Tenaris: brands it owns and its ownership tree
Tenaris (NYSE: TS) is a publicly listed company headquartered in Luxembourg, Luxembourg that owns 5 consumer brands.[1][2]
Tenaris S.A. is a Luxembourg company that its 2025 Form 20-F says grew from Siderca, formed in 1948. San Faustin S.A. beneficially owned 66.13 percent of its share capital and 70.07 percent of the votes at 31 December 2025; 28.17 percent traded on the Italian and Mexican exchanges and its ADSs trade on the NYSE.
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Company facts
- Legal name
- Tenaris S.A.
- Type
- publicly listed company · see all publicly listed company owners
- Headquarters
- 🇱🇺 Luxembourg, Luxembourg
- Tickers
- NYSE: TS
- Revenue
- $12 billion (2025)[2]
- SEC CIK
- 0001190723
- Last verified
- · 2 sources
What Tenaris's annual report says about its business
Read from Tenaris's latest annual filing[1]. Each line gives the sentence the filing uses, copied word for word.
Segments the filing names
- Tubes:
The following table shows our net sales by business segment for the periods indicated therein: Millions of U.S. dollars For the year ended December 31, 2025 2024 2023 Tubes 11,400 95% 11,907 95% 14,185 95%
- Others:
The following table shows our net sales by business segment for the periods indicated therein: Millions of U.S. dollars For the year ended December 31, 2025 2024 2023 Tubes 11,400 95% 11,907 95% 14,185 95% Others 581 5% 617 5% 684 5%
Acquisitions and disposals named in the filing
- Acquired: global pipe-coating business of Mattr (At the end of 2023).
At the end of 2023, for example, we acquired the global pipe-coating business of Mattr, which has enhanced our range of pipe-coating technologies and reinforced our capability to provide integrated pipe and coating solutions for offshore pipelines.
- Acquired: scrap processing business in Beaver Falls in Pennsylvania, United States (In 2025).
In 2025, we acquired a scrap processing business in Beaver Falls in Pennsylvania, United States.
- Acquired: IPSCO (2020).
In 2020, we acquired IPSCO, a U.S. seamless and welded pipe producer,
- Acquired: Republic Tube's OCTG pipe processing facility in Houston (September 2023).
and, in September 2023, we acquired Republic Tube's OCTG pipe processing facility in Houston with heat treatment and threading operations,
- Acquired: TuboCaribe.
In Colombia, we have established a leading position in the market for OCTG products since 2006, following our acquisition of TuboCaribe, a welded pipe manufacturing facility located in Cartagena.
- Acquired: SSPC (January 2019).
In January 2019, we acquired 47.8% of SSPC, a listed ERW steel pipe producer.
Tenaris in numbers
- Tenaris owns 5 consumer brands tracked here across 1 top-level categories; the largest is energy with 5 brands.[1]
- 4 of its brands originated outside Luxembourg.
Tenaris financial history
Headline figures from Tenaris's annual reports filed with the US Securities and Exchange Commission, in USD as reported, fiscal years ending 2020–2025. Revenue moved from $5.15bn to $12bn, an average of 18.4% a year (calculated).
| Fiscal year ended | Revenue | Operating income | Operating margin | Net income | Total assets | Long-term debt | Filing |
|---|---|---|---|---|---|---|---|
| $12bn | $2.28bn | 19.1% | $1.97bn | $20.1bn | $368,000 | 20-F | |
| $12.5bn | $2.42bn | 19.3% | $2.08bn | $20.5bn | $11.4m | 20-F | |
| $14.9bn | $4.32bn | 29.0% | $3.96bn | $21.1bn | $48.3m | 20-F | |
| $11.8bn | $2.96bn | 25.2% | $2.55bn | $17.6bn | $46.4m | 20-F | |
| $6.52bn | $707.5m | 10.8% | $1.05bn | $14.4bn | $111.4m | 20-F | |
| $5.15bn | $-663,071,000 | -12.9% | $-642,417,000 | $13.7bn | $315.7m | 20-F |
Source: SEC XBRL company facts. A dash means the company did not report that line in a form we could read. Figures for a year can be restated in a later filing; the latest filing's number is shown.
Everything Tenaris owns
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Full-screen interactive tree →
Brand portfolio by category
Recent changes to this record
Tenaris SEC filings
The documents behind the figures on this page, as listed in the SEC's EDGAR index. Each links to the filing itself.
Annual reports
- Annual report (foreign issuer), filed (20-F)
- Annual report (foreign issuer), filed (20-F)
- Annual report (foreign issuer), filed (20-F)
- Annual report (foreign issuer), filed (20-F)
- Annual report (foreign issuer), filed (20-F)
- Annual report (foreign issuer), filed (20-F)
Recent current and quarterly reports
| Filed | Form | What it declares |
|---|---|---|
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer | |
| 6-K | Report of a foreign private issuer |
Frequently asked questions
What brands does Tenaris own?
Tenaris owns 5 consumer brands tracked here, including Tenaris, Hydril, Algoma Tubes, Confab and Dalmine.
Is Tenaris a Luxembourgish company?
Yes. Tenaris is headquartered in Luxembourg, Luxembourg.
Who owns Tenaris?
Tenaris is a publicly listed company owned by its shareholders; it trades as TS on the NYSE.
Sources (2) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Tenaris S.A. Annual Report on Form 20-F filed 2026-03-31 — SEC EDGAR, SEC Form 20-F, published 31 March 2026; retrieved 5 October 2026.
- [2] Tenaris S.A.: Form 20-F for the year ended 2025-12-31 (revenue) — SEC EDGAR, SEC Form 20-F, published 31 March 2026; retrieved 5 October 2026.
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