Who owns CS PowerTech?
CS PowerTech is owned by Canadian Solar (Canada, NASDAQ: CSIQ).[1]
Canadian Solar owns 91% of CS PowerTech rather than all of it.
Evidence: Canadian Solar Inc. Annual Report on Form 20-F filed 2026-04-10, SEC EDGAR, 10 April 2026. Verified from filings; last checked .
Key facts
- Current owner
- Canadian Solar Inc. (91% stake) verified
- Owner HQ
- 🇨🇦 Canada, Kitchener
- Origin
- 🇺🇸 United States
- Category
- Energy › Renewables & clean energy › Solar
- Parent ticker
- NASDAQ: CSIQ
- Last verified
- · 1 sources
About CS PowerTech
CS PowerTech Inc. makes and sells solar, battery storage and other power technology products for the U.S. market. The 2025 Form 20-F says Canadian Solar directly and indirectly holds about 91% of it.
What Canadian Solar's annual report says about CS PowerTech
Sentences about CS PowerTech from Canadian Solar's latest annual filing[1], copied word for word.
We have formed a new joint venture with our majority-owned subsidiary, CSI Solar, by holding a 75.1% controlling stake in CS PowerTech, which operates U.S.-based manufacturing and sales of solar modules, solar cells and advanced energy storage systems.
How often Canadian Solar names CS PowerTech in its annual report
A plain count of the times the name appears in the text of each annual report, not counting the start of a sentence. A brand that an owner writes about more is usually one it treats as central. The brand is named more often than it was three years earlier.
Ownership timeline of CS PowerTech
- Current owner Canadian Solar (91%) [1] verified
Where CS PowerTech sits in Canadian Solar
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
- CS PowerTech (91%)
- CSI Solar (64%)
- e-STORAGE
- Recurrent Energy
Open the full Canadian Solar ownership tree →
See the full Canadian Solar brand portfolio (4) →
Other brands owned by Canadian Solar
Canadian Solar controls 4 brands on Brandtree, 4 of them in energy.
Also in energy
Other brands in solar, and who owns them
Canadian Solar has more brands in solar on Brandtree than any other owner: 3 of 11.
| Brand | Owner | Owner based in |
|---|---|---|
| DuraTrack | Array Technologies | 🇺🇸 United States |
| Enphase Energy System | Enphase | 🇺🇸 United States |
| First Solar | First Solar | 🇺🇸 United States |
| Grenergy | Grenergy | 🇪🇸 Spain |
| Shoals | Shoals | 🇺🇸 United States |
| Sunrun | Sunrun | 🇺🇸 United States |
| Xinyi Energy | Xinyi Solar | 🇭🇰 Hong Kong |
| OmniTrack | Array Technologies | 🇺🇸 United States |
About the owner: Canadian Solar
Canadian Solar is a publicly listed company headquartered in Kitchener, Canada. Brandtree records 4 brands under its control, and it is listed as NASDAQ: CSIQ.
Canadian Solar's 2025 Form 20-F says the company is incorporated in Ontario with its address in Kitchener and reports two segments: Manufacturing and Recurrent Energy. It says it holds about 64% of CSI Solar Co., Ltd., listed on the Shanghai STAR market, and about 91% of CS PowerTech Inc. in the United States.
Canadian Solar: full profile, brands and acquisition history →
🇺🇸 CS PowerTech and other American brands
Brandtree records a controlling owner for 2,399 brands that began in the United States. 461 of them (19%) are now controlled by a company headquartered in another country, CS PowerTech among them.
- AES Ohio — AES 🇺🇸
- Agway Energy Services — Suburban Propane 🇺🇸
- Alabama Power — Southern Company 🇺🇸
- AmeriGas — UGI 🇺🇸
- American Transmission Company — WEC Energy Group 🇺🇸
- Arch Resources — Core Natural Resources 🇺🇸
Frequently asked questions
Who is the parent company of CS PowerTech?
The parent company of CS PowerTech is Canadian Solar, a publicly listed company headquartered in Canada.
Is CS PowerTech American or Canadian?
CS PowerTech originated in the United States, but it is owned today by Canadian Solar, which is headquartered in Canada. So CS PowerTech is an American-origin brand under Canadian ownership.
Is CS PowerTech still owned by Canadian Solar?
Yes. As of 9 October 2026, CS PowerTech is still owned by Canadian Solar (91% stake). 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] Canadian Solar Inc. Annual Report on Form 20-F filed 2026-04-10 — SEC EDGAR, SEC Form 20-F, published 10 April 2026; retrieved 5 October 2026.
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