Prices as of 2026/10/30 close
Company comparison · Civil Engineering & Infrastructure
Penta-Ocean is the bigger company, with revenue of ¥794.3B — 1.6x Kumagai Gumi's ¥487.7B.
Penta-Ocean earns more on each yen of sales, with an operating margin of 7.0% — 1.4 points above Kumagai Gumi (5.6%).
Revenue growth in the latest results: Penta-Ocean +9.2%, Kumagai Gumi −2.2%. For next year, Kumagai Gumi guides for the fastest operating profit growth (+14.1%).
Penta-Ocean pays more on average — ¥9.36M against ¥9.18M at Kumagai Gumi.
Over the past year the shares moved Penta-Ocean −1.4%, Kumagai Gumi −8.1%.
Head-to-head wins16 metrics
One win per metric for the company with the best value. Metrics with no better or worse (P/E, average age, employees) are excluded.
ScaleInvestors
Penta-Ocean aheadPenta-Ocean 3 : Kumagai Gumi 0
Revenue: Penta-Ocean ¥794.3B / Kumagai Gumi ¥487.7B
ProfitabilityInvestors
Penta-Ocean aheadPenta-Ocean 4 : Kumagai Gumi 0
Operating margin: Penta-Ocean 7.0% / Kumagai Gumi 5.6%
GrowthInvestors
Penta-Ocean aheadPenta-Ocean 3 : Kumagai Gumi 1
Revenue growth (YoY): Penta-Ocean +9.2% / Kumagai Gumi −2.2%
Stock & balance sheetInvestors
Penta-Ocean aheadPenta-Ocean 2 : Kumagai Gumi 1
Share price, 1 year: Penta-Ocean −1.4% / Kumagai Gumi −8.1%
Pay & workforceJob seekers
EvenPenta-Ocean 1 : Kumagai Gumi 1
Average salary: Penta-Ocean ¥9.36M / Kumagai Gumi ¥9.18M
| Metric | Penta-Ocean | Kumagai Gumi | Gap |
|---|---|---|---|
| Revenue | ◎¥794.3B | ¥487.7B | 1.6x |
| Operating profit | ◎¥55.3B | ¥27.1B | 2.0x |
| Net income | ◎¥34.7B | ¥20.1B | 1.7x |
| Metric | Penta-Ocean | Kumagai Gumi | Gap |
|---|---|---|---|
| Operating margin | ◎7.0% | 5.6% | 1.4pt |
| Net margin | ◎4.4% | 4.1% | 0.3pt |
| ROE | ◎18.7% | 10.9% | 7.8pt |
| Revenue per employee | ◎¥231M | ¥178M | 1.3x |
| Metric | Penta-Ocean | Kumagai Gumi | Gap |
|---|---|---|---|
| Revenue growth (YoY) | ◎+9.2% | −2.2% | 11.4pt |
| Operating profit growth (YoY) | ◎+154.9% | +89.5% | 65.4pt |
| Guidance: revenue growthnext FY plan | ◎+3.0% | +2.5% | 0.5pt |
| Guidance: op. profit growthnext FY plan | +6.7% | ◎+14.1% | 7.4pt |
| Metric | Penta-Ocean | Kumagai Gumi | Gap |
|---|---|---|---|
| Share price, 1 year | ◎−1.4% | −8.1% | 6.7pt |
| Share price, 3 months | ◎−7.3% | −12.9% | 5.6pt |
| P/E (trailing)lower = cheaper | 10.8x | 10.6x | |
| Equity ratio | 25.2% | ◎41.8% | 16.7pt |
| Share price (close) | ¥1,354 | ¥1,240 |
◎ marks the best value for each metric. Revenue and profit are from the latest full-year earnings release; share prices are closing-price references; P/E = latest close ÷ trailing EPS. For banks and some other financials, revenue means ordinary income.
| Metric | Penta-Ocean | Kumagai Gumi | Gap |
|---|---|---|---|
| Average salary | ◎¥9.36M | ¥9.18M | ¥0.18M |
| Starting salary (monthly) | ¥300,000 | ¥300,000 | ¥0 |
| Average tenure | 16.7 yrs | ◎18.6 yrs | 1.9 |
| Average age | 41.3 | 44.0 | 2.7 |
| Employees | 3,439 | 2,740 | 1.3x |
Average salary is for the reporting (parent) company and is affected by average age and job mix. Holding companies with few employees are left out of the salary comparison.
Close (Oct 30, 2026)
¥1,354-1.4% (1Y)
Penta-Ocean -1.4% over 1Y. Compared: Kumagai Gumi -8.1%.
Reference chart of daily closing prices, not real-time quotes (split-adjusted; weekly closes before the last year). Each line shows the % change from the start of the period. Updated Oct 30, 2026.
Penta-Ocean4 segments
Kumagai Gumi3 segments
AAverage annual salary from the securities filings: Penta-Ocean ¥9.36M, Kumagai Gumi ¥9.18M. Penta-Ocean pays the most. Averages also depend on staff age and job mix, so check the average age too (Penta-Ocean 41.3, Kumagai Gumi 44.0).
ARevenue in the latest results: Penta-Ocean ¥794.3B, Kumagai Gumi ¥487.7B. Penta-Ocean is the bigger company, with revenue of ¥794.3B — 1.6x Kumagai Gumi's ¥487.7B.
AOperating margins: Penta-Ocean 7.0%, Kumagai Gumi 5.6%. Penta-Ocean turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): Penta-Ocean −1.4%, Kumagai Gumi −8.1%. Penta-Ocean has risen the most.
Comparing 2 companies (up to 4)
Sources: earnings releases (kessan tanshin), annual securities reports and other public information. Share prices are closing-price references, not real-time. Our data may contain errors; investment decisions are your own responsibility.
