Who owns Duro Dyne?
Duro Dyne is owned by Lennox (the United States, NYSE: LII), which has owned the brand since 2025.[1]
Evidence: Lennox International Inc. Annual Report on Form 10-K filed 2026-02-17, SEC EDGAR, 17 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- Lennox International Inc. verified
- Owned since
- Owner HQ
- 🇺🇸 United States, Richardson
- Origin
- 🇺🇸 United States
- Category
- Home, garden & DIY › Home improvement › Building materials
- Parent ticker
- NYSE: LII
- Last verified
- · 1 sources
About Duro Dyne
Duro Dyne makes air distribution accessories and other engineered components for heating and cooling systems, and its range includes the Dyna-Tite and DuroZone brands. Lennox completed the purchase of Duro Dyne in October 2025, together with Supco, saying the two businesses' HVAC parts and supplies complemented its residential and commercial offerings. Duro Dyne reports in Lennox's Building Climate Solutions segment and is sold through independent distributors.
Ownership timeline of Duro Dyne
Where Duro Dyne sits in Lennox
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Lennox ownership tree →
See the full Lennox brand portfolio (6) →
Other brands owned by Lennox
Lennox controls 6 brands on Brandtree, 2 of them in home, garden & diy.
Also in home, garden & diy
Other brands in building materials, and who owns them
The 104 brands in building materials on Brandtree belong to 33 owners. The largest is James Hardie, with 8.
| Brand | Owner | Owner based in |
|---|---|---|
| Golden Bay | Fletcher Building | 🇳🇿 New Zealand |
| Artevia | Holcim | 🇨🇭 Switzerland |
| AZEK Exteriors | James Hardie | 🇮🇪 Ireland |
| Blenture | Votorantim Cimentos | 🇧🇷 Brazil |
| Adbri | CRH | 🇮🇪 Ireland |
| Byggmakker | Kesko | 🇫🇮 Finland |
| Cacique Max | Loma Negra | 🇦🇷 Argentina |
| Alutions | Tecnoglass | 🇨🇴 Colombia |
About the owner: Lennox
Lennox is a publicly listed company headquartered in Richardson, United States, founded in 1895. Brandtree records 6 brands under its control, and it is listed as NYSE: LII.
Lennox International makes heating, air-conditioning and commercial refrigeration equipment for North America and is based in Richardson, Texas. It traces its start to 1895 in Marshalltown, Iowa, and went public in 1999. In 2025 it reported $5,195.3 million of net sales across two segments, Home Comfort Solutions and Building Climate Solutions. It sold its European operations in the fourth quarter of 2023 and bought the Duro Dyne and Supco parts businesses in October 2025. It also holds 49.9% of joint ventures with Samsung and Ariston.
🇺🇸 Duro Dyne and other American brands
Brandtree records a controlling owner for 2,570 brands that began in the United States. 492 of them (19%) are now controlled by a company headquartered in another country; Duro Dyne is not one of them.
- 3 Day Blinds — Hunter Douglas 🇳🇱
- 7-Eleven — Seven & i 🇯🇵
- AMES — Griffon 🇺🇸
- AZEK Exteriors — James Hardie 🇮🇪
- Alamo Cement — Buzzi 🇮🇹
- American Olean — Mohawk 🇺🇸
Frequently asked questions
Who is the parent company of Duro Dyne?
The parent company of Duro Dyne is Lennox, a publicly listed company headquartered in the United States.
Is Duro Dyne American?
Yes. Duro Dyne originated in the United States and its owner, Lennox, is also headquartered in the United States.
Since when has Lennox owned Duro Dyne?
Lennox has owned Duro Dyne since 2025.
Is Duro Dyne still owned by Lennox?
Yes. As of 29 October 2026, Duro Dyne is still owned by Lennox. The ownership record was last checked against primary sources on that date.
Sources (1) & 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] Lennox International Inc. Annual Report on Form 10-K filed 2026-02-17 — SEC EDGAR, SEC Form 10-K, published 17 February 2026; retrieved 26 October 2026.
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