ABP Food Group has moved to reassure operators that the meatballs and sausages supplied by its Freshlink Foods division contain only the meat declared on the packaging.
The beef exporter has made the clarification after Waitrose withdrew its meatballs labelled as British beef as they suspected them of containing pork.
ABP said that DNA tests had found no non-declared species in Freshlink products.
The Waitrose recall comes after the Food Safety Authority of Ireland found that another ABP subsidiary, Silvercrest Foods, made a burger containing 29% horse meat.
Burger King has since severed ties with the supplier.
In a statement ABP said that it had carried out more than 450 DNA tests during the last two and a half years on products supplied by Freshlink. It added: "All our test results have been confirmed as negative for non-declared species.
"Freshlink will share all results directly with the FSA as part of their investigations."
The Ireland based firm supplies 120 varieties of sausage and a range of frozen formed grill steaks.