Name

Kyosei

Legal name

Kyosei Corporation

Website

https://kyosei.com

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Osaka-shi

HQ country

Japan

HQ region

Asia

Offices21 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Manufacturing and Sales of KIRON Brand Products: Kyosei manufactures and sells its proprietary KIRON brand products including coated steel pipes, flexible pipes, fittings, PE valves, gas valves, and governors. This is the core revenue stream. The company operates 4 manufacturing plants producing these products.
2. Sales of Gas and Water Piping Materials: Distribution and sales of gas and water piping equipment from various manufacturers. Kyosei handles products from multiple suppliers as a distributor.
3. Trading/Export-Import Business: International trade operations handling import and export of piping materials and related products. The company has been engaged in trading business since 1960.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Kyosei Corporation manufactures and sells proprietary KIRON-brand coated steel pipes, flexible gas piping, valves, gas pressure governors, safety devices, and water plumbing products for gas utilities, water utilities, construction companies, and engineering firms across Japan. The company operates four manufacturing plants producing piping infrastructure components and distributes nationwide through its own sales network of branches and offices.

Product overview

Kyosei Corporation is a comprehensive manufacturer and supplier of gas and water piping materials, offering three main product lines: (1) Gas Products including Kyron KFT/KFP stainless steel flexible piping, Kyron VI rigid PVC-coated steel pipes and fittings, Kyron TO/PI2 metal flexible pipe fittings, PE valves, ball valves, butterfly valves, full-welded direct-burial steel valves (WS/SS types), governors (KA/KF/KT/KH types and units), safety devices, emergency shut-off systems, filters, and electric actuators; (2) Water Products including Kyron LP water supply pipes, Kyron VF fire protection pipes, Kyron HF flexible stainless steel pipes, Kyron DL drainage pipes; and (3) Recent innovations including Shinkkan Valve (water sensing emergency shut-off for tsunami/flood protection), Hydrogen-compatible steel valves, Color Variation pipes for multi-color applications, and Kyron DI pipes for landslide countermeasures. The company operates four manufacturing plants (Narita Shibayama, Nagano, Harima, Hashimoto) and an R&D Center (Kamuro).

Differentiator

Problem solved

Functional benefit

Brands

• キーロン (Keyron): Main brand for gas and water piping products including coated steel pipes, flexible pipes, valves, and governors
• 浸感弁 (Shinkkan-ben)
• 水素ガス対応全焊接型埋設式スチール弁 (Hydrogen Gas Compatible All-Welded Direct-Buried Steel Valve)

Products and services

• KIRON VI - Rigid PVC Coated Steel Pipes and Fittings Steel pipes with outer surface coated with rigid PVC resin providing corrosion resistance, chemical resistance, and insulation for underground and exposed gas piping. Includes associated fittings (elbows, tees, sockets) and nipples for gas distribution infrastructure.
• KIRON KFT/KFP Stainless Steel Flexible Gas Piping Flexible stainless steel indoor gas piping for city gas (KFT) and propane gas (KFP) applications. Features easy bending, high corrosion resistance, soft vinyl chloride coating, available in 10A-25A sizes.
• KIRON Flexible Pipes (Flexible Stainless Steel) Flexible stainless steel pipes for hot and cold water supply (KIRON HF, Japan Water Works Association certified) and fire protection (KIRON VF). Includes Kyron half-pipe variant designed to address labor shortage via single-person transportability.
• KIRON PE Valves (Polyethylene Valves) Polyethylene valves with metal core insert for seismic resistance. Features double-eccentric structure for excellent sealing and self-lubricating rubber seals for maintenance-free operation in gas distribution networks. Annual production capacity of 12,000 units.
• Full-Welded Direct-Burial Steel Valves (WS/SS Types) High-rigidity direct-burial steel valves with double-sheet structure (WS type with soft and metal seats for 4-point sealing; SS type with soft seat only) for reliable long-term sealing in gas transmission pipelines. Includes full-welded direct-burial insulation joints.
• Ductile Cast Iron Butterfly and Ball Valves Flange-type double-eccentric butterfly valves with special rubber for dust resistance suitable for medium B pressure; GMII type direct-burial ball valves with mechanical connection and reduction gear; flange-type ball valves for governor inlet/outlet and boiler equipment.
• Gas Pressure Governors (KA/KF/KT/KH Series) Complete gas governor line including KA (loading-type single valve), KF (loading-type double valve, wide application range), KT (balance-type single valve with excellent dynamic response for industrial/night holder applications), and KH (integrated type with built-in shut-off valve, relief valve, and filter). Also includes KYII, packaged, and STG governor units.
• Safety Devices and Emergency Shut-off Systems Dry-type safety device KVSR (spring-adjustable release pressure), water sealing safety device (stainless steel, corrosion-resistant), filters with integrated MEV emergency shut-off valves, pressure switch valves for direct-acting governors, and multi-gas emergency shut-off systems (explosion-proof, battery backup, expandable).
• Electric Actuator for Steel Valves Valve remote operation unit enabling remote valve opening/closing via motor with flexible shaft connection. Award-winning technology developed with Japan Gas Association support for labor-saving gas infrastructure maintenance.
• KIRON LP Water Supply Pipes and Fire Protection Pipes Water supply pipes including Kyron LP SGP-VA (black), SGP-VB (galvanized), and SGP-VD for water supply applications with internal and external vinyl lining. Also includes Kyron VF fire protection vinyl-coated steel pipe for sprinkler systems.
• KIRON DL Drainage Pipe Drainage vinyl-lined steel pipe for drainage applications including KIRON DI pipe variant with internal and external vinyl lining for landslide countermeasures, addressing estimated 11,000+ aging water collection wells nationwide. Adopted by Ministry of Land, Infrastructure, Transport and Tourism.
• Shinkkan Valve (浸感弁) - Water Sensing Emergency Shut-off Valve Emergency shutoff valve that automatically detects water (from tsunami or flood) and closes to prevent hazardous fluid discharge from small outdoor storage tanks. Machine-type requiring no electricity or manual operation. Jointly developed with TEPCO Design Co., Ltd.
• Hydrogen Gas Compatible Full-Welded Direct-Burial Steel Valve Hydrogen-compatible full-welded direct-burial steel valve for carbon-neutral and next-generation energy society applications. Size: 150A (100A and 200A in development). Design temperature: -20°C to 80°C. Usage pressure: below 1.0MPa. Connection: butt weld joint.
• Color Variation Pipe (カラーバリエーションパイプ) Multi-colored KIRON pipe (hard vinyl-lined steel pipe) for plant, coastal areas, and tunnel applications. Enables color-coding for fluid identification without repainting, contributing to long life and maintenance cost reduction.
• KIRON DI Pipe (Drainage Boring Pipe) Drainage boring pipe with internal and external vinyl lining for landslide countermeasures. Long-life drainage well piping protecting from pitting corrosion and rust buildup. Addresses estimated 11,000+ aging water collection wells nationwide. Adopted by Ministry of Land, Infrastructure, Transport and Tourism.

Quantifiable outcome

• Narita Shibayama Factory produces approximately 28% of its electricity needs through newly installed solar power system, reducing CO2 emissions by approximately 148 tons annually
• +2 more outcomes

Named customers5 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

Feature6 records

Partnerships

Five partnerships are on record, tiered core.

• 協成エンジニアリング株式会社 (Kyosei Engineering Corporation)coreStrategic or Co-development Partner · 1 January 2025Subsidiary company within the Kyosei Group. Kyosei Engineering received the 2025 Gas Safety Contribution Award (Kinki Branch Director Award) for gas infrastructure work. The subsidiary handles gas construction and engineering services, complementing Kyosei's manufacturing operations.
• 伊藤忠丸紅住商テクノスチール (Itochu Marubeni Technosteel)coreStrategic or Co-development Partner · 1 January 2024Through this group company connection, Kyosei coordinated disaster relief efforts following the Noto Peninsula Earthquake in 2024. Itochu Marubeni Technosteel introduced steel house manufacturers for temporary housing construction, and Kyosei supplied piping materials.
• 東電設計株式会社 (TEPCO Design Co., Ltd.)coreStrategic or Co-development Partner · 1 January 2022Joint development partner for the 浸感弁 (Shinkansen Valve) emergency shutoff valve. TEPCO Design contributed expertise in tsunami and flood protection for small-scale outdoor storage tanks. The valve automatically detects water and closes to prevent hazardous fluid discharge.
• 大阪ガスネットワーク株式会社 (Osaka Gas Network)coreStrategic or Co-development Partner · 1 January 2022Co-development partner for maintenance-efficient governor units. Joint development of cartridge-type detachable governor and boltless filter received the 6th Infrastructure Maintenance Awards - Minister of Economy, Trade and Industry Award (2023) and Japan Gas Association Technical Award (2023).
• 日本ガス協会 (Japan Gas Association)coreStrategic or Co-development Partner · 1 January 2004Japan Gas Association implements a technical development support system for regional gas companies. Kyosei developed the electric actuator (valve remote control unit) under this system, receiving the FY2010 Technical Award. Development involved joint work with member companies including Shiyougas, Narashino City Waterworks Bureau, and Otaki Gas.

Scale indicators7 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Kawamoto Pump Mfg. Co., Ltd. Japanese manufacturer specializing in industrial gas valves, regulators, and safety devices for city gas and LPG. Highly comparable to Kyosei's governor and gas pressure regulation product family serving Japanese gas utilities.
• C.I. Kasei (formerly C.I. Takiron): Japanese PVC/PE pipe and construction materials manufacturer supplying gas distribution and water infrastructure - directly competes with Kyosei's KIRON plastic-lined steel pipes and PE valves for Japanese utilities.
• Toyo Valve Co., Ltd. Japanese specialist valve manufacturer for gas, water, and industrial applications. Comparable to Kyosei in core gas distribution valve offerings (butterfly, ball, gate) targeting Japanese city gas and water utilities.
• Kurimoto, Ltd. Japanese steel castings, ductile iron pipes, and fittings manufacturer with significant presence in water and gas infrastructure. Directly comparable to Kyosei in cast/ductile pipe and valve products for utility end markets.
• Kitz Corporation: Leading Japanese manufacturer of industrial valves serving plumbing, gas distribution, HVAC and process industries. Directly comparable to Kyosei's steel valve portfolio (ball valves, butterfly valves, full-welded steel valves) serving overlapping Japanese utility and industrial customers.

Broad incumbents

• Kubota Corporation: Major Japanese industrial group with a substantial Ductile Iron Pipe & Valve segment serving water and gas utilities. A larger incumbent competing with Kyosei in pipe and valve infrastructure for municipal water supply and gas distribution.
• Rinnai Corporation: Major Japanese gas appliance manufacturer that shares Kyosei's gas utility customer base in residential gas distribution. Comparable at the customer-segment level although Rinnai operates downstream of Kyosei in the gas value chain.

Regional players

• Mueller Industries: US-based manufacturer of copper, brass, aluminum, and plastic products including plumbing fittings, valves, and pipe - comparable to Kyosei's wide range of pipe and valve products, but primarily serving the North American market.
• Watts Water Technologies: Global manufacturer of water plumbing products including valves, fittings, and water treatment equipment. Comparable to Kyosei in water plumbing and valve offerings, serving a different primary geography (Americas/Europe).
• Mueller Water Products: US-listed manufacturer of water infrastructure products including ductile iron pipe, valves, and hydrants. Highly comparable to Kyosei's water utility business but operating in the U.S. market rather than Japan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Kyosei