Who owns Improvac?
Improvac is owned by Zoetis (the United States, NYSE: ZTS).[1]
Evidence: Zoetis Inc. Annual Report on Form 10-K filed 2026-02-12, SEC EDGAR, 12 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- Zoetis Inc. verified
- Owner HQ
- 🇺🇸 United States, Parsippany, New Jersey
- Origin
- 🇺🇸 United States
- Category
- Pet & animal care › Pet supplies & services › Veterinary services
- Parent ticker
- NYSE: ZTS
- Last verified
- · 1 sources
About Improvac
Improvac, sold as Improvest and Vivax in some markets, reduces boar taint in pigs and suppresses oestrus in gilts. Zoetis presents it explicitly as an alternative to surgical castration, which makes it unusual in its portfolio: a vaccine whose commercial argument is an animal welfare one, replacing a routine physical procedure carried out on male piglets in pork production.
How often Zoetis names Improvac 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.
Ownership timeline of Improvac
Where Improvac sits in Zoetis
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Zoetis ownership tree →
See the full Zoetis brand portfolio (17) →
Other brands owned by Zoetis
Zoetis controls 17 brands on Brandtree, 17 of them in pet & animal care.
Also in pet & animal care
Other brands in veterinary services, and who owns them
Zoetis has more brands in veterinary services on Brandtree than any other owner: 17 of 45.
About the owner: Zoetis
Zoetis is a publicly listed company headquartered in Parsippany, New Jersey, United States, founded in 2012. Brandtree records 17 brands under its control, and it is listed as NYSE: ZTS.
Zoetis is the largest animal health company in the world by revenue, selling medicines, vaccines and diagnostics for pets and livestock. It was incorporated in Delaware in July 2012 out of what had been a business unit of Pfizer, and it markets directly in about 45 countries while selling in more than 100. Companion animals now dominate: its two biggest lines, the Simparica parasiticides and the Apoquel dermatology range, were 16 and 12 per cent of 2025 revenue, and it left the medicated feed additive business entirely in 2024.
🇺🇸 Improvac 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; Improvac is not one of them.
- 4health — Tractor Supply 🇺🇸
- Advantage — Elanco 🇺🇸
- American Journey — Chewy 🇺🇸
- Aqueon — Central Garden & Pet 🇺🇸
- Aureomycin — Phibro 🇺🇸
- BARK — BARK 🇺🇸
Frequently asked questions
Who is the parent company of Improvac?
The parent company of Improvac is Zoetis, a publicly listed company headquartered in the United States.
Is Improvac American?
Yes. Improvac originated in the United States and its owner, Zoetis, is also headquartered in the United States.
Is Improvac still owned by Zoetis?
Yes. As of 25 September 2026, Improvac is still owned by Zoetis. 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] Zoetis Inc. Annual Report on Form 10-K filed 2026-02-12 — SEC EDGAR, SEC Form 10-K, published 12 February 2026; retrieved 25 September 2026.
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