6 companies · FY2026 results (earnings releases, consolidated)
Sanki Engineering ranks first for operating margin in the Plant Engineering industry at 11.0%. The top three are Sanki Engineering (11.0%), Mitsubishi Kakoki (10.9%) and Taihei Dengyo (10.5%).
Across the 6 companies the average is 9.3% and the median 10.1%. JGC comes last at 4.7%, a gap of 6.3 percentage points to the leader.
4 of 6 companies are above the average.
Plant Engineering Industry TOP3








Shares 1Y is a closing-price reference (vs. about a year earlier).
| Rank | Company | Operating margin | Average salary | Revenue | Operating profit |
|---|---|---|---|---|---|
| 1 | Sanki Engineering1961 | 11.0% | ¥12.3M | ¥254.7B | ¥28.0B |
| 2 | Mitsubishi Kakoki6331 | 10.9% | ¥8.59M | ¥84.2B | ¥9.2B |
| 3 | Taihei Dengyo1968 | 10.5% | ¥7.88M | ¥141.7B | ¥14.8B |
| 4 | MODEC6269 | 9.6% | ¥10.6M | ¥4.6T | ¥437.6B |
| 5 | Takuma6013 | 9.3% | ¥9.17M | ¥165.6B | ¥15.4B |
| 6 | JGC1963 | 4.7% | ¥9.31M | ¥745.3B | ¥35.4B |
Revenue and operating profit are from the latest full-year consolidated results. Average salary is for the reporting entity per its annual securities report; pure holding companies with fewer than 50 staff are excluded.