The Federation, whose members include Allied Bakeries, Warburtons and Premier Foods, supply over 80% of bread in the UK.
Kerry supplies bakery ingredients to the industry and also manufactures bread that is shredded and dried to make breadcrumbs.
Gordon Polson, director of the Federation of Bakers, said: “We welcome Kerry Ingredients and Flavours to the Federation of Bakers.
“We are delighted that membership numbers continue to build and we become a bigger collective who can speak for a large proportion of the plant bakery industry and make sure that their voice is heard.”