Yokohama Water

What Yokohama Water does

Yokohama Water Co., Ltd. (横浜ウォーター株式会社) is a privately held Japanese professional services firm established on July 1, 2010, as a 100% subsidiary of Yokohama City Water Bureau, with registered capital of ¥100,000,000. The company was created to commercialize and export Yokohama City's decades of operational expertise in water and sewerage management, functioning as the municipal utility's consulting, software, and training arm for both domestic Japanese municipalities and international development projects funded by JICA. Its headquarters are in central Yokohama (Naka-ku), and it is led by Representative Director Yamaoka Shuichi following a June 2026 leadership transition. Yokohama Water is ISO/IEC 27001 certified (renewed through March 22, 2027) and operates without external equity capital.

The company's offering combines ASP-based software products with consulting and training services. Its technology core is the patented Electronic Application System (Patent No. 7071942) for water supply equipment construction permits and inspections, deployed citywide across Yokohama, and a broader ASP platform providing ledger and water operations management tools. Complementary consulting services cover management planning, asset management, PPP/PFI advisory, monitoring and PDCA cycle support, and technical succession for water/sewer utilities. Water technician training is delivered both in-person at Yokohama City Water Bureau facilities and online via Vimeo, with published course pricing of ¥39,600 to ¥110,000 per participant and population-tiered subscription pricing for utilities.

Yokohama Water generates revenue through five streams: professional services consulting, managed monitoring/PDCA services, ASP subscription fees, training fees, and government contracts (primarily JICA international projects and MLIT policy work). The customer base is almost entirely governmental: over 100 Japanese municipal water and sewer utilities domestically and international water utilities (Metro Cebu, WASA Faisalabad, DAWACO) abroad, with all international revenue flowing through JICA project channels. By July 2023, the company reported 97 projects completed across 25 countries. The GTM motion is enterprise field sales via government tenders and JICA pipelines, supported by the structural advantage of its parent-subsidiary relationship with Yokohama City.

Name

Yokohama Water

Legal name

Yokohama Water Co., Ltd.

Website

https://yokohamawater.co.jp

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

Yokohama Water Co., Ltd. is a 100% Yokohama City Water Bureau-owned water infrastructure consulting firm serving Japanese municipal water utilities domestically and international water utilities through JICA projects, offering ASP software, asset management consulting, PPP/PFI advisory, and technician training.

Ownership category

akta.pro rank

Product category

Water Utility Consulting Services

NAICS

Utilities (221)

SIC

Services-Facilities Support Management Services (8744), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

akta.pro secondary industries

Water, Wastewater & Stormwater Compliance (BPAHAJAJ), Water Resources, WASH & Integrated Water Management (BPADALAH), Water & Wastewater Compliance (NPDES/Stormwater, Pretreatment, Drinking Water/SDWA) (EUAHABAB)

Keywords

• Water utility consulting
• Water infrastructure management
• ASP software services
• Water engineer training
• Asset management services

Headquarters

HQ city

Yokohama-shi

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Others

Revenue model

1. Consulting and Advisory Services: Management consulting, technical advisory, and professional services for water and sewer utilities including management planning, asset management, PPP/PFI advisory, and technical succession support.
2. Monitoring and PDCA Support Services: Ongoing monitoring and PDCA cycle support services for water/sewer utilities, helping them execute and improve operational plans.
3. ASP / Software Subscriptions: Cloud-based ASP services including electronic application system, ledger systems, and water operations systems provided on a subscription basis.
4. Training Services: Water technician training programs (both in-person and online) for water utility staff. Pricing per course ranging from ¥39,600 to ¥110,000 per participant. Also offers custom on-demand training.
5. Government Contract Services: Operational and technical service contracts with Japanese government agencies (Ministry of Land, Infrastructure, Transport and Tourism, JICA, municipal water bureaus).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Yokohama Water provides water and sewer infrastructure consulting, ASP-based cloud software, and training services to municipal water utilities. Its portfolio combines patented software products (Electronic Application System and ASP platform) with advisory services in asset management, PPP/PFI structuring, monitoring/PDCA support, and technical succession. The company also runs in-person and online training programs for water utility engineers. Customers are Japanese municipal water bureaus and international utilities, primarily engaged through JICA-funded projects.

Product overview

Yokohama Water is a 100% Yokohama City Water Bureau-owned water infrastructure management company offering a portfolio of ASP-based software products and consulting services for water and sewage utilities. Its core software products include the patented Electronic Application System for water supply equipment construction permits and approval workflows, and the ASP service platform providing ledger management and water distribution operation systems. These are complemented by consulting services for asset management, management planning, PPP/PFI support, monitoring/PDCA assistance, and technical succession. The company also provides in-person and online training programs for water utility engineers covering infrastructure, operations, equipment, leak detection, and water treatment. The portfolio is structured as a combination of technology-based ASP products and advisory/operational consulting services, targeting Japanese municipal water and sewage utilities domestically and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Supply Equipment Construction Electronic Application System (給水装置工事電子申請システム)

Quantifiable outcome

• 97 international projects completed in 25 countries as of July 2023
• +2 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• JICA (独立行政法人国際協力機構)coreStrategic or Co-development PartnerJICA is the primary channel for Yokohama Water's international business. The company has been awarded multiple JICA technical cooperation projects, grant aid projects (including feasibility studies and detailed planning surveys), and JCM (Joint Crediting Mechanism) projects since its establishment. Major engagements include the Metro Cebu Water District technical cooperation project, Faisalabad Water and Sewerage Master Plan project, Africa water technician training program (since 2011), and JCM energy-efficient pump projects in Vietnam.
• Yokohama City Water Bureau (横浜市水道局)coreStrategic or Co-development PartnerAs a 100% subsidiary of Yokohama City Water Bureau, the company leverages the water bureau's operational expertise, facilities, and staff resources. The water bureau provides the training venues (Nakamura Water Plaza, Nishiya Purification Plant) and collaborates on overseas technical cooperation projects. The two organizations co-sign international cooperation agreements with overseas water utilities.
• Yokohama City Sewerage and River Bureau (横浜市下水道河川局)coreStrategic or Co-development PartnerPartners with Yokohama City Sewerage and River Bureau alongside the Water Bureau for integrated water and sewer consulting services. Collaborates on overseas projects and domestic sewer-related services such as public sewer connection confirmation surveys.
• Ministry of Land, Infrastructure, Transport and Tourism (国土交通省)coreStrategic or Co-development PartnerThe Ministry awards contracts for water and sewer business promotion projects, including the '水道事業の啓発に向けた調査検討等及びセミナー企画運営業務' (Water business awareness survey and seminar planning/operation), which Yokohama Water has won for three consecutive years. Also involved in sewerage policy projects and disaster recovery PPP initiatives.
• Da Nang Water Company (DAWACO) — VietnamminorStrategic or Co-development PartnerPartner in the JCM (Joint Crediting Mechanism) energy-efficient pump project in Da Nang, Vietnam. Yokohama Water led an international consortium to install high-efficiency pumps at Cau Do water treatment plant, reducing CO2 emissions and energy costs for DAWACO.
• Metro Cebu Water District (MCWD) — PhilippinesminorStrategic or Co-development PartnerLong-standing partner in Metro Cebu's water supply improvement. Yokohama Water has conducted organizational and technical capacity strengthening, SCADA installation (JICA grant), sewage sludge management planning, and sewerage master planning for MCWD.
• WASA Faisalabad — PakistanminorStrategic or Co-development PartnerPartner since 2015 for Punjab State Water and Sewerage Management Strengthening Project. Technical cooperation expanded to a full master plan project for Faisalabad. Yokohama Water's pilot DMA and continuous water supply program achieved national recognition as a model for Pakistan. Technical exchange MOU signed in October 2019.
• Kanto Gakuin University (関東学院大学)minorStrategic or Co-development PartnerAcademic partnership for research and knowledge exchange on water utility management and future workforce development in the water sector. Part of multi-stakeholder initiatives including local government and academic partnerships.
• Hitachi University / Ibaraki University (茨城大学)minorStrategic or Co-development PartnerAcademic partnership contributing to water sector research and talent development. Included in multi-stakeholder initiatives with Kanto Gakuin University and local governments.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Organo Corporation: Japanese water treatment systems and pure water engineering company serving semiconductor, pharmaceutical, and municipal customers. A broader incumbent in water treatment equipment and plant design with adjacent municipal market presence but different commercial model.
• Suez Water Technologies & Solutions: Global water and waste management major providing municipal and industrial water services including consulting, asset management, and digital solutions. Comparable as a broad incumbent with international water utility advisory and digital water offerings overlapping Yokohama Water's consulting and ASP portfolio.
• Veolia Water Technologies: Global water services major operating across municipal water/wastewater treatment, network management, and consulting worldwide. Comparable in international development and water utility advisory scope, but at much larger scale and as an incumbent operator rather than government-affiliated specialist.
• Kurita Water Industries Ltd. Major Japanese water treatment chemicals, equipment, and ultra-pure water systems provider serving industrial and municipal customers. A broader incumbent in the water space with overlapping municipal relationships but a fundamentally different chemicals-and-equipment business model rather than consulting.
• Metawater Co., Ltd. Japanese water and wastewater treatment plant EPC and operations company formed from the merger of NGK and Fuji Electric water units. A broad incumbent competing for municipal water/sewer operational contracts but in plant construction and operations rather than advisory consulting.

Direct peers

• Kokusai Kogyo Co., Ltd. Japanese consulting firm with significant water resources, environmental, and GIS/mapping expertise, including overseas development work. Comparable as an infrastructure and water-resources consulting peer with overlapping asset management and international development capabilities.
• Nihon Suido Consultants Co., Ltd. Specialist Japanese water-sector engineering consultancy providing planning, design, and advisory services to municipal water utilities. Most directly comparable as a similarly focused water-only consulting peer serving Japan's municipal water sector.
• CTI Engineering Co., Ltd. Japanese engineering consulting firm providing water supply, sewerage, and infrastructure planning services. Comparable in its technical consulting offerings and engagement with municipal and international water utility clients, particularly across Asia.
• NJS Co., Ltd. Japan's largest water-focused engineering consulting firm, providing planning, design, construction supervision, and asset management for water supply and sewerage utilities domestically and internationally. Directly comparable as a specialist water infrastructure consulting peer with overlapping service lines in asset management, master planning, and capacity building.
• Pacific Consultants Co., Ltd. Major Japanese infrastructure consulting firm with a substantial water and environmental business line, including overseas development consulting. Comparable as a multi-disciplinary consultant competing for municipal water and JICA international development projects alongside Yokohama Water.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Yokohama Water