# Test equipment

Part ID: 9.10c · Layer 9 (Building shell, site & construction) · child of 9.10

Handheld and bench test equipment used to verify electrical and mechanical systems during commissioning and ongoing maintenance.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Doble | service | inferred | subsidiary |  |  |
| Fluke | service | inferred | subsidiary |  | with Fortive |
| Keysight | service | inferred | public | KEYS |  |
| Megger | service | inferred | private |  |  |
| Omicron | service | inferred | private |  |  |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.