Who makes IAMS dog food?

Mars Petcare makes IAMS dry food at its Mattoon, Illinois site, according to its June 2019 anniversary announcement.

Owner
MarsMarsIAMS rights in specified markets only
Mars news
Made by
MMars PetcareMattoon IAMS production; 2019
Mars news
Made in
MattoonMattoon IAMS production; 2019
Mars news
Illustration of a generic beverage can, not a photo of IAMS dog food.
Exploded illustration of a generic beverage can1Pull tab2Lid3Can4Contents

SuppliersMap research desk · Source records checked against 4 sources, at least 1 published by Mars Petcare in North America · How we check

IAMS dog food supply chain

OwnerMarsMars
BrandIIAMS dog food
Made byMMars Petcare
Made inMattoon
Key part supplier: Not named by Mars Petcare in North America Not disclosed

This page covers that production program without identifying the origin of an individual bag, ingredients, all current wet and dry recipes or another brand’s treats. [4]

Is IAMS dog food made in China or the USA?

The 94% locally produced figure in Mars’s 2025 US release covers all its US-sold products. It cannot be turned into a 94% IAMS figure or an all-US ingredients claim. [3]

Same factory, different label

The completed acquisition announcement places IAMS alongside Pedigree and Royal Canin in the Mars portfolio. Shared ownership does not establish identical food or shared production for every recipe. [2]

What each source proves

2026-04-08

Pprnewswire.com

Mars announces IAMS and Strava partnership

Mars news2014-08-01

Pprnewswire.com

Mars completes P&G pet-food acquisition in major markets

Mars news2025-07-29

Mmars.com

Mars announces US manufacturing investment through 2026

Mars news2019-06-21

Pprnewswire.com

Mars Petcare: Mattoon production and named pet-food brands

Mars news

IAMS dog food milestones

  1. Mars identifies IAMS as its pet-nutrition brand and Strava as a campaign partner, not a pet-food manufacturer. [1]
  2. Completed IAMS/Eukanuba/Natura acquisition in North America, Latin America and selected countries; places IAMS alongside Mars Pedigree/Royal Canin portfolio. Does not establish universal global rights. [2]
  3. Names Royal Canin and Pedigree among Mars-produced brands and a US manufacturing investment plan. The 94% locally produced figure covers all Mars products sold in the US, not any individual pet-food brand. [3]
  4. Mars Petcare identifies its Mattoon operation and names IAMS among the brands it manufactures there. [4]

Questions people ask

Who makes iams dog food?

Mars Petcare identifies IAMS among the brands manufactured at its Mattoon site in its June 2019 anniversary announcement. This is a named dry-food production program, without allocating every recipe or another brand’s treat format to the same line. [4]

Who owns iams dog food?

Mars acquired IAMS in North America, Latin America and selected other countries. That market scope matters: the 2014 deal should not be expanded into a claim about every country’s brand rights. [2]

Where is iams dog food made?

Mattoon, Illinois, United States, is supported for that IAMS production program in 2019. The site’s product list does not trace an individual bag, establish ingredient origin, or locate all current wet and dry recipes. [4]

Sources

  1. [1] PMars announces IAMS and Strava partnership2026-04-08 · company · Source record checked 2026-10-21
  2. [2] PMars completes P&G pet-food acquisition in major markets2014-08-01 · company · Source record checked 2026-10-21
  3. [3] MMars announces US manufacturing investment through 20262025-07-29 · company · Source record checked 2026-10-21
  4. [4] PMars Petcare: Mattoon production and named pet-food brands2019-06-21 · company · Source record checked 2026-10-26