Tipperary-based M&M Walshe, trading as Ribworld, will provide its meat products to supermarkets across the country.
Aldi director John Curtin said: "We have worked with Ribworld owners since Aldi first entered the Irish market, 20 years ago. "Over the last 20 years we have built up strong, fruitful relationships with over 200 Irish suppliers, and in many cases, such as this announcement today with Ribworld, we have been able to open new markets to Irish suppliers so that their exceptional quality can be found on dinner tables internationally."