18 companies · FY2026 results (earnings releases, consolidated)
Riken Keiki ranks first for operating margin in the Precision Instruments industry at 22.5%. The top three are Riken Keiki (22.5%), Tamron (19.6%) and Rigaku (17.7%).
Across the 18 companies the average is 11.3% and the median 13.2%. Nikon comes last at -16.6%, a gap of 39.1 percentage points to the leader.
11 of 18 companies are above the average.
One company posted an operating loss: Nikon.
Precision Instruments Industry TOP3

















Shares 1Y is a closing-price reference (vs. about a year earlier).
| Rank | Company | Operating margin | Average salary | Revenue | Operating profit |
|---|---|---|---|---|---|
| 1 | Riken Keiki7734 | 22.5% | ¥7.48M | ¥55.2B | ¥12.4B |
| 2 | Tamron7740 | 19.6% | ¥8.76M | ¥85.1B | ¥16.6B |
| 3 | Rigaku268A | 17.7% | ¥10.1M | ¥94.2B | ¥16.7B |
| 4 | Noritsu Koki7744 | 17.5% | - | ¥119.2B | ¥20.8B |
| 5 | Nakanishi7716 | 17.4% | ¥5.61M | ¥81.2B | ¥14.1B |
| 6 | Hioki6866 | 16.8% | ¥10.3M | ¥40.5B | ¥6.8B |
| 7 | Horiba6856 | 15.9% | ¥7.63M | ¥333.1B | ¥53.0B |
| 8 | JEOL6951 | 14.5% | ¥8.28M | ¥179.4B | ¥26.0B |
| 9 | A&D HOLON7745 | 13.3% | - | ¥69.3B | ¥9.2B |
| 10 | Shimadzu7701 | 13.1% | ¥9.24M | ¥560.7B | ¥73.7B |
| 11 | Wacom6727 | 12.2% | ¥9.85M | ¥110.0B | ¥13.4B |
| 12 | Tokyo Keiki7721 | 8.8% | ¥6.93M | ¥61.2B | ¥5.4B |
| 13 | Citizen7762 | 8.7% | ¥7.67M | ¥346.8B | ¥30.3B |
| 14 | Nikkiso6376 | 7.1% | ¥6.79M | ¥215.6B | ¥15.3B |
| 15 | Seiko8050 | 7.0% | ¥8.78M | ¥304.7B | ¥21.2B |
| 16 | Konica Minolta4902 | 4.6% | ¥8.21M | ¥1.1T | ¥49.9B |
| 17 | Epson6724 | 3.5% | ¥7.94M | ¥1.4T | ¥49.6B |
| 18 | Nikon7731 | -16.6% | ¥8.51M | ¥677.2B | ¥-112.4B |
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.