to enhance technological capabilities. Financially sound with net assets of about 7.3 billion yen and total assets of about 100.7 billion yen, major shareholders include the founder with a high ownership ratio. In recent years, it has pursued business expansion through collaboration with Meiwa Chiken Co., Ltd. and the opening of a Tohoku sales office, while focusing on technological development and quality management in special civil engineering. Demand for social infrastructure remains steady going forward, with strengthened efforts toward sustainable regional community building. It is also developing eco-friendly products and improving labor safety measures, positioning contributions to regional society as a key focus of its mid-to-long-term strategy. While differentiating itself from competitors, it maintains a stable growth trajectory.

Trivia

Interesting Facts

  • Founder Mitsuru Toyosumi established Toyosumi Group in 1958, later reorganized into Taiyo Kiso Kogyo.
  • Specializes in special civil engineering, leading ground improvement for urban infrastructure.
  • Provides regionally focused services through a nationwide branch network.
  • Has maintained a stable management base for over 50 years since founding.
  • One of the few specialists manufacturing and developing construction machinery in-house.
  • Founder family holds high ratio as major shareholders, supporting long-term management.
  • Headquartered in Nakagawa-ku, Aichi Prefecture, with branches nationwide.
  • Acquired Meiwa Chiken Co., Ltd. as subsidiary to strengthen technology.
  • Established firm position supporting regional public works.
  • Expanding business area with new Tohoku sales office.
  • Machinery Division headquarters in Tsushima City, advancing equipment development.
  • Extensive experience receiving major sewer infrastructure projects.
  • Offers integrated services from ground surveys to construction.
  • Focusing on advanced seismic reinforcement construction techniques.
  • Develops a variety of proprietary soil improvement agents.

Hidden Connections

  • Maintains long-term ongoing contracts with many municipalities for major sewer works.
  • Deep collaborative relationships with regional construction companies and homebuilders.
  • Technology partnerships with construction machinery manufacturers via Machinery Division.
  • Founder family deeply involved in management, maintaining stable leadership.
  • Collaborates with subsidiary Meiwa Chiken to strengthen ground survey technology.
  • Participates extensively in public works for regional disaster prevention infrastructure.
  • Aichi Bank as major shareholder, with strong ties to local financial institutions.
  • Contributed to Tohoku recovery through new Tohoku sales office post-Great East Japan Earthquake.

Future Outlook

Growth Drivers

  • Increasing demand for urban infrastructure renewal due to aging
  • Expansion of seismic reinforcement demand emphasizing earthquake measures
  • Spread of eco-construction techniques due to environmental regulations
  • Activation of regional civil engineering through local revitalization
  • Promotion of construction efficiency via ICT adoption
  • Increased orders from stabilized public investment
  • Demand for developing sustainable construction materials
  • Ground improvement demand in population-growing areas
  • Expansion of disaster recovery and prevention-related businesses
  • Growing market interest in energy-saving construction machinery
  • Expanding societal interest in zero-emission construction
  • Introduction of new methods in response to legal revisions

Strategic Goals

  • Expand market share by 20% in regional infrastructure works
  • Standardize sustainable, environmentally considerate construction techniques
  • Introduce energy-saving construction machinery models across all sites
  • Improve construction efficiency by 30% through ICT utilization
  • Further strengthen labor safety management systems
  • Enhance collaboration with regional communities and expand CSR activities
  • Increase female engineer ratio to 20%
  • Establish 50%+ recycled material usage rate
  • Promote digital transformation in management
  • Achieve 15% sales increase through new business creation

Business Segments

Urban Civil Engineering Works

Overview
Civil engineering business for developing urban public infrastructure. Centered on sewerage and power line works.
Competitiveness
High specialized technology and extensive construction track record
Customers
  • Municipalities
  • Construction companies
  • Public works contractors
  • Water and sewage operators
  • Power companies
Products
  • Sewer pipeline laying works
  • Road foundation reinforcement
  • Tunnel repair
  • Public infrastructure development
  • Seismic reinforcement works

Ground Improvement Works

Overview
Undertakes ground strengthening works for new homes and facilities.
Competitiveness
Strength in proprietary agent development and construction techniques
Customers
  • Homebuilders
  • Real estate developers
  • Construction companies
  • Agricultural cooperatives
  • Logistics facility operators
Products
  • Ground improvement design
  • Soft ground improvement
  • Grout injection
  • Soil stabilization treatment
  • Seismic reinforcement installation

Machinery Business and Development

Overview
Division promoting machinery manufacturing, maintenance, and new technology development.
Competitiveness
High-performance machinery manufacturing reflecting site needs
Customers
  • In-house construction divisions
  • Equipment manufacturers
  • Public infrastructure managers
  • Construction machinery rental companies
Products
  • Pile driving machinery
  • Ground investigation equipment
  • Grouting equipment
  • Soil improvement machinery
  • Machinery maintenance

Survey and Design Services

Overview
Provides safe design through ground and structural surveys and planning.
Competitiveness
Precise data analysis and extensive experience
Customers
  • Architectural design firms
  • Contractors
  • Government research institutions
  • Urban development companies
  • Geological research institutes
Products
  • Ground surveys
  • Design consulting
  • Seismic diagnostics
  • Environmental impact assessments
  • Quality control

Competitive Advantage

Strengths

  • Specialized technology in urban civil engineering and ground improvement
  • Long track record rooted in the region
  • Large number of qualified specialist personnel
  • Nationwide sales and branch network
  • Solid financial base and stable profitability
  • Diversified business including machinery manufacturing
  • Ongoing trust-based relationships with customers
  • Rapid construction and quality control systems
  • Promotion of eco-friendly technology adoption
  • Long-term technology R&D activities

Competitive Advantages

  • Strength in extensive specialized construction experience in special civil engineering
  • Superior customer response through regional focus
  • Proprietary ground improvement agents and construction techniques
  • Responds to regional needs via widespread branches
  • Improved work efficiency through in-house civil machinery development
  • Planned order intake based on stable customer base
  • High reliability from thorough compliance and safety management
  • Advances sustainable construction techniques reducing environmental impact
  • Continuous improvement in product and service quality
  • Management emphasizes long-term corporate value enhancement

Threats

  • Risk of reduced orders due to construction market fluctuations
  • Intensified competition from new entrants
  • Cost increases from stricter regulations
  • Burden of complying with rigorous environmental standards
  • Challenges in securing talent amid labor shortages
  • Delays and damages from natural disasters
  • Risk of sharp material price rises
  • Decline in competitiveness from lagging technological innovation
  • Reduced orders from public works budget cuts
  • Damage to corporate image from safety incidents

Innovations

2023: Development of High-Performance Ground Improvement Agents

Overview
Developed new agents that reduce environmental impact while improving strength.
Impact
Achieves both uniform construction quality and environmental compliance

2022: Introduction of IoT Devices for Ground Surveys

Overview
Adopted ground survey equipment capable of real-time data collection.
Impact
Improved survey accuracy and shortened construction periods

2021: Development of Energy-Saving Pile Drivers

Overview
Developed and introduced pile drivers that significantly reduce energy consumption.
Impact
Achieved construction cost reductions and lower environmental impact

2020: DX Promotion of Construction Management Systems

Overview
Introduced cloud-based construction management systems to improve operational efficiency.
Impact
Enhanced on-site work accuracy and faster information sharing

2024: Expansion of Environmentally Considerate Recycled Materials Usage

Overview
Expanding use of recycled materials from construction site waste.
Impact
Contributes to waste reduction and cost control

Sustainability

  • Development and adoption of low-environmental-impact construction techniques
  • Proper waste handling and reduction at construction sites
  • Participation in environmental conservation activities through regional collaboration
  • Enhanced employee occupational health and safety
  • Promotion of renewable energy utilization
  • Thorough pollution prevention measures
  • Advancement of CSR-conscious business activities
  • Employee environmental education and awareness programs
  • Formulation and implementation of sustainable procurement policies
  • ISO 14001 environmental management system certification