Every brand Tenaris owns
5 brands, sorted alphabetically. Brands with their own page link through; others are listed here with their source. See the company profile and ownership tree.
| Brand | Category | Origin | Held via | Stake | Since | Confidence | Source |
|---|---|---|---|---|---|---|---|
| Algoma Tubes | Oilfield services & drilling | 🇨🇦 Canada | Direct | 100% | — | verified | SEC EDGAR, Mar 2026 |
| Confab | Oilfield services & drilling | 🇧🇷 Brazil | Direct | 100% | — | verified | SEC EDGAR, Mar 2026 |
| Dalmine | Oilfield services & drilling | 🇮🇹 Italy | Direct | 100% | — | verified | SEC EDGAR, Mar 2026 |
| Hydril | Oilfield services & drilling | 🇺🇸 United States | Direct | 100% | — | verified | SEC EDGAR, Mar 2026 |
| Tenaris | Oilfield services & drilling | 🇱🇺 Luxembourg | Direct | 100% | — | verified | SEC EDGAR, Mar 2026 |