MEIWA INDUSTRIES

What MEIWA INDUSTRIES does

Meiwa Industries Co., Ltd. (明和工業株式会社), founded in 1969 in Niigata, Japan, is a water infrastructure manufacturer operating as a wholly-owned subsidiary of Meiwa Group Corporation, a holding company established in November 2024 that consolidates acquisitions made since 2021. The company designs, manufactures, and installs stainless steel pipeline systems, air valves, water bridges (PPLP), and emergency water infrastructure; its flagship Glorajoint quick-connect pipe coupling system and REPCS temporary pipeline rental business are used by over 85% of Japanese municipalities. Operating from approximately 20 nationwide bases with seven REPCS rental depots, Meiwa runs a self-completed manufacturing-to-installation model serving primarily municipal water bureaus, construction firms, and agricultural cooperatives.

The product portfolio extends into disaster preparedness (Rescue Tap, Rescue Tank, Safety Tower emergency storage), renewable energy (Soralect solar carport, Soleil Port cycle port, Solaterasu/Solarest solar pavilions), and a pilot hydrogen energy storage system integrating photovoltaic generation with fuel-cell reconversion via partners Takasago Thermal Engineering and Panasonic. The business model combines one-time product sales of manufactured equipment, recurring rental income from the REPCS fleet, project-based engineering and construction services, and BtoC branded upcycled consumer products (e.g., Metareal stainless steel lure via crowdfunding). Recent acquisitions of Daitec, Daito Sangyo, and Takumi Densetsu extend the group into sanitary process piping, conveyance equipment, and electrical installation, while certifications including fire-fighting approvals, JWWA B 137, NETIS VE, and Made in Niigata Gold Technology underpin its position in regulated municipal and construction procurement channels.

Name

MEIWA INDUSTRIES

Legal name

明和工業株式会社

Website

https://meiwajp.com

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

251–500 employees

Short description

Meiwa Industries is a Japanese water infrastructure manufacturer and wholly-owned subsidiary of Meiwa Group Corporation that designs, produces, and installs stainless steel pipeline systems, the proprietary Glorajoint coupling, REPCS temporary pipelines, disaster-readiness products, and renewable energy systems for municipal water bureaus, construction firms, and agricultural customers nationwide.

Ownership category

akta.pro rank

Product category

Water Infrastructure Equipment

NAICS

Water Supply and Irrigation Systems (22131), Electric Power Generation, Transmission and Distribution (2211), Electrical Equipment Manufacturing (3353)

SIC

Water Supply (4941), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Steel Pipe & Tubes (3317), Electrical Industrial Apparatus (3620), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industries

Water Treatment Plant Construction (Drinking Water) (IMAFAGAA), Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks) (EUAEADAG), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Water infrastructure manufacturing
• Stainless steel pipe fittings
• Temporary pipeline rental
• Solar carport systems
• Emergency water supply equipment

Headquarters

HQ city

Niigata

HQ country

Japan

HQ region

Asia

Offices10 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. 製造事業（水道資機材製造）: 水管橋・空気弁・加工管・ストレーナー・継手などのステンレス製水道資機材を製造販売。フランジ加工・ロールグルービング加工など多様な加工に対応。
2. レンタル事業（REPCS）: 仮設配管資材のレンタルサービス。工事・災害時の水道管施工に使用する資材を全国各地の7拠点から出荷。全国シェアNo.1。
3. エンジニアリング事業: 制御盤・分電盤などの電気設備の設計・製作・設置工事、各種電気工事、机械设备的修繕・製作・据付。2026年にはタクミ電設をグループインしさらに強化。
4. 太陽光発電事業: 自家消費型太陽光発電システムの提供。雪国対応のソーラーカーポート（ソラレクト）、ソーラーサイクルポート（ソライユポート）、ソーラー東屋（ソラテラス/ソラレスト）を開発・発売。蓄電システムや水素蓄電システムも展開。
5. 水道事業: 完全民営化水道事業として東港水道事業を展開。地域の水がいの確保に貢献。
6. 工事業（建設・施工）: 水管橋工事、水道工事、機械器具設置工事、管路更生工事、循環式ハイブリッドブラストシステムによる涂膜剥がし工事などを実施。

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Meiwa Industries designs, manufactures, rents, and installs stainless steel water infrastructure products and services, including water bridges (PPLP), quick-connect pipe couplings (Glorajoint), temporary pipeline rental (REPCS), air valves, expansion joints, and emergency water supply equipment. It also sells solar power generation systems such as the Soralect snow-country solar carport, portable energy storage systems, and pilots a hydrogen energy storage system. Customers are primarily local water utilities, construction firms, and industrial plants across Japan.

Product overview

Meiwa Industries operates as a comprehensive water infrastructure manufacturer and service provider, offering a broad portfolio organized around water pipeline systems and renewable energy solutions. The water infrastructure portfolio centers on core products including water bridge/aqueduct systems (PPLP), temporary pipeline rental services (REPCS — used by over 85% of Japanese municipalities), and a full range of stainless steel pipe fittings (Glorajoint system, expansion joints, strainers, prefab pipes). Specialized water equipment includes multiple air valve lines: the freeze-proof Airis Neo, the agricultural Smart Air Valve (Gold-certified technology), and the compact MCV-G multi-purpose air valve. Disaster preparedness products encompass the Rescue Tap emergency valve, Rescue Tank (1-ton portable storage), and Safety Tower (40-ton emergency reservoir). The renewable energy division features the Soralect solar carport, Soleil Port solar cycle port, and Solaterasu/Solarest solar pavilions, all supporting off-grid operation. A pilot hydrogen energy storage system integrating solar generation with hydrogen production and fuel cell generation is under testing. Meiwa also manufactures specialty products such as portable energy storage systems and the upcycled Metareal stainless steel fishing lure. Services include aqueduct construction, pipe renewal (PIP, SDF, hose lining methods), water supply construction, electrical work, control panel design, and blast coating removal.

Differentiator

Problem solved

Functional benefit

Products and services

• PPLP Water Bridges and Bridge-Attached Pipelines (水管橋・橋梁添架管) Prefabricated Plastic Lining Pipe (PPLP) water bridges and bridge-attached pipeline systems with industry-first FRP coating; Meiwa provides end-to-end support from site survey through design, fabrication, painting, and construction for water utilities and infrastructure projects.
• REPCS (Rental Pipe Construction System) Temporary pipeline rental service using Meiwa's proprietary Glorajoint quick-connect system; enables rapid water supply restoration during disasters and construction without interrupting existing water mains; adopted by over 85% of municipalities nationwide.
• Glorajoint System (Stainless Steel One-Touch Coupling) Stainless steel quick-connect pipe coupling system enabling tool-free joint assembly by inserting and rotating; withstands up to 2.0MPa pressure and 80°C fluid temperature; fire-protection certified for sprinkler applications in 2006.
• Soralect (Soralect Solar Carport, ソラレクト) Snow-country solar carport system with industry-leading rigidity; available in standard and rear-support types; designed for vertical snow loads up to 250cm and wind speeds up to 39m/s; uses bifacial modules for enhanced power generation.
• Soleil Port (ソライユポート) Solar Cycle Port Solar-powered cycle port functioning as charging station for electric mobility (e-bikes, e-scooters) during normal times and as off-grid emergency power supply during disasters without grid connection.
• Solaterasu and Solarest Off-Grid Solar Pavilions (ソラテラス/ソラレスト) Off-grid solar-powered pavilion structures with square-roof (Solaterasu) and monopitch-roof (Solarest) options; integrate solar panels on roof, store electricity for disaster use, and support EV and smartphone charging without grid connection.
• Portable Energy Storage System (可搬型蓄電システム) Portable lithium-ion battery storage systems in 1.6kWh and 3.1kWh models plus vehicle-connected power supply; features UPS functionality for instant power switching during outages, solar charging, applications from emergency evacuation center power to worksite clean power.
• Hydrogen Energy Storage System (水素蓄電システム) Hydrogen-based energy storage system using solar carport power for water electrolysis, storing hydrogen in tanks and generating electricity via Panasonic fuel cells for use during non-operational periods; supports decarbonization and next-generation energy management.
• MS Joint (Meiwa Stretch Joint, メイワ・ストレッチジョイント) Expansion Joint High-performance stainless steel expansion joint featuring long stretch pipe for smooth absorption of pipe expansion and contraction; flexibility up to 3-5 degrees; uses SUS304/SUS316; CR rubber gasket provides chemical resistance.
• Stainless Prefab Pipe (ステンレスプレファブ管) Factory-manufactured stainless steel prefab pipes with various connections including flanges, roll grooving, housing, expansion, and Glorajoint; rolling ring processing for enhanced pressure up to 2.0MPa for fire sprinkler applications; supports BIM design using Rebro CAD.
• Airis Neo Freeze-Proof Rapid Air Valve (エアリス・ネオ) Freeze-proof rapid air valve with rotating-slide sub-valve mechanism for easy maintenance without specialized tools; uses pipeline flow energy, slim profile, supports shallow burial, conforms to JWWA B 137 standards.
• Smart Air Valve (スマートエアバルブ) Agricultural Air Valve Agricultural air valve with unique non-submerged valve seat design that prevents debris adhesion and water leakage; minimum seal pressure 4KPa (effective water head 40cm) suitable for low-pressure natural-flow lines; Gold-certified technology by Niigata Prefecture.
• MCV-G Multi-Purpose Compact Rapid Air Valve Multi-purpose compact rapid air valve designed for connection to REPCS G-type temporary pipes; enables emergency water supply extraction without main pipe shutdown; stainless steel construction with excellent exhaust capacity.
• Rescue Tap (レスキュータップ) Emergency Water Supply Valve Stainless steel emergency water supply valve that enables rapid temporary water supply by connecting to fire hydrants or existing infrastructure; uses Glorajoint system for tool-free assembly in approximately 3 minutes.
• Rescue Tank (レスキュータンク) Emergency Water Storage Tank Stainless steel emergency water storage tank with approximately 1-ton capacity, assembles in about 3 minutes; equipped with dedicated frame, portable carrying case (11.8kg), and connects to Rescue Tap for multi-outlet water distribution.
• Safety Tower (セーフティータワー) Emergency Drinking Water Reservoir Emergency drinking water storage tower with 40-ton capacity (sufficient for approximately 10,000 people at 4L/person); features built-in membrane filtration, chlorine disinfection, fire prevention water capability, decorative customization, and can be installed via PFI scheme.
• Glor Bucket Strainer (グローバケットストレーナー) One-touch strainer using the Glorajoint system that eliminates bolt-nut tightening during inspection and cleaning; cover removal/installation time reduced to approximately 1/10 of conventional flange types; product weight approximately 1/3 of conventional flange models.
• Metareal (メタリアル) Upcycled Stainless Steel Fishing Lure Articulated stainless steel fishing lure upcycled from Meiwa's manufacturing scrap materials; features adjustable joint articulation, superior durability, mirror-finish without coating; sold in three patterns: Uroko (scale), Kagayaki (glow), and Kagami (mirror).
• Aqueduct Construction Services (水管橋工事) Full-service aqueduct construction from site survey through proposal, design, fabrication, painting, construction, and after-market support; specializes in FRP coating as an industry first; supports self-performed construction and emergency response.
• Pipe Renewal Services (管路更生工事) Comprehensive pipe renewal services including Pipe-in-Pipe (PIP) method using steel pipe, stainless steel dynamic flex pipe SDF method, hose lining, ParteM-HL, ParteM-SZ, and ParteM Flooring methods for sewer and large-diameter pipes.
• Electrical Work Services (電気工事) Electrical infrastructure work including wiring for industrial equipment, lighting installation, distribution panel and control panel setup, performed by certified electricians and electrical construction management engineers.
• Control Panel Design and Manufacturing (制御盤設計製作) Design and manufacture of control panels and operation panels for water gates, pumping stations, and other facilities; provides integrated system proposals from design through sheet metal fabrication, painting, wiring, inspection, and on-site installation.
• Metal (メタル) Non-Articulated Stainless Steel Lure Non-articulated one-piece stainless steel lure upcycled from Meiwa's manufacturing scrap materials, sold alongside Metareal in the Makuake crowdfunding campaign in three patterns.

Quantifiable outcome

• REPCSにより、全国85%以上的自治体に導入されている（全国シェアNo.1）
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature8 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• 一般社団法人パッククッキング協会ジャパンminorOthers · 1 July 2026防災イベント「プロと学ぶ！水の確保と防災ごはん体験」の共催パートナー。講師としてパック調理ッキングの指導を担当。災害時の備え料理を指导下る。
• 新潟市アグリパークminorOthers · 25 April 2026親子向け防災イベント「プロと学ぶ！水の確保と防災ごはん体験」を2026年7月19日に共同開催するパートナー。災害時の水の確保重要性を伝える催しの舞台にを提供する。
• 株式会社タクミ電設coreStrategic or Co-development Partner · 10 April 2026メイワグループの完全子会社化（2026年4月10日付）。電気設備工事・空调設備工事などを主力事業とする企業で、新潟市西蒲区に本社を置く。明和工業のエンジニアリング事業（電気部門）との連携強化により、事業領域の拡大・サービス充実を図る。
• 株式会社ダイテックcoreStrategic or Co-development Partner · 30 September 2025メイワグループの完全子会社化（2025年9月30日付）。医薬・食品・化粧品関連れんぽう向けサニタリー配管・タンク類の製造企業で、高度な焊接・ユニット化技術を持つ。営業から設計・加工・焊接・研磨・検査・納品・据付・メンテナンスまで一貫対応可能な体制をグループに迎え入れる。
• 株式会社ショウテックminorStrategic or Co-development Partner · 30 September 2025ダイテックの関連会社として酸洗処理を行う子会社。ダイテック同様にグループに迎え入れる（2025年9月30日付）。
• 高砂熱学工業株式会社coreTechnology or Integration · 1 March 2025水素蓄電システムの設計・施工において協力。ソーラーカーポートで発電した電力を水電解装置で水素として生成・貯蔵し、パナのック製の燃料電池で発電するシステムの設計・施工を担当。試験運用を開始し、脱炭素・エネルギーマネジメントへの貢献を推進している。
• パナソニック株式会社エレクトリックワークス社coreTechnology or Integration · 1 March 2025水素蓄電システムのパートナー企業として、燃料電池の供货を担当。试验運用では、パナのックの燃料電池ユニットを採用し、水素から電気への変換を行ってる。

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• EBARA Corporation: Japanese pump and turbomachinery manufacturer with major exposure to water and wastewater infrastructure. Comparable to Meiwa on pump-installation and water-utility equipment, though EBARA operates globally at much larger scale.
• Kurita Water Industries: Leading Japanese water-treatment specialist serving municipal and industrial customers with chemicals, equipment, and ultrapure-water systems. Comparable to Meiwa on water-infrastructure adjacency, though focused on treatment chemistry and plant operations.
• Kubota Corporation: Japanese diversified manufacturer with a major water-infrastructure segment (ductile iron pipe, water-treatment plants, pumps). Comparable to Meiwa in municipal water-supply exposure but operates at much larger scale across multiple global businesses.
• JFE Engineering Corporation: Subsidiary of JFE Steel that designs and builds water and sewage infrastructure, including pipe rehabilitation and large-scale EPC. Comparable to Meiwa's aqueduct, pipe-renewal, and engineering offerings.
• Organo Corporation: Japanese water-treatment plant and pure-water systems provider to municipal, semiconductor, and pharmaceutical customers. Comparable to Meiwa on water-treatment plant equipment and sanitary-piping subsidiaries (Daitec).
• Hitachi Industrial Products: Subsidiary of Hitachi that manufactures industrial electrical apparatus including switchgear, transformers, and control panels. Comparable to Meiwa's engineering-business control-panel manufacturing and electrical-installation work.
• Toyota Tsusho Corporation: Japanese trading house with a hydrogen and renewables business unit. Comparable to Meiwa's emerging hydrogen-energy-storage pilot, though at far greater scale and global reach.

Direct peers

• Nichiden Corporation: Japanese manufacturer of emergency power supplies, generators, and disaster-response equipment. Comparable to Meiwa's portable energy-storage systems and disaster-preparedness product family targeting BCP buyers.
• West Holdings Corporation: Japanese renewable-energy IPP and rooftop-solar EPC focused on self-consumption solar and storage. Closely comparable to Meiwa's Soralect and Solaterasu/Solarest solar-carport and off-grid pavilion offerings for BCP and decarbonization use cases.

Regional players

• Suzuki Motor Corporation (water-side: none direct; using Dai-Dan as substitute): Dai-Dan is a Japanese mechanical and electrical contractor specializing in HVAC and building-services equipment. Comparable to Meiwa's Takumi Densetsu electrical-installation subsidiary and engineering-business scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/meiwa_corp
• LinkedInlinkedin.com/company/meiwa-industries-corp
• Instagraminstagram.com/meiwa.corp

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries9 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 MEIWA INDUSTRIES