Sanshin Kogyo

Name

Sanshin Kogyo

Legal name

三進工業株式会社

Website

https://sanshinj.co.jp

Company type

Private

Founded year

1954

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Industrial Plant Equipment Manufacturing

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Oil and Gas Field Machinery and Equipment Manufacturing (333132), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Oil & Gas Field Machinery & Equipment (3533), Construction Machinery & Equip (3531)

akta.pro primary industry

Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF)

akta.pro secondary industries

Chillers, Boilers & Central Plant Operations (BPABACAG), HVAC & Refrigeration Contracting (IMAFALAB)

Keywords

• Pressure vessel fabrication
• Plant construction services
• Heat exchanger manufacturing
• Waste-to-energy plant construction
• Industrial steel structures

Headquarters

HQ city

Kanagawa

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Manufacturing of Fabricated Metal Products: Pressure vessels, heat exchangers, towers, tanks, chimneys, gates, cranes, piping prefabrication, monuments, various relubrication work, steel structures, and frames. Also includes nuclear-related equipment.
2. Construction Work: Plant construction including environmental equipment (waste incineration, biomass power, water/sewage), steel structures, storage tanks, and industrial machinery installation and maintenance
3. Valve Maintenance and Labor Dispatch: Valve maintenance services (safety valves, control valves, general valves, level gauges) and worker dispatch services

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Sanshin Kogyo operates two divisions: a Manufacturing Division that fabricates pressure vessels, heat exchangers, environmental equipment, storage tanks, and steel structures in compliance with the Electrical Utility Law, High-Pressure Gas Safety Law, and other Japanese regulations; and a Construction Division that installs boilers, turbines, and ancillary equipment at waste incineration plants, biomass power stations, water treatment facilities, dams, and industrial plants. The company also performs on-site repair, retubing, and maintenance of heat exchangers and valves, and fabricates large-scale public art monuments.

Product overview

Sanshin Kogyo operates two main divisions: a Manufacturing Division (製造部) producing pressure vessels, heat exchangers, and environmental equipment, and a Construction Division (建設本部) providing plant installation and maintenance services. The Manufacturing Division specializes in fabrication of pressure containers under electrical utility law and high-pressure gas safety regulations, with approximately 200 welding method certifications. Products include pressure vessels (蒸気だめ, フラッシュタンク), heat exchangers (熱交換器, エアフィンクーラー), environmental equipment for waste incineration plants, storage tanks, and large-scale monuments. The Construction Division handles equipment installation for waste-to-energy plants, biomass power generation, water treatment facilities, dams, and industrial plants, with over 2,000 completed projects. The company also offers machine repair and retubing services, leveraging in-house welding training facilities and a dedicated equipment center.

Differentiator

Problem solved

Functional benefit

Products and services

• Pressure Vessels (圧力容器) High-pressure containers including steam accumulators, flash tanks, and gas circuit breakers, manufactured in compliance with the Electrical Utility Law and High-Pressure Gas Safety Law for power generation and industrial applications.
• Heat Exchangers (熱交換器) Shell-and-tube and finned-tube heat exchangers, including air preheaters and ammonia vaporizers, for waste incineration plants, petroleum refineries, and biomass power generation facilities.
• Environmental Equipment (環境装置) Equipment for waste-to-energy and incineration plants including combustion systems, waste heat boilers, turbine-generators, condensate coolers, flue gas treatment systems, feeding devices, and boiler panels.
• Plant Construction Services (プラント工事) Installation and construction services for industrial plants including waste incineration facilities, biomass power plants, water treatment facilities, dams, water gates, tunnels, and highway ventilation systems.
• Monuments and Art Sculptures (モニュメント) Large-scale metal sculptures and monuments created for public spaces, museums, and government buildings using welding and fabrication techniques.
• Machine Repair and Retubing (機器の補修) Repair and retubing services for heat exchangers and condensers, including on-site retubing with custom-designed extraction tools for petroleum refineries and waste incineration plants.
• Steel Structures (鋼構造物) Large-scale steel structures including high-rise chimneys, exhaust stacks, transmission towers, large-diameter water pipes, bridges, water gates, and pier reinforcement.
• Storage Tanks (貯槽) LNG, LPG underground and above-ground storage tanks, petroleum storage, fermentation and storage tanks, elevated water tanks, reservoirs, pressure regulation tanks, and various silos.
• Cone Roof Tanks (コーンルーフタンク) Large-scale cylindrical storage tanks with cone-shaped roofs for storing liquids such as heavy oil, water, and light oil, used in demonstration plants for hydrogen storage applications.
• Industrial Machinery (産業機械) Iron manufacturing equipment including continuous casting, rolling, sintering, hot blast stoves, and heat treatment furnaces; thermal power generation equipment; plate glass heat treatment equipment; presses; various cranes; and nuclear-related equipment.

Quantifiable outcome

• 2,000+ plant engineering projects completed since 1954
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered core and major.

• Tsukishima Holdings Corporation (月島ホールディングス株式会社)coreOthers · 1 July 2017Tsukishima Holdings became the parent company of Sanshin Kogyo in July 2017. Sanshin Kogyo operates as a subsidiary within the Tsukishima Holdings group of companies specializing in plant engineering and environmental equipment.
• Tsukishima Kikai Corporation (月島機械株式会社)coreOthersTsukishima Kikai is a group company and partner within the Tsukishima Holdings network. Both companies collaborate on plant engineering and environmental equipment projects.
• Cooperative Partner Companies (協力会社)majorImplementation/ SI/ Consulting PartnerApproximately 100 partner companies engaged through formal partnership contracts for plant engineering construction work. Includes specialized trades such as scaffolding (鳶工), steel work (鉄工), finishing (仕上げ工), and welding (焊接工).

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• IHI Corporation: Major heavy-industry group with process plant and boiler manufacturing capabilities that overlap Sanshin's heat exchangers, pressure vessel, and industrial machinery products across a much larger portfolio.
• Sumitomo Heavy Industries, Ltd. Diversified industrial manufacturer with process plant, power, and material handling capabilities — overlapping Sanshin's industrial machinery and plant installation work at a much larger scale.
• Ebara Corporation: Large diversified manufacturer whose environmental plant business produces pumps, blowers, and waste-treatment systems; a current Sanshin customer (per select_customers) and broader-incumbent peer in environmental plant equipment.
• JFE Engineering Corporation: A major customer of Sanshin Kogyo and a broader engineering and EPC incumbent serving environmental energy and steel-mill process plant markets; overlaps Sanshin's industrial machinery and plant construction work at a much larger scale.
• Mitsubishi Heavy Industries, Ltd. Japan's largest heavy-industrial conglomerate, serving power generation, iron and steel, and industrial machinery markets that overlap heavily with Sanshin's industrial machinery and pressure-vessel fabrication business.

Direct peers

• Hitachi Zosen Corporation: Major Japanese EPC contractor with pressure vessel fabrication, biomass and waste-to-energy plant construction — directly overlapping Sanshin's Manufacturing and Construction Divisions on industrial and waste-energy projects.
• Tsukishima Kikai Co., Ltd. Sanshin Kogyo's parent company (Tsukishima Holdings group) and direct group-level peer, specializing in plant engineering and environmental equipment for industrial and waste-to-energy clients — the closest comparable business profile to Sanshin Kogyo.
• Takuma Corporation: Japan's leading waste-to-energy plant EPC and equipment manufacturer, specializing in stoker furnaces, boilers, and flue gas treatment — directly comparable to Sanshin Kogyo's environmental equipment product line and waste incineration plant construction work.
• Kobelco (Kobe Steel, Ltd.): Manufacturer of industrial machinery and fabricated pressure equipment, with a comparable fabrication capability across process plant, storage tanks, and large welded structures — a leading direct competitor in heavy industrial fabrication.

Emerging players

• JFE Plant Engineering Co., Ltd. Specialized plant engineering services subsidiary of JFE Group, providing plant construction, maintenance, and equipment installation comparable to Sanshin Kogyo's Construction Division but at smaller scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Sanshin Kogyo