What Asahikogyo does

Asahikogyo Co. Ltd. (朝日工業株式会社) is a Japanese industrial construction and engineering firm founded in 1950 (with origins dating to 1931 in Manchuria) and headquartered in Hiroshima, with a secondary headquarters in Tokyo established in April 2022. The company provides integrated services spanning new construction, renovation, and ongoing maintenance for industrial plant operators across four core service lines: power generation equipment (boilers, turbines, cogeneration, biomass plants), petrochemical and energy plant equipment (compressors, reactors, piping), piping and welding fabrication, and environmental equipment (waste processing plants, eco-cement facilities, flue gas desulfurization). It claims a top-class domestic share in Japan for ethylene compressor installation and maintenance within petrochemical plants, supported by specialized certifications including civil product certification GPC-084 for welded electrical equipment components at its Yokkaichi facility.

The company serves an enterprise customer base concentrated in heavy industry, including petrochemical majors (Asahi Kasei, Idemitsu Kosan, ENEOS, Showa Yokkaichi Petroleum, Sumitomo Chemical, Mitsubishi Chemical, JX Metals), power generators (J-POWER, Seibu Oil, Toa Oil), manufacturers (Kawasaki Heavy Industries, Mitsubishi Heavy Industries), pulp and paper (Oji Paper, Chuetsu Pulp), food processors (Ajinomoto, Nihon Shokuhin Kako), engineering contractors (Nippon Steel Engineering, Toyo Engineering), and environmental operators (Tokyo Tama Eco Cement), as well as municipal governments. The company employs approximately 300 staff including part-time and temporary workers and operates a network of nine offices covering all major Japanese industrial zones (Keihin, Keiyo, Chita, Yokkaichi, Setouchi, Hiroshima, Oita, and southern Kyushu).

Asahikogyo is a privately held, closely held company with registered capital of 98 million JPY. Its business model combines project-based construction revenue (one-time contracts for new build and renovation) with recurring maintenance and on-site technician placement revenue from long-term industrial customers. Distribution is exclusively direct enterprise field sales with no channel intermediaries; marketing activities are limited to recruitment (Rikunavi, Mynavi) and a Sanfrecce Hiroshima sports sponsorship. Reported revenue was approximately 12 billion JPY as of the April 2025 fiscal year, and representative director leadership transitioned in July 2023 with the appointment of Katsuhiro Uchiyama.

Name

Asahikogyo

Legal name

朝日工業株式会社 (Asahikogyo Co.Ltd.)

Website

https://asahi-kogyo.co.jp

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

251–500 employees

Short description

Asahikogyo is a Japanese privately held industrial construction and maintenance contractor providing integrated services (construction, renovation, ongoing maintenance) for power generation, petrochemical, manufacturing, and environmental plant operators across Japan through a nine-office network, with top-class domestic share in ethylene compressor installation.

Ownership category

akta.pro rank

Product category

Industrial Plant Construction and Maintenance Services

NAICS

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (8113), Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (811310), Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), Motors & Generators (3621), Electrical Industrial Apparatus (3620), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Mechanical, Electrical & Piping Installation (MEP) (EUAKAAAG)

akta.pro secondary industries

O&M, Upgrades & Refurbishment of T&D Assets (Reconductoring, Rebuilds) (IMAFAHAM), Electrical Systems Maintenance (LV/MV, Switchgear, UPS) (BPABACAC)

Keywords

• Industrial construction services
• Plant maintenance services
• Power generation equipment
• Petrochemical plant construction
• Welding fabrication services

Headquarters

HQ city

Hiroshima

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Plant Construction Services: Revenue generated from construction projects for power generation plants, petrochemical plants, and environmental facilities. This includes new construction, renovation, and modification work.
2. Maintenance and Repair Services: Ongoing maintenance contracts and repair services for operating plants. Technicians are stationed at customer sites for daily maintenance and inspections, providing recurring service revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Asahikogyo provides integrated industrial construction, renovation, and maintenance services for power generation equipment, petrochemical and chemical plants, industrial piping systems, and environmental facilities (including waste processing and eco-cement plants). The company delivers on-site engineering, fabrication, installation, and long-term technician-staffed maintenance across its nationwide network of business offices in Japan's major industrial zones.

Product overview

Asahikogyo is a traditional construction and engineering firm offering integrated services from new construction to renovation and maintenance. The company operates four core service lines: power generation equipment (boilers, turbines, biomass/cogeneration systems), plant equipment (petroleum, chemical, and paper plants), plumbing/piping systems (pipe fabrication, welding, on-site installation), and environmental equipment (waste processing, recycling, eco-cement facilities). All services are delivered through the company's network of eight business offices across Japan, providing continuous one-stop support for industrial infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Power Generation Equipment Services (発電設備) Installation, renovation, and maintenance services for boilers, turbines, and power generation equipment supporting cogeneration and biomass power facilities to ensure stable power supply for utility and industrial customers.
• Plant Equipment Services (プラント設備) Construction, renovation, and maintenance services for petroleum refining, petrochemical, chemical, and paper manufacturing plants, including specialized ethylene compressor installation and maintenance with on-site daily inspections.
• Piping Equipment Services (配管設備) Industrial pipe manufacturing, on-site installation, welding, duct work, and maintenance services for plant piping systems, backed by certified welding factories and civil product certification for thermal power equipment welds.
• Environmental Equipment Services (環境設備) Installation and maintenance of environmental protection equipment including flue gas desulfurization systems, dust collection, wastewater treatment, waste processing plants, and eco-cement production facilities.

Quantifiable outcome

• Ethylene compressor installation and maintenance market share described as top class domestically in Japan

Named customers22 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Sanfrecce HiroshimaminorOthersOfficial sponsor of the professional soccer team. Used for brand visibility and community engagement in the Hiroshima region.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• IHI Corporation: Major Japanese engineering conglomerate with plant construction, power systems, and turbomachinery businesses. Comparable in turbomachinery and power plant work but operates at much larger scale across multiple industries.
• Sumitomo Heavy Industries, Ltd. Large Japanese industrial conglomerate with plant construction, power systems, and industrial machinery divisions. Overlaps with Asahikogyo in power generation equipment and industrial plant services as part of a much broader portfolio.
• Mitsubishi Heavy Industries, Ltd. Major Japanese industrial conglomerate with power systems, turbomachinery, and plant engineering divisions. Disclosed customer of Asahikogyo, with significant overlap in power generation equipment and industrial plant services.
• Kawasaki Heavy Industries, Ltd. Major Japanese industrial conglomerate with energy, shipbuilding, and plant engineering businesses. Disclosed customer of Asahikogyo, with overlap in industrial plant equipment and turbomachinery markets.

Direct peers

• Hitachi Zosen Corporation: Major Japanese plant constructor and environmental equipment manufacturer with businesses in waste-to-energy plants, flue gas treatment, and industrial machinery. Comparable to Asahikogyo's environmental equipment and plant construction lines.
• Chiyoda Corporation: Major Japanese EPC contractor specializing in LNG, petrochemical, and power plant projects. Comparable to Asahikogyo's plant construction business at much larger project scale.
• Toyo Engineering Corporation: Japanese EPC contractor focused on petrochemical, oil & gas, and power projects. Direct overlap with Asahikogyo's ethylene and petrochemical plant construction work, but at significantly larger scale.
• JGC Holdings Corporation: One of Japan's largest EPC contractors for oil & gas, petrochemical, and power generation projects globally. Comparable in petrochemical plant construction and power equipment work, but at materially larger scale and with international reach.
• Takuma Co., Ltd. Japanese plant construction and environmental facilities company building waste incineration plants, water treatment facilities, and power generation equipment. Direct overlap with Asahikogyo in environmental equipment and power plant construction/maintenance.
• Tsukishima Kikai Co., Ltd. Japanese industrial machinery and plant engineering company serving chemical, steel, and environmental markets. Comparable in industrial plant equipment and engineering services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Asahikogyo