Who owns Seresto?
Seresto is owned by Elanco (the United States, NYSE: ELAN), which has owned the brand since 1 August 2020.[1][2]
Evidence: Elanco Animal Health Incorporated Annual Report on Form 10-K filed 2026-02-24, SEC EDGAR, 24 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- Elanco Animal Health Incorporated verified
- Owned since
- Owner HQ
- 🇺🇸 United States, Indianapolis
- Origin
- 🇺🇸 United States
- Category
- Pet & animal care › Pet supplies & services › Veterinary services
- Parent ticker
- NYSE: ELAN
- Trademark registrant
- Elanco Animal Health GmbH (USPTO)
- Last verified
- · 3 sources
About Seresto
Seresto is a flea and tick collar for cats and dogs that Elanco describes as using low dose, slow-release technology to kill and repel fleas and ticks. Its 10-K says about 60% of annual sales fall in the first half of the year, and that the Seresto formulation patent expires in the United States in September 2027. Elanco lists it in the animal-health portfolio described in its annual report on Form 10-K for the year ended 31 December 2025.
What Elanco's annual report says about Seresto
Sentences about Seresto from Elanco's latest annual filing[1], copied word for word.
Our Advantage Family of brands ( Advantage , K-9 Advantix , Advocate , AdTab , among others) and Seresto products are over-the-counter treatments for the prevention and elimination of fleas and ticks and complement our prescription parasiticide products, which include our Credelio Family of brands ( Credelio , Credelio Cat , Credelio Plus , Credelio Quattro ).
In 2025, our top five selling products and/or product families were our Advantage Family (cats and dogs), Seresto (cats and dogs), our Credelio Family (cats and dogs), Rumensin (cattle) and Maxiban / Monteban (poultry).
Cats, Dogs Seresto Flea and tick collar with a low dose, slow-release technology that kills and repels fleas and ticks which may transmit vector-borne diseases and kills lice for up to 8 months.
How often Elanco names Seresto 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 less often than it was three years earlier.
Trademark record for Seresto
The USPTO record for the Seresto mark lists Elanco Animal Health GmbH as the owner of record (serial number 98268110). That name matches the owner named above.[3]
Ownership timeline of Seresto
Where Seresto sits in Elanco
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Elanco ownership tree →
See the full Elanco brand portfolio (15) →
Other brands owned by Elanco
Elanco controls 15 brands on Brandtree, 15 of them in pet & animal care.
Also in pet & animal care
Other brands in veterinary services, and who owns them
The 45 brands in veterinary services on Brandtree belong to 7 owners. The largest is Zoetis, with 17; Elanco has 10.
About the owner: Elanco
Elanco is a publicly listed company headquartered in Indianapolis, United States, founded in 1954. Brandtree records 15 brands under its control, and it is listed as NYSE: ELAN.
Elanco Animal Health is an Indianapolis animal health company with pet health and farm animal businesses. Its 10-K says it has a heritage dating to 1954 as a business unit of Eli Lilly and Company, was incorporated independently in September 2018 and separated in March 2019, and in August 2020 acquired Bayer Animal Health, which it calls the largest acquisition in industry history. It sells flea and tick, dermatology and pain products for pets and feed additives, vaccines and antibiotics for livestock.
🇺🇸 Seresto 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; Seresto is not one of them.
- 4health — Tractor Supply 🇺🇸
- American Journey — Chewy 🇺🇸
- Apoquel — Zoetis 🇺🇸
- Aqueon — Central Garden & Pet 🇺🇸
- Aureomycin — Phibro 🇺🇸
- BARK — BARK 🇺🇸
Frequently asked questions
Who is the parent company of Seresto?
The parent company of Seresto is Elanco, a publicly listed company headquartered in the United States.
Is Seresto American?
Yes. Seresto originated in the United States and its owner, Elanco, is also headquartered in the United States.
Since when has Elanco owned Seresto?
Elanco has owned Seresto since 1 August 2020.
Is Seresto still owned by Elanco?
Yes. As of 9 October 2026, Seresto is still owned by Elanco. The ownership record was last checked against primary sources on that date.
Sources (3) & 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] Elanco Animal Health Incorporated Annual Report on Form 10-K filed 2026-02-24 — SEC EDGAR, SEC Form 10-K, published 24 February 2026; retrieved 2 October 2026.
- [2] Elanco Animal Health Incorporated Form 8-K filed 2020-08-03: completion of the acquisition of Bayer Animal Health — SEC EDGAR, SEC Form 8-K, published 3 August 2020; retrieved 2 October 2026.
- [3] USPTO: SERESTO, serial 98268110 — United States Patent and Trademark Office, Trademark registry; retrieved 2 October 2026.
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