Sportsbook and iGaming software provider Altenar has extended its long-term partnership with Gran Madrid | Casino Online, the flagship online betting brand operated by Gran Madrid. The agreement ensures Altenar will continue to provide its sportsbook technology for the regulated Spanish market

Spain remains one of Europe’s most mature regulated betting markets, and the renewal contributes to Altenar’s standing across Southern Europe. The renewed deal also builds on the companies’ existing partnership. 

Gran Madrid | Casino Online will continue using Altenar’s sportsbook platform, built with flexibility and a wide feature set for Spanish bettors. The agreement also supports Gran Madrid’s cross-channel strategy, complementing its established retail sportsbook operations across its casino venues.

Since the partnership began, Gran Madrid | Casino Online has built out its sportsbook offering by combining Altenar’s technology with its own position in the Spanish gaming market. The operator draws on Altenar’s market coverage, trading capabilities and localization features built for regulated jurisdictions.

“We are delighted to extend our partnership with Gran Madrid | Casino Online. Over the course of our collaboration, we have built a strong relationship based on trust, performance and a shared commitment to delivering an outstanding sportsbook experience for Spanish players,” said Antonis Karakousis, Director of Operations at Altenar.

“Spain remains one of Europe’s most mature regulated markets, and we are proud to continue supporting Gran Madrid I Casino Online with a sportsbook solution that combines flexibility, reliability and local expertise. We look forward to building on the success we have achieved together and supporting their future growth across both online and retail channels,” Karakousis added.

Sportsbook turnover at Gran Madrid | Casino Online rose 21% year-on-year in H1 2026 compared with H1 2025, according to the companies.

Renewing our partnership with Altenar reflects the success of our collaboration to date. Their technology, product innovation and understanding of regulated markets have consistently helped us strengthen our sportsbook offering and meet the expectations of our customers,” said José Félix Herreros, Country Manager at Gran Madrid.

“We value Altenar’s ongoing support and commitment to our business, and we look forward to continuing to work together as we further develop our betting experience in the Spanish market,” said Herreros.

Original article: https://www.yogonet.com/international/news/2026/07/31/125638-altenar-renews-sportsbook-deal-with-gran-madrid–casino-online-in-spain