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Nihon Suido Consultants Co., Ltd.

261AStandard MarketServices

株式会社日水コン logo
Nihon Suido Consultants Co., Ltd.261A

Construction Consulting Business (single segment)

A construction consulting company specializing in water supply and sewerage. Public sector projects account for the majority of revenue.

PeriodCurrentPreviousChange
Revenue (Q1 cumulative)¥7,409 million¥7,126 million
Operating profit (Q1 cumulative)¥1,234 million¥1,353 million
Operating margin (Q1 cumulative)16.7%19.0%
Ordinary profit (Q1 cumulative)¥1,333 million¥1,411 million
Net income attributable to owners of parent (Q1 cumulative)¥843 million¥922 million
Consolidated orders received (Q1 cumulative)¥2,813 millionDown 55.5% year on year
Consolidated order backlog (end of Q1)¥20,160 millionDown 7.6% year on year
Total assets (end of Q1)¥27,393 million¥24,793 million
Net assets (end of Q1)¥15,270 million¥14,964 million
Equity ratio (end of Q1)55.1%59.8%
Quarterly net income per share¥72.05¥77.68
Full-year revenue forecast¥24,900 million¥24,413 million (FY2025 actual, fiscal year ended December 2025)
Full-year operating profit forecast¥2,410 million¥2,379 million (FY2025 actual, fiscal year ended December 2025)

Business Details

A water infrastructure specialist construction consultant established in 1959. Provides technical consulting services including surveys, planning, design, and construction supervision across three fields: water supply, sewerage, and rivers and others. 93.5% of customers are government agencies. The company's core businesses are Water PPP (public-private partnership for water)-related operations, aging infrastructure and seismic countermeasures, and national resilience initiatives, and it also participates in concession projects such as the Miyagi Prefecture integrated water supply and sewerage public-private partnership operation project. Under the purpose of being a "Water Impact Company," the company is promoting the "Nihon Suido Consultants Group Vision 2030."

Recent Overview

Revenue increased 4.0% year on year, but operating profit fell 8.7% due to higher costs, resulting in higher revenue but lower profit.

In Q1 FY2026 (fiscal year ending December 2026) (January to March 2026), revenue increased to ¥7,409 million (up 4.0% year on year), but cost of sales grew at a faster rate of ¥5,000 million (up 7.7% year on year), exceeding revenue growth, causing gross profit to decline to ¥2,409 million (down 3.0% year on year). Operating profit was ¥1,234 million (down 8.7%), ordinary profit was ¥1,333 million (down 5.5%), and net income attributable to owners of parent was ¥843 million (down 8.5%), with each profit stage falling below the same period of the previous year. By field, water supply grew steadily by 16.8% and sewerage by 4.6%, while river and others declined sharply by 25.7% due to a decrease in orders received. Consolidated orders received decreased significantly to ¥2,813 million (down 55.5% year on year), and the order backlog also showed a downward trend at ¥20,160 million (down 7.6% year on year). The full-year earnings forecast remains unchanged at revenue of ¥24,900 million and operating profit of ¥2,410 million.

Key Products

service
Water Supply Consulting

Revenue for Q1 FY2026 (fiscal year ending December 2026) was ¥2,784 million (up 16.8% year on year). The company conducted Water PPP-related operations, aging infrastructure and seismic countermeasures, wide-area consolidation planning operations, and disaster countermeasure operations related to national resilience.

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Sewerage Consulting

Revenue for Q1 FY2026 (fiscal year ending December 2026) was ¥3,803 million (up 4.6% year on year). The company conducted Water PPP-related operations, aging infrastructure and seismic countermeasures, flood countermeasure operations, and disaster countermeasure operations related to national resilience.

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River, Erosion Control & Environmental Consulting (River & Others)

Revenue for Q1 FY2026 (fiscal year ending December 2026) was ¥821 million (down 25.7% year on year). In addition to flood control, water use, environmental, and disaster countermeasure operations related to national resilience, the company also engages in new water-related businesses such as small-scale hydropower generation. Results were affected by a decline in orders for flood control and water use operations at the company and its subsidiaries.

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PPP/PFI & Public-Private Partnership Support

Water PPP-related operations supporting the phased transition to public facility operation businesses. Demand is expanding against the backdrop of an increase in public-private partnership projects based on the Cabinet Office's PPP/PFI Promotion Action Plan.

service
Overseas Water Infrastructure Consulting

Provides technical support and consulting in the field of overseas water infrastructure. The company is also expanding overseas through equity-method affiliates, and equity in earnings of affiliates for Q1 FY2026 (fiscal year ending December 2026) increased significantly to ¥42 million (from ¥9 million in the same period of the previous year).

Growth Drivers

  • Promotion of national resilience: Continuous and stable public works-related expenditures are expected based on the "First National Resilience Implementation Medium-Term Plan," expanding demand for infrastructure disaster countermeasures and aging infrastructure measures
  • Expanding demand for Water PPP (public-private partnership for water): An increase in public-private partnership projects based on the Cabinet Office's PPP/PFI Promotion Action Plan, and the establishment of Japan's first special purpose company compliant with Water PPP [Level 3.5]
  • Aging infrastructure and seismic countermeasures: Demand for renewal of pipelines and other infrastructure laid during the period of rapid economic growth is expanding nationwide, with continued renewal demand for water supply assets exceeding ¥40 trillion
  • Accumulation of order backlog: The consolidated order backlog at the end of Q1 FY2026 (fiscal year ending December 2026) remained at a high level of ¥20,160 million, expected to contribute to revenue in the following period
  • Promotion of the Nihon Suido Consultants Group Vision 2030: Targets for 2030 include consolidated revenue of ¥30 billion, consolidated operating profit of ¥3 billion (operating margin of 10%), ROE of 10%, and 900 employees, aiming to expand into PPP/PFI and agriculture domains
  • Expansion of equity in earnings of affiliates: Equity in earnings of affiliates for Q1 FY2026 (fiscal year ending December 2026) increased significantly to ¥42 million from ¥9 million in the same period of the previous year, expanding revenue contribution from overseas and affiliated companies

Risks

  • Risk of fluctuations in public works budgets: Since the majority of revenue comes from government agency projects, reductions in government public works-related expenditures or changes in budget allocation directly impact performance
  • Significant decline in orders received: Consolidated orders received for Q1 FY2026 (fiscal year ending December 2026) fell sharply to ¥2,813 million (down 55.5% year on year), with the order backlog also trending downward, down 7.6% year on year
  • Profit margin decline due to rising cost ratio: The cost of sales ratio for Q1 rose to 67.5% (from 65.2% in the same period of the previous year), creating structural profit pressure whereby operating profit declined despite revenue growth
  • Risk of securing personnel and technology transfer: The shortage of engineers is becoming a serious issue across the construction consulting industry as a whole, with intensifying competition for recruitment and challenges in transferring technical skills to mid-career and younger staff
  • Decline in orders in the river and others field: Revenue in the river and others field for Q1 FY2026 (fiscal year ending December 2026) declined sharply by 25.7% year on year to ¥821 million, with the outlook for orders in flood control and water use operations remaining unclear
  • Decline in equity ratio: The equity ratio at the end of Q1 fell to 55.1%, down 4.7 percentage points from the end of the previous fiscal year (59.8%). The main cause was an expansion of total assets due to a sharp increase in contract liabilities (from ¥1,715 million to ¥3,870 million)
  • Trend in provision for compensation losses on operations: While the balance decreased from ¥562 million at the end of the previous fiscal year to ¥289 million at the end of Q1, continued management of operational quality risk is necessary

Last updated: March 25, 2026