In 2014 , however , Mars Corporation purchased Procter & Gamble 's pet food brands ( IAMS , Eukanuba and Natura ) from the company .
That today there are only four manufacturers .
In 2014 , however , Mars Corporation purchased Procter & Gamble 's pet food brands ( IAMS , Eukanuba and Natura ) from the company , meaning that today there are only four manufacturers .