Who owns Thompson's WaterSeal?
Thompson's WaterSeal is owned by Sherwin-Williams (the United States, NYSE: SHW), which has owned the brand since 1998.[1] Thompson's WaterSeal was founded in 1929 in the United States and was independent until 1998.
Key facts
- Current owner
- The Sherwin-Williams Company verified
- Owned since
- Previous owner
- Independent (1929–1998)
- Owner HQ
- 🇺🇸 United States, Cleveland, Ohio
- Origin
- 🇺🇸 United States
- Founded
- 1929
- Category
- Home, garden & DIY › Home improvement › Paint & coatings
- Parent ticker
- NYSE: SHW
- Last verified
- · 1 sources
About Thompson's WaterSeal
Thompson's WaterSeal makes waterproofing treatments for decks, fences and masonry, and is the largest brand of its kind in the United States. It came to Sherwin-Williams with the Thompson Minwax acquisition in 1998. American decks are usually built from softwood that needs resealing every few years, which gives the brand a recurring market.
Ownership timeline of Thompson's WaterSeal
- 1998 – present Sherwin-Williams [1] verified
Where Thompson's WaterSeal sits in Sherwin-Williams
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
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Other brands owned by Sherwin-Williams in home, garden & diy
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Frequently asked questions
Who is the parent company of Thompson's WaterSeal?
The parent company of Thompson's WaterSeal is Sherwin-Williams, a publicly listed company headquartered in the United States.
Is Thompson's WaterSeal American?
Yes. Thompson's WaterSeal originated in the United States in 1929 and its owner, Sherwin-Williams, is also headquartered in the United States.
Since when has Sherwin-Williams owned Thompson's WaterSeal?
Sherwin-Williams has owned Thompson's WaterSeal since 1998.
Who owned Thompson's WaterSeal before Sherwin-Williams?
Thompson's WaterSeal was an independent company from its founding in 1929 until Sherwin-Williams acquired it in 1998.
Is Thompson's WaterSeal still owned by Sherwin-Williams?
Yes. As of 6 September 2026, Thompson's WaterSeal is still owned by Sherwin-Williams. 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] The Sherwin-Williams Company Annual Report on Form 10-K filed 2026-02-19 — SEC EDGAR, SEC Form 10-K, published 19 February 2026; retrieved 6 September 2026.
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