Three will play in the Champions Cup, and two in the Challenge Cup.
It's been confirmed that five South African clubs will compete in Europe's club rugby competitions next season.
Following on from the final league standings in this season's URC, the Sharks, Bulls and Stormers will all play in the Champions Cup.
The Lions and the Cheetahs will participate in the Challenge Cup.
Dublin will host next season's finals, with both scheduled to take place at the Aviva Stadium in May.
Next season's competition format will be the same as this year, with four pool stage games taking place per team before and after Christmas.
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