Annual report
1887.TEDINET S100YXXI
Period2025-06-01 → 2026-05-31
Filed2026-08-21
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 156
| Metric | Value | Period | Scope | Source row |
|---|---|---|---|---|
| Revenue | ¥135.2bn | 2025-06-01 → 2026-05-31 | Cons. | Net sales |
| Revenue | ¥123.3bn | 2024-06-01 → 2025-05-31 | Cons. | Net sales |
| Revenue | ¥135.7bn | 2023-06-01 → 2024-05-31v | Cons. | Net sales (5-year summary) |
| Revenue | ¥154.2bn | 2022-06-01 → 2023-05-31v | Cons. | Net sales (5-year summary) |
| Revenue | ¥126.8bn | 2021-06-01 → 2022-05-31v | Cons. | Net sales (5-year summary) |
| Operating income | ¥7.2bn | 2025-06-01 → 2026-05-31 | Cons. | Operating income |
| Operating income | ¥2.3bn | 2024-06-01 → 2025-05-31 | Cons. | Operating income |
| Ordinary income | ¥6.6bn | 2025-06-01 → 2026-05-31 | Cons. | Ordinary income |
| Ordinary income | ¥1.9bn | 2024-06-01 → 2025-05-31 | Cons. | Ordinary income |
| Ordinary income | −¥9.3bn | 2023-06-01 → 2024-05-31v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥4.6bn | 2022-06-01 → 2023-05-31v | Cons. | Ordinary income loss (5-year summary) |
| Ordinary income | ¥8.4bn | 2021-06-01 → 2022-05-31v | Cons. | Ordinary income loss (5-year summary) |
| Profit before tax | ¥6.5bn | 2025-06-01 → 2026-05-31 | Cons. | Income before income taxes |
| Profit before tax | ¥2.2bn | 2024-06-01 → 2025-05-31 | Cons. | Income before income taxes |
| Net income (owners) | ¥5.5bn | 2025-06-01 → 2026-05-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | ¥1.3bn | 2024-06-01 → 2025-05-31 | Cons. | Profit loss attributable to owners of parent |
| Net income (owners) | −¥7.2bn | 2023-06-01 → 2024-05-31v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥3.3bn | 2022-06-01 → 2023-05-31v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income (owners) | ¥7.4bn | 2021-06-01 → 2022-05-31v | Cons. | Profit loss attributable to owners of parent (5-year summary) |
| Net income | ¥5.5bn | 2025-06-01 → 2026-05-31 | Cons. | Profit loss |
| Net income | ¥1.4bn | 2024-06-01 → 2025-05-31 | Cons. | Profit loss |
| Total assets | ¥158.0bn | at 2026-05-31 | Cons. | Assets |
| Total assets | ¥140.6bn | at 2025-05-31 | Cons. | Assets |
| Total assets | ¥145.7bn | at 2024-05-31v | Cons. | Total assets (5-year summary) |
| Total assets | ¥162.3bn | at 2023-05-31v | Cons. | Total assets (5-year summary) |
| Total assets | ¥154.7bn | at 2022-05-31v | Cons. | Total assets (5-year summary) |
| Total liabilities | ¥86.6bn | at 2026-05-31 | Cons. | Liabilities |
| Total liabilities | ¥74.2bn | at 2025-05-31 | Cons. | Liabilities |
| Net assets / equity | ¥71.4bn | at 2026-05-31 | Cons. | Net assets |
| Net assets / equity | ¥66.4bn | at 2025-05-31 | Cons. | Net assets |
| Net assets / equity | ¥68.6bn | at 2024-05-31v | Cons. | Net assets |
| Net assets / equity | ¥78.0bn | at 2023-05-31v | Cons. | Net assets (5-year summary) |
| Net assets / equity | ¥79.9bn | at 2022-05-31v | Cons. | Net assets (5-year summary) |
| Cash and deposits | ¥19.9bn | at 2026-05-31 | Cons. | Cash and deposits |
| Cash and deposits | ¥18.1bn | at 2025-05-31 | Cons. | Cash and deposits |
| Cash & equivalents | ¥19.7bn | at 2026-05-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥18.1bn | at 2025-05-31 | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥21.9bn | at 2024-05-31v | Cons. | Cash and cash equivalents |
| Cash & equivalents | ¥23.7bn | at 2023-05-31v | Cons. | Cash and cash equivalents (5-year summary) |
| Cash & equivalents | ¥47.2bn | at 2022-05-31v | Cons. | Cash and cash equivalents (5-year summary) |
| Operating cash flow | −¥4.6bn | 2025-06-01 → 2026-05-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | ¥3.8bn | 2024-06-01 → 2025-05-31 | Cons. | Net cash provided by used in operating activities |
| Operating cash flow | −¥1.3bn | 2023-06-01 → 2024-05-31v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | −¥11.1bn | 2022-06-01 → 2023-05-31v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Operating cash flow | ¥3.8bn | 2021-06-01 → 2022-05-31v | Cons. | Net cash provided by used in operating activities (5-year summary) |
| Investing cash flow | ¥456m | 2025-06-01 → 2026-05-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | −¥3.9bn | 2024-06-01 → 2025-05-31 | Cons. | Net cash provided by used in investment activities |
| Investing cash flow | ¥1.5bn | 2023-06-01 → 2024-05-31v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | −¥6.3bn | 2022-06-01 → 2023-05-31v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Investing cash flow | ¥4.3bn | 2021-06-01 → 2022-05-31v | Cons. | Net cash provided by used in investing activities (5-year summary) |
| Financing cash flow | ¥5.3bn | 2025-06-01 → 2026-05-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥3.8bn | 2024-06-01 → 2025-05-31 | Cons. | Net cash provided by used in financing activities |
| Financing cash flow | −¥2.1bn | 2023-06-01 → 2024-05-31v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥6.1bn | 2022-06-01 → 2023-05-31v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| Financing cash flow | −¥8.1bn | 2021-06-01 → 2022-05-31v | Cons. | Net cash provided by used in financing activities (5-year summary) |
| EPS (basic) | ¥68.36 | 2025-06-01 → 2026-05-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥16.62 | 2024-06-01 → 2025-05-31 | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-86.21 | 2023-06-01 → 2024-05-31v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥38.95 | 2022-06-01 → 2023-05-31v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥84.47 | 2021-06-01 → 2022-05-31v | Cons. | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥68.33 | 2025-06-01 → 2026-05-31 | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥16.61 | 2024-06-01 → 2025-05-31 | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥38.89 | 2022-06-01 → 2023-05-31v | Cons. | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥84.28 | 2021-06-01 → 2022-05-31v | Cons. | Diluted earnings per share (5-year summary) |
| Net assets per share | ¥892.21 | at 2026-05-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥831.37 | at 2025-05-31 | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥819.47 | at 2024-05-31v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥935.11 | at 2023-05-31v | Cons. | Net assets per share (5-year summary) |
| Net assets per share | ¥900.89 | at 2022-05-31v | Cons. | Net assets per share (5-year summary) |
| Equity ratio | 45.1% | at 2026-05-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 47.1% | at 2025-05-31 | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 47.0% | at 2024-05-31v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 48.0% | at 2023-05-31v | Cons. | Equity to asset ratio (5-year summary) |
| Equity ratio | 51.2% | at 2022-05-31v | Cons. | Equity to asset ratio (5-year summary) |
| ROE | 7.9% | 2025-06-01 → 2026-05-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | 2.0% | 2024-06-01 → 2025-05-31 | Cons. | Rate of return on equity (5-year summary) |
| ROE | -9.8% | 2023-06-01 → 2024-05-31v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 4.2% | 2022-06-01 → 2023-05-31v | Cons. | Rate of return on equity (5-year summary) |
| ROE | 9.7% | 2021-06-01 → 2022-05-31v | Cons. | Rate of return on equity (5-year summary) |
| Employees | 1,104 | at 2026-05-31 | Cons. | Number of employees |
| Employees | 1,020 | at 2025-05-31 | Cons. | Number of employees |
| Employees | 1,048 | at 2024-05-31v | Cons. | Number of employees |
| Employees | 1,094 | at 2023-05-31v | Cons. | Number of employees |
| Employees | 1,106 | at 2022-05-31v | Cons. | Number of employees |
| Revenue | ¥115.2bn | 2025-06-01 → 2026-05-31 | Standalone | Net sales |
| Revenue | ¥98.1bn | 2024-06-01 → 2025-05-31 | Standalone | Net sales |
| Revenue | ¥114.4bn | 2023-06-01 → 2024-05-31v | Standalone | Net sales (5-year summary) |
| Revenue | ¥136.2bn | 2022-06-01 → 2023-05-31v | Standalone | Net sales (5-year summary) |
| Revenue | ¥113.1bn | 2021-06-01 → 2022-05-31v | Standalone | Net sales (5-year summary) |
| Operating income | ¥6.5bn | 2025-06-01 → 2026-05-31 | Standalone | Operating income |
| Operating income | ¥1.9bn | 2024-06-01 → 2025-05-31 | Standalone | Operating income |
| Ordinary income | ¥6.2bn | 2025-06-01 → 2026-05-31 | Standalone | Ordinary income |
| Ordinary income | ¥2.5bn | 2024-06-01 → 2025-05-31 | Standalone | Ordinary income |
| Ordinary income | −¥10.7bn | 2023-06-01 → 2024-05-31v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥4.1bn | 2022-06-01 → 2023-05-31v | Standalone | Ordinary income loss (5-year summary) |
| Ordinary income | ¥8.4bn | 2021-06-01 → 2022-05-31v | Standalone | Ordinary income loss (5-year summary) |
| Profit before tax | ¥5.9bn | 2025-06-01 → 2026-05-31 | Standalone | Income before income taxes |
| Profit before tax | ¥2.6bn | 2024-06-01 → 2025-05-31 | Standalone | Income before income taxes |
| Net income | ¥5.0bn | 2025-06-01 → 2026-05-31 | Standalone | Profit loss |
| Net income | ¥2.2bn | 2024-06-01 → 2025-05-31 | Standalone | Profit loss |
| Net income | −¥8.3bn | 2023-06-01 → 2024-05-31v | Standalone | Net income loss (5-year summary) |
| Net income | ¥3.2bn | 2022-06-01 → 2023-05-31v | Standalone | Net income loss (5-year summary) |
| Net income | ¥7.8bn | 2021-06-01 → 2022-05-31v | Standalone | Net income loss (5-year summary) |
| Total assets | ¥135.0bn | at 2026-05-31 | Standalone | Assets |
| Total assets | ¥117.9bn | at 2025-05-31 | Standalone | Assets |
| Total assets | ¥120.1bn | at 2024-05-31v | Standalone | Total assets (5-year summary) |
| Total assets | ¥141.5bn | at 2023-05-31v | Standalone | Total assets (5-year summary) |
| Total assets | ¥133.5bn | at 2022-05-31v | Standalone | Total assets (5-year summary) |
| Total liabilities | ¥70.7bn | at 2026-05-31 | Standalone | Liabilities |
| Total liabilities | ¥57.2bn | at 2025-05-31 | Standalone | Liabilities |
| Net assets / equity | ¥64.4bn | at 2026-05-31 | Standalone | Net assets |
| Net assets / equity | ¥60.7bn | at 2025-05-31 | Standalone | Net assets |
| Net assets / equity | ¥62.3bn | at 2024-05-31v | Standalone | Net assets |
| Net assets / equity | ¥73.3bn | at 2023-05-31v | Standalone | Net assets (5-year summary) |
| Net assets / equity | ¥74.6bn | at 2022-05-31v | Standalone | Net assets (5-year summary) |
| Cash and deposits | ¥11.9bn | at 2026-05-31 | Standalone | Cash and deposits |
| Cash and deposits | ¥11.6bn | at 2025-05-31 | Standalone | Cash and deposits |
| EPS (basic) | ¥62.33 | 2025-06-01 → 2026-05-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥27.79 | 2024-06-01 → 2025-05-31 | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥-99.76 | 2023-06-01 → 2024-05-31v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥37.76 | 2022-06-01 → 2023-05-31v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (basic) | ¥89.3 | 2021-06-01 → 2022-05-31v | Standalone | Basic earnings loss per share (5-year summary) |
| EPS (diluted) | ¥62.3 | 2025-06-01 → 2026-05-31 | Standalone | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥27.77 | 2024-06-01 → 2025-05-31 | Standalone | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥37.7 | 2022-06-01 → 2023-05-31v | Standalone | Diluted earnings per share (5-year summary) |
| EPS (diluted) | ¥89.09 | 2021-06-01 → 2022-05-31v | Standalone | Diluted earnings per share (5-year summary) |
| Dividend per share | ¥25 | 2025-06-01 → 2026-05-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥22 | 2024-06-01 → 2025-05-31 | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥22 | 2023-06-01 → 2024-05-31v | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥26 | 2022-06-01 → 2023-05-31v | Standalone | Dividend paid per share (5-year summary) |
| Dividend per share | ¥26 | 2021-06-01 → 2022-05-31v | Standalone | Dividend paid per share (5-year summary) |
| Net assets per share | ¥806.56 | at 2026-05-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥762.6 | at 2025-05-31 | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥746.35 | at 2024-05-31v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥879.61 | at 2023-05-31v | Standalone | Net assets per share (5-year summary) |
| Net assets per share | ¥849.34 | at 2022-05-31v | Standalone | Net assets per share (5-year summary) |
| Equity ratio | 47.7% | at 2026-05-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 51.5% | at 2025-05-31 | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 51.9% | at 2024-05-31v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 51.8% | at 2023-05-31v | Standalone | Equity to asset ratio (5-year summary) |
| Equity ratio | 55.9% | at 2022-05-31v | Standalone | Equity to asset ratio (5-year summary) |
| ROE | 7.9% | 2025-06-01 → 2026-05-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | 3.6% | 2024-06-01 → 2025-05-31 | Standalone | Rate of return on equity (5-year summary) |
| ROE | -12.3% | 2023-06-01 → 2024-05-31v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 4.3% | 2022-06-01 → 2023-05-31v | Standalone | Rate of return on equity (5-year summary) |
| ROE | 10.9% | 2021-06-01 → 2022-05-31v | Standalone | Rate of return on equity (5-year summary) |
| Shares issued | 89,255,000 | at 2026-05-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 89,255,000 | at 2025-05-31 | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 93,255,000 | at 2024-05-31v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 93,255,000 | at 2023-05-31v | Standalone | Total number of issued shares (5-year summary) |
| Shares issued | 98,255,000 | at 2022-05-31v | Standalone | Total number of issued shares (5-year summary) |
| Employees | 835 | at 2026-05-31 | Standalone | Number of employees |
| Employees | 793 | at 2025-05-31 | Standalone | Number of employees |
| Employees | 830 | at 2024-05-31v | Standalone | Number of employees |
| Employees | 863 | at 2023-05-31v | Standalone | Number of employees |
| Employees | 884 | at 2022-05-31v | Standalone | Number of employees |
Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.
Segments · 116
| Segment | Item | Period | Value |
|---|---|---|---|
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | capex | 2025-06-01 → 2026-05-31 | ¥1.2bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | depreciation | 2025-06-01 → 2026-05-31 | ¥226m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | employees | at 2026-05-31 | 47 pure |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue | 2025-06-01 → 2026-05-31 | ¥1.0bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue external | 2025-06-01 → 2026-05-31 | ¥1.0bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥3m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment assets | at 2026-05-31 | ¥2.8bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment profit | 2025-06-01 → 2026-05-31 | −¥174m |
| Reconciling Itemsreconciling | capex | 2025-06-01 → 2026-05-31 | ¥581m |
| Reconciling Itemsreconciling | depreciation | 2025-06-01 → 2026-05-31 | ¥567m |
| Reconciling Itemsreconciling | revenue | 2025-06-01 → 2026-05-31 | −¥2.3bn |
| Reconciling Itemsreconciling | revenue intersegment | 2025-06-01 → 2026-05-31 | −¥2.3bn |
| Reconciling Itemsreconciling | segment assets | at 2026-05-31 | ¥15.8bn |
| Reconciling Itemsreconciling | segment profit | 2025-06-01 → 2026-05-31 | −¥1.8bn |
| Constructionreportable segment | capex | 2025-06-01 → 2026-05-31 | ¥20m |
| Constructionreportable segment | depreciation | 2025-06-01 → 2026-05-31 | ¥27m |
| Constructionreportable segment | employees | at 2026-05-31 | 557 pure |
| Constructionreportable segment | revenue | 2025-06-01 → 2026-05-31 | ¥92.5bn |
| Constructionreportable segment | revenue external | 2025-06-01 → 2026-05-31 | ¥92.4bn |
| Constructionreportable segment | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥101m |
| Constructionreportable segment | segment assets | at 2026-05-31 | ¥52.6bn |
| Constructionreportable segment | segment profit | 2025-06-01 → 2026-05-31 | ¥7.0bn |
| Energy Businessreportable segment | capex | 2025-06-01 → 2026-05-31 | ¥844m |
| Energy Businessreportable segment | depreciation | 2025-06-01 → 2026-05-31 | ¥212m |
| Energy Businessreportable segment | employees | at 2026-05-31 | 17 pure |
| Energy Businessreportable segment | revenue | 2025-06-01 → 2026-05-31 | ¥3.5bn |
| Energy Businessreportable segment | revenue external | 2025-06-01 → 2026-05-31 | ¥3.5bn |
| Energy Businessreportable segment | segment assets | at 2026-05-31 | ¥25.6bn |
| Energy Businessreportable segment | segment profit | 2025-06-01 → 2026-05-31 | ¥1.3bn |
| Engineeringreportable segment | capex | 2025-06-01 → 2026-05-31 | ¥433m |
| Engineeringreportable segment | depreciation | 2025-06-01 → 2026-05-31 | ¥437m |
| Engineeringreportable segment | employees | at 2026-05-31 | 461 pure |
| Engineeringreportable segment | revenue | 2025-06-01 → 2026-05-31 | ¥38.0bn |
| Engineeringreportable segment | revenue external | 2025-06-01 → 2026-05-31 | ¥35.9bn |
| Engineeringreportable segment | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥2.2bn |
| Engineeringreportable segment | segment assets | at 2026-05-31 | ¥32.4bn |
| Engineeringreportable segment | segment profit | 2025-06-01 → 2026-05-31 | ¥318m |
| Real Estate Businessreportable segment | capex | 2025-06-01 → 2026-05-31 | ¥0 |
| Real Estate Businessreportable segment | depreciation | 2025-06-01 → 2026-05-31 | ¥96m |
| Real Estate Businessreportable segment | employees | at 2026-05-31 | 22 pure |
| Real Estate Businessreportable segment | revenue | 2025-06-01 → 2026-05-31 | ¥2.5bn |
| Real Estate Businessreportable segment | revenue external | 2025-06-01 → 2026-05-31 | ¥2.5bn |
| Real Estate Businessreportable segment | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥49m |
| Real Estate Businessreportable segment | segment assets | at 2026-05-31 | ¥28.8bn |
| Real Estate Businessreportable segment | segment profit | 2025-06-01 → 2026-05-31 | ¥507m |
| —segment total | capex | 2025-06-01 → 2026-05-31 | ¥1.3bn |
| —segment total | depreciation | 2025-06-01 → 2026-05-31 | ¥773m |
| —segment total | revenue | 2025-06-01 → 2026-05-31 | ¥136.5bn |
| —segment total | revenue external | 2025-06-01 → 2026-05-31 | ¥134.2bn |
| —segment total | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥2.3bn |
| —segment total | segment assets | at 2026-05-31 | ¥139.4bn |
| —segment total | segment profit | 2025-06-01 → 2026-05-31 | ¥9.1bn |
| Total Of Reportable Segments And Otherssegment total | capex | 2025-06-01 → 2026-05-31 | ¥2.5bn |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2025-06-01 → 2026-05-31 | ¥1.0bn |
| Total Of Reportable Segments And Otherssegment total | revenue | 2025-06-01 → 2026-05-31 | ¥137.5bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2025-06-01 → 2026-05-31 | ¥135.2bn |
| Total Of Reportable Segments And Otherssegment total | revenue intersegment | 2025-06-01 → 2026-05-31 | ¥2.3bn |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2026-05-31 | ¥142.2bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2025-06-01 → 2026-05-31 | ¥9.0bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | capex | 2024-06-01 → 2025-05-31 | ¥865m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | depreciation | 2024-06-01 → 2025-05-31 | ¥123m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue | 2024-06-01 → 2025-05-31 | ¥724m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | revenue external | 2024-06-01 → 2025-05-31 | ¥724m |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment assets | at 2025-05-31 | ¥3.1bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | segment profit | 2024-06-01 → 2025-05-31 | −¥211m |
| Reconciling Itemsreconciling | capex | 2024-06-01 → 2025-05-31 | ¥399m |
| Reconciling Itemsreconciling | depreciation | 2024-06-01 → 2025-05-31 | ¥538m |
| Reconciling Itemsreconciling | revenue | 2024-06-01 → 2025-05-31 | −¥1.8bn |
| Reconciling Itemsreconciling | revenue intersegment | 2024-06-01 → 2025-05-31 | −¥1.8bn |
| Reconciling Itemsreconciling | segment assets | at 2025-05-31 | ¥17.5bn |
| Reconciling Itemsreconciling | segment profit | 2024-06-01 → 2025-05-31 | −¥1.6bn |
| Constructionreportable segment | capex | 2024-06-01 → 2025-05-31 | ¥46m |
| Constructionreportable segment | depreciation | 2024-06-01 → 2025-05-31 | ¥45m |
| Constructionreportable segment | revenue | 2024-06-01 → 2025-05-31 | ¥74.6bn |
| Constructionreportable segment | revenue external | 2024-06-01 → 2025-05-31 | ¥74.6bn |
| Constructionreportable segment | revenue intersegment | 2024-06-01 → 2025-05-31 | ¥46m |
| Constructionreportable segment | segment assets | at 2025-05-31 | ¥44.4bn |
| Constructionreportable segment | segment profit | 2024-06-01 → 2025-05-31 | ¥2.6bn |
| Energy Businessreportable segment | capex | 2024-06-01 → 2025-05-31 | ¥1.7bn |
| Energy Businessreportable segment | depreciation | 2024-06-01 → 2025-05-31 | ¥813m |
| Energy Businessreportable segment | revenue | 2024-06-01 → 2025-05-31 | ¥7.4bn |
| Energy Businessreportable segment | revenue external | 2024-06-01 → 2025-05-31 | ¥7.4bn |
| Energy Businessreportable segment | segment assets | at 2025-05-31 | ¥23.4bn |
| Energy Businessreportable segment | segment profit | 2024-06-01 → 2025-05-31 | ¥3.7bn |
| Engineeringreportable segment | capex | 2024-06-01 → 2025-05-31 | ¥234m |
| Engineeringreportable segment | depreciation | 2024-06-01 → 2025-05-31 | ¥506m |
| Engineeringreportable segment | revenue | 2024-06-01 → 2025-05-31 | ¥37.1bn |
| Engineeringreportable segment | revenue external | 2024-06-01 → 2025-05-31 | ¥35.4bn |
| Engineeringreportable segment | revenue intersegment | 2024-06-01 → 2025-05-31 | ¥1.7bn |
| Engineeringreportable segment | segment assets | at 2025-05-31 | ¥29.1bn |
| Engineeringreportable segment | segment profit | 2024-06-01 → 2025-05-31 | −¥4.5bn |
| Real Estate Businessreportable segment | depreciation | 2024-06-01 → 2025-05-31 | ¥97m |
| Real Estate Businessreportable segment | revenue | 2024-06-01 → 2025-05-31 | ¥5.3bn |
| Real Estate Businessreportable segment | revenue external | 2024-06-01 → 2025-05-31 | ¥5.2bn |
| Real Estate Businessreportable segment | revenue intersegment | 2024-06-01 → 2025-05-31 | ¥49m |
| Real Estate Businessreportable segment | segment assets | at 2025-05-31 | ¥23.2bn |
| Real Estate Businessreportable segment | segment profit | 2024-06-01 → 2025-05-31 | ¥2.4bn |
| —segment total | capex | 2024-06-01 → 2025-05-31 | ¥1.9bn |
| —segment total | depreciation | 2024-06-01 → 2025-05-31 | ¥1.5bn |
| —segment total | revenue | 2024-06-01 → 2025-05-31 | ¥124.4bn |
| —segment total | revenue external | 2024-06-01 → 2025-05-31 | ¥122.6bn |
| —segment total | revenue intersegment | 2024-06-01 → 2025-05-31 | ¥1.8bn |
| —segment total | segment assets | at 2025-05-31 | ¥120.0bn |
| —segment total | segment profit | 2024-06-01 → 2025-05-31 | ¥4.2bn |
| Total Of Reportable Segments And Otherssegment total | capex | 2024-06-01 → 2025-05-31 | ¥2.8bn |
| Total Of Reportable Segments And Otherssegment total | depreciation | 2024-06-01 → 2025-05-31 | ¥1.6bn |
| Total Of Reportable Segments And Otherssegment total | revenue | 2024-06-01 → 2025-05-31 | ¥125.1bn |
| Total Of Reportable Segments And Otherssegment total | revenue external | 2024-06-01 → 2025-05-31 | ¥123.3bn |
| Total Of Reportable Segments And Otherssegment total | revenue intersegment | 2024-06-01 → 2025-05-31 | ¥1.8bn |
| Total Of Reportable Segments And Otherssegment total | segment assets | at 2025-05-31 | ¥123.1bn |
| Total Of Reportable Segments And Otherssegment total | segment profit | 2024-06-01 → 2025-05-31 | ¥3.9bn |
| Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segments | employees | at 2026-05-31 | 19 pure |
| Constructionreportable segment | employees | at 2026-05-31 | 476 pure |
| Energy Businessreportable segment | employees | at 2026-05-31 | 17 pure |
| Engineeringreportable segment | employees | at 2026-05-31 | 301 pure |
| Real Estate Businessreportable segment | employees | at 2026-05-31 | 22 pure |
Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.
All source rows · 1,916
| Item | Context | Value | Unit |
|---|---|---|---|
| Independent auditors report consolidated (text) | FilingDateInstant | Text · Plus | |
| Audit firm1 consolidated | FilingDateInstant | Original text (Japanese)有限責任監査法人トーマツ | |
| Cpa1 audit firm1 consolidated | FilingDateInstant | Original text (Japanese)會 澤 正 志 | |
| Cpa2 audit firm1 consolidated | FilingDateInstant | Original text (Japanese)大 山 顕 司 | |
| Audit opinion consolidated (text) | FilingDateInstant | Text · Plus | |
| Key audit matters consolidated (text) | FilingDateInstant | Text · Plus | |
| Overview kam consolidated (text) | FilingDateInstant | Text · Plus | |
| Short description kam consolidated | FilingDateInstant_Row1Member | Original text (Japanese)一定の期間にわたり収益を認識する方法における工事原価総額の見積り | |
| Description including reason kam consolidated (text) | FilingDateInstant_Row1Member | Text · Plus | |
| Reference kam consolidated | FilingDateInstant_Row1Member | Original text (Japanese)注記事項（連結財務諸表作成のための基本となる重要な事項）４．会計方針に関する事項（5）重要な収益及び費用の計上基準 | |
| Reference2 kam consolidated | FilingDateInstant_Row1Member | Original text (Japanese)注記事項（重要な会計上の見積り） | |
| Auditors response kam consolidated (text) | FilingDateInstant_Row1Member | Text · Plus | |
| Other information consolidated (text) | FilingDateInstant | Text · Plus | |
| Fee related information consolidated (text) | FilingDateInstant | Text · Plus | |
| Independent auditors report non consolidated (text) | FilingDateInstant | Text · Plus | |
| Audit firm1 non consolidated | FilingDateInstant | Original text (Japanese)有限責任監査法人トーマツ | |
| Cpa1 audit firm1 non consolidated | FilingDateInstant | Original text (Japanese)會 澤 正 志 | |
| Cpa2 audit firm1 non consolidated | FilingDateInstant | Original text (Japanese)大 山 顕 司 | |
| Audit opinion non consolidated (text) | FilingDateInstant | Text · Plus | |
| Key audit matters non consolidated (text) | FilingDateInstant | Text · Plus | |
| Overview kam non consolidated (text) | FilingDateInstant | Text · Plus | |
| Short description kam non consolidated | FilingDateInstant_Row1Member | Original text (Japanese)一定の期間にわたり収益を認識する方法における工事原価総額の見積り | |
| Same as kam for consolidated fskam non consolidated (text) | FilingDateInstant_Row1Member | Text · Plus | |
| Reference kam non consolidated | FilingDateInstant_Row1Member | Original text (Japanese)（一定の期間にわたり収益を認識する方法における工事原価総額の見積り） | |
| Other information non consolidated (text) | FilingDateInstant | Text · Plus | |
| Fee related information non consolidated (text) | FilingDateInstant | Text · Plus | |
| Number of submission | FilingDateInstant | 1 | |
| Net sales (5-year summary) | Prior4YearDuration | 126790000000 | JPY |
| Net sales (5-year summary) | Prior3YearDuration | 154202000000 | JPY |
| Net sales (5-year summary) | Prior2YearDuration | 135701000000 | JPY |
| Net sales (5-year summary) | Prior1YearDuration | 123349000000 | JPY |
| Net sales (5-year summary) | CurrentYearDuration | 135207000000 | JPY |
| Ordinary income loss (5-year summary) | Prior4YearDuration | 8398000000 | JPY |
| Ordinary income loss (5-year summary) | Prior3YearDuration | 4639000000 | JPY |
| Ordinary income loss (5-year summary) | Prior2YearDuration | -9343000000 | JPY |
| Ordinary income loss (5-year summary) | Prior1YearDuration | 1945000000 | JPY |
| Ordinary income loss (5-year summary) | CurrentYearDuration | 6566000000 | JPY |
| Profit loss attributable to owners of parent (5-year summary) | Prior4YearDuration | 7389000000 | JPY |
| Profit loss attributable to owners of parent (5-year summary) | Prior3YearDuration | 3291000000 | JPY |
| Profit loss attributable to owners of parent (5-year summary) | Prior2YearDuration | -7191000000 | JPY |
| Profit loss attributable to owners of parent (5-year summary) | Prior1YearDuration | 1332000000 | JPY |
| Profit loss attributable to owners of parent (5-year summary) | CurrentYearDuration | 5450000000 | JPY |
| Comprehensive income (5-year summary) | Prior4YearDuration | 7781000000 | JPY |
| Comprehensive income (5-year summary) | Prior3YearDuration | 3717000000 | JPY |
| Comprehensive income (5-year summary) | Prior2YearDuration | -7356000000 | JPY |
| Comprehensive income (5-year summary) | Prior1YearDuration | 1486000000 | JPY |
| Comprehensive income (5-year summary) | CurrentYearDuration | 6698000000 | JPY |
| Net assets (5-year summary) | Prior4YearInstant | 79946000000 | JPY |
| Net assets (5-year summary) | Prior3YearInstant | 78029000000 | JPY |
| Net assets (5-year summary) | Prior2YearInstant | 68591000000 | JPY |
Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.
Data checks · 24 of 24 passed
| balance sheet identity | pass rounding |
| balance sheet identity | pass |
| balance sheet identity | pass |
| balance sheet identity | pass rounding |
| dei present | pass |
| period resolution | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net assets | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · net income attributable to parent | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · operating cash flow | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · revenue | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |
| statement vs summary · total assets | pass |