Under the multi-year deal, Kambi will continue to provide Sun International with its sports betting technology and services across online and retail.
Kambi and Sun International have been working together across both channels in the South African market since November 2017.
Listed on the Johannesburg Stock Exchange, Sun International operates online betting brand SunBet and also owns a number of major casinos and hotel resorts.
“Sun International is delighted to continue its successful sports betting partnership with Kambi and to continue leveraging the company’s award-winning technology and services,” SunBet chief executive Simon Gregory said.
“We have ambitious plans for the SunBet brand over the coming years and I am thrilled we will continue to do this with the support of a world-leading B2B sportsbook like Kambi.”
Kambi chief executive Kristian Nylén added: “We are pleased to have extended our sportsbook partnership with Sun International, one of the continent’s premier gaming and hospitality groups.
“Since we first partnered in 2017, Sun International has become a valuable partner to Kambi and we look forward to seeing the company’s SunBet online betting brand continue to go from strength-to-strength.”