DMW

What DMW does

DMW Corporation (株式会社電業社機械製作所, ticker TYO:6365) is a Tokyo-headquartered Japanese industrial equipment manufacturer that designs, engineers, and produces custom-built pumps, blowers/fans, valves, and proprietary energy recovery devices for water infrastructure, power generation, oil & gas, petrochemical, steel, and seawater desalination applications. The company traces its origins to the Dengyosha Manufacturing Department founded in 1910, was restructured into its current form in 1955 (separating from Toshiba), and listed on the Tokyo Stock Exchange in October 1961.

The core product platform is organized around three technology families: a broad industrial pump lineup spanning horizontal split-case double suction volute pumps (MODEL DF), horizontal multi-stage pumps (MODEL DMF, API 610-10th compliant), vertical mixed-flow/axial flow pumps (MODEL VPF/VPS), API 610 single-suction process pumps (MODEL SMKP/ISF), and reciprocating plunger pumps (MODEL HR); a blower/fan portfolio led by the AM-Turbo® multi-stage turbo blower with aluminum-alloy impellers; and the proprietary DeROs® family of piston-type energy recovery devices that achieve up to 99.7% energy recovery efficiency for RO-membrane seawater desalination, extended in December 2024 to the lower-pressure DeROs-E™ variant for general water treatment. Manufacturing is concentrated at the Mishima plant in Shizuoka Prefecture, Japan, with a second plant at MIDC Chakan Phase II near Pune operated by wholly-owned subsidiary DMW Corporation India Pvt. Ltd. (established 2014, commercial production from 2017) and a service subsidiary DKK (電業社工事株式会社) for aftermarket installation and maintenance.

DMW operates a sales-led B2B go-to-market with custom-engineered, one-time equipment sales priced via direct quotation, complemented by aftermarket service revenue through DKK. End customers include Japanese municipal water utilities (Tokyo, Osaka, Hokkaido prefectures), the Tokyo Electric Power Group, major Indian state-owned oil and gas companies (ONGC, IOCL, BPCL, GAIL, HPCL), Saudi Arabian desalination plants, and EPC contractors such as L&T and Toyo Engineering. Geographic reach spans Japan, India, China, Singapore, the UAE, and Saudi Arabia, with active expansion plans in South Asia, the Middle East, and Africa supported by the BPEA Credit INR 250 crore growth capital investment of July 2024.

Name

DMW

Legal name

株式会社電業社機械製作所

Website

https://dmw.co.jp

Company type

Public

Founded year

1910

Operating status

Operating

Headcount range

501–1,000 employees

Short description

DMW Corporation is a 110-year-old Japanese industrial OEM that designs and manufactures custom pumps, blowers, valves, and proprietary energy-recovery devices for municipal water, power, oil & gas, and seawater desalination customers across Japan, India, and the Middle East.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Pump Sales: Custom-engineered centrifugal, axial, and mixed-flow pumps sold to infrastructure operators, EPC contractors, and plant owners. Revenue generated from equipment sales with long lead times typical of heavy industrial machinery.
2. Blower/Fan Sales: Turbo blowers, centrifugal fans, and axial fans for tunnel ventilation, sewage aeration, steel mills, and industrial processes.
3. Energy Recovery Device Sales: DeROs® and DeROs-E™ energy recovery devices for seawater desalination and water treatment plants. Includes pump packages as part of system solutions.
4. Valve Sales: Howell bang valves for dam discharge, float valves for water supply facilities, and cone valves for flow control and shutoff applications.
5. Aftermarket Services: Technical support, maintenance, inspection, and parts supply through subsidiary DKK (電業社工事株式会社) for installed equipment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

DMW Corporation manufactures and sells custom-engineered industrial pumps, blowers, fans, valves, and energy recovery devices for water infrastructure, oil & gas, petrochemical, power generation, seawater desalination, steel, and tunnel ventilation applications. The company's flagship proprietary products are the DeROs® and DeROs-E™ energy recovery devices for RO membrane desalination and water treatment, which achieve up to 99.7% energy recovery efficiency. Products are custom-engineered to order based on specific application requirements and sold through direct B2B sales to plant operators and EPC contractors.

Product overview

DMW Corporation manufactures industrial pumps, blowers, valves, and energy recovery devices with over 110 years of experience. The core product lineup centers on the DeROs® and DeROs-E™ energy recovery devices for RO membrane desalination systems, complemented by comprehensive pump families (MODEL DF, DMF, SMKP, VPF/VPS, BMT, HR) and blower systems (AM-Turbo®, FT2B, BTnP, BHOP, U-Fan, BTD, FJAO). Related equipment includes flow meters (DELTA400), oil mist separators (MSS-α), check valves (AA Check), and gap sensors for pump monitoring. Products serve water supply, sewage, drainage, power generation, oil & gas, petrochemical, steel, fertilizer, desalination, geothermal, tunnel ventilation, and agricultural irrigation applications. Manufacturing is centered at the Mishima facility in Shizuoka Prefecture, Japan.

Differentiator

Problem solved

Functional benefit

Brands

• DeROs: Energy recovery device for RO membrane seawater desalination systems
• DeROs-E
• AM-Turbo
• U-Fan

Products and services

• DeROs® Energy Recovery Device Piston-type energy recovery device for RO membrane seawater desalination systems that recovers pressure energy from concentrated seawater to reduce high-pressure pump power consumption. Achieves maximum 99.7% energy recovery efficiency with less than 1% mixing, using cylinder and switching valve technology to transfer pressure energy from high-pressure concentrated seawater to low-pressure intake seawater. Sold as part of pump packages for desalination plant operators and EPC contractors.
• DeROs-E™ Energy Recovery Device Low-pressure energy recovery device optimized for water treatment applications using RO membranes. Features evolution, extreme efficiency, economical operation, and environmental friendliness. Handles concentrated water pressure up to 3.5MPa and flow rates of 5-20m3/h. Used for industrial water, wastewater, and low-concentration saltwater treatment. Patented technology applied from the original DeROs® product. Awarded the 2025 METI Minister of Economy, Trade and Industry Award for energy efficiency.
• Industrial Pumps Comprehensive range of custom-engineered industrial pumps including horizontal/vertical centrifugal pumps, multi-stage pumps (MODEL DMF, API 610 compliant), axial flow pumps (MODEL VPS), mixed flow pumps (MODEL VPF), single suction volute pumps (MODEL SMKP/ISF, API 610), horizontal split-case double suction volute pumps (MODEL DF), and horizontal reciprocating plunger pumps (MODEL HR, API 674). Used for water supply, drainage, sewage, power plants, oil & gas, petrochemical, steel, and seawater desalination applications.
• Industrial Blowers and Fans Industrial blowers and fans including AM-Turbo® multi-stage turbo blower (aluminum alloy impeller with rolling bearings, winner of 2017 METI energy conservation award), MODEL FT2B single suction two-stage centrifugal fans, jet fans for tunnel ventilation, U-Fan high-efficiency centrifugal fans, and axial flow fans. Used for sewage treatment aeration, tunnel ventilation and emergency smoke extraction, steel plant gas recovery (COG/BFG/LDG), petroleum/petrochemical processes, and boiler/heating furnace applications.
• Industrial Valves Industrial valves including Howell-Bunger valves for dam discharge applications, float (ロート) valves for water supply facilities, and cone valves for flow control and shutoff applications. Manufactured for dam infrastructure and municipal water supply systems.
• Eco-Turbine (Pump-Reversed Water Turbine) Pump-reversed water turbine for small-scale hydroelectric power generation. Manufactured by group company Eco-advance Inc. Used for small hydro power applications to generate electricity from water flow.
• Aftermarket Installation and Maintenance Services Technical support, maintenance, inspection, parts supply, engineering, and installation services for installed DMW pump and fan equipment. Delivered through wholly-owned subsidiary Dengyosha Kouji (電業社工事株式会社 / DKK), which has operated as a wholly-owned subsidiary since 1979.

Quantifiable outcome

• DeROs® achieves energy recovery efficiency up to 99.7% with mixing below 1%
• +3 more outcomes

Named customers12 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Flowserve Corporation: Flowserve is a global leader in industrial pumps and flow control, with matching API 610 process pumps, multi-stage pumps, and valves for oil & gas, power, and water applications. DMW's API 610 product line (DMF, SMKP) and Indian subsidiary compete directly with Flowserve in Indian oil PSUs and global EPC projects.
• Ebara Corporation: Ebara is a Japanese industrial pump manufacturer with a similar water infrastructure, oil & gas, and custom-engineered pump portfolio. Both companies serve Japanese municipal water/sewerage, refining/petrochemical, and power generation customers with multistage, centrifugal, and axial flow pumps making them the most direct peers in the Japanese market.
• KSB SE & Co. KGaA: KSB is a German global pump and valve manufacturer with comparable product lines in centrifugal, multistage, and submersible pumps for water/wastewater, energy, and industrial markets. KSB competes with DMW in international water infrastructure and oil & gas projects.
• Torishima Pump Mfg. Co., Ltd. Torishima is a Japanese pump manufacturer most directly comparable to DMW in scale and product portfolio, focused on centrifugal pumps for power plants, desalination, oil & gas, and water infrastructure. Both are headquartered in Japan and compete for the same domestic municipal and industrial customers.
• Energy Recovery, Inc. Energy Recovery is the most direct competitor to DMW's DeROs® and DeROs-E™ energy recovery devices for RO membrane desalination. Both companies target the same global desalination EPC market with proprietary pressure-exchange technology, making this a head-to-head competitor in DMW's most differentiated product line.
• Grundfos Holding A/S: Grundfos is a global Danish pump manufacturer focused on water infrastructure, industrial pumps, and energy-efficient solutions. Both companies serve municipal water/wastewater and industrial customers with centrifugal and multistage pumps, with a shared focus on energy efficiency.
• Sulzer Ltd: Sulzer is a Swiss global pump manufacturer with comparable API 610 process pumps, multistage pumps, and energy recovery equipment for water, oil & gas, and power generation. Sulzer's energy recovery product line is a direct competitor to DMW's DeROs® in desalination projects.
• Howden Group (Chart Industries): Howden is a global manufacturer of industrial fans, blowers, and compressors, with comparable products to DMW's AM-Turbo® multi-stage turbo blowers and tunnel ventilation jet fans. Both serve sewage aeration, steel plant gas handling, and tunnel ventilation applications.

Broad incumbents

• Kubota Corporation: Kubota is a Japanese industrial conglomerate with a comparable pump segment (water infrastructure, agricultural irrigation, sewage) and broader agriculture/construction equipment portfolio. Its pump division competes directly with DMW in Japanese municipal water and agricultural applications.
• Atlas Copco AB: Atlas Copco is a broad industrial equipment incumbent with overlapping compressors and blowers competing with DMW's turbo blowers in sewage treatment and industrial applications. While broader in scope (vacuum, compressors, tools), it competes directly in the turbo blower segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dmw-corporation-india-private-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 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 DMW