diff --git a/README.md b/README.md
index 47f859de8d09ef..2424bca5339df2 100644
--- a/README.md
+++ b/README.md
@@ -134,8 +134,7 @@ via [OpenCollective](https://opencollective.com/mui) or via [Patreon](https://ww
   <a href="https://tidelift.com/subscription/pkg/npm-material-ui?utm_source=npm-material-ui&utm_medium=referral&utm_campaign=homepage" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://avatars.githubusercontent.com/u/30204434?s=192" alt="tidelift.com" title="Enterprise-ready open-source software" loading="lazy" /></a>
   <a href="https://bit.dev/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank" style="margin-rig ht: 16px;"><img height="96" width="96" src="https://avatars.githubusercontent.com/u/24789812?s=192" alt="bit.dev" title="The fastest way to share code" loading="lazy" /></a>
   <a href="https://www.text-em-all.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img src="https://avatars.githubusercontent.com/u/1262264?s=192" alt="text-em-all.com" title="Mass Text Messaging & Automated Calling" height="96" width="96" loading="lazy"></a>
-  <a href="https://online-aussie-casino.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/aussiecasinohex/923df37/logo/192.png" alt="online-aussie-casino.com" title="Aussie Gambling Guide" loading="lazy" /></a>
-  <a href="https://sumatosoft.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/sumatosoft_company/0b78570/avatar/192.png" alt="sumatosoft.com" title="We help companies to digitalize their businesses" loading="lazy" /></a>
+  <a href="https://netticasinohex.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/netticasinohex-com/71d7417/logo/192.png" alt="netticasinohex.com" title="A real giant among casino guides" loading="lazy" /></a>
   <a href="https://megafamous.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://mui.com/static/sponsors/megafamous.png" alt="megafamous.com" title="The best place to buy Instagram followers & likes." loading="lazy" /></a>
   <a href="https://www.dialmycalls.com/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/192.png" alt="dialmycalls.com" title="Send text messages, calls & emails to thousands with ease." loading="lazy" /></a>
   <a href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/192.png" alt="goread.io" title="Instagram followers, likes, power likes, views, comments, saves in minutes." loading="lazy" /></a>
diff --git a/docs/data/material/discover-more/backers/backers.md b/docs/data/material/discover-more/backers/backers.md
index 4ddf2782511e6c..c2a22f9fb2ff9f 100644
--- a/docs/data/material/discover-more/backers/backers.md
+++ b/docs/data/material/discover-more/backers/backers.md
@@ -28,8 +28,7 @@ via [OpenCollective](https://opencollective.com/mui) or via [Patreon](https://ww
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="tidelift.com" href="https://tidelift.com/subscription/pkg/npm-material-ui?utm_source=npm-material-ui&utm_medium=referral&utm_campaign=homepage" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://avatars.githubusercontent.com/u/30204434?s=96" srcset="https://avatars.githubusercontent.com/u/30204434?s=192 2x" alt="tidelift.com" title="Enterprise-ready open-source software" loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="bit.dev" href="https://bit.dev/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://avatars.githubusercontent.com/u/24789812?s=96" srcset="https://avatars.githubusercontent.com/u/24789812?s=192 2x" alt="bit.dev" title="The fastest way to share code" loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="text-em-all.com" href="https://www.text-em-all.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img src="https://avatars.githubusercontent.com/u/1262264?s=96" srcset="https://avatars.githubusercontent.com/u/1262264?s=192 2x" alt="text-em-all.com" title="Mass Text Messaging & Automated Calling" height="96" width="96" loading="lazy"></a>
-  <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="laststance.io" href="https://online-aussie-casino.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/aussiecasinohex/923df37/logo/96.png" srcset="https://images.opencollective.com/aussiecasinohex/923df37/logo/192.png 2x" alt="laststance.io" title="Aussie Gambling Guide" loading="lazy" /></a>
-  <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="sunmatosoft" href="https://sumatosoft.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/sumatosoft_company/0b78570/avatar/96.png" srcset="https://images.opencollective.com/sumatosoft_company/0b78570/avatar/192.png 2x" alt="sumatosoft.com" title="We help companies to digitalize their businesses" loading="lazy" /></a>
+  <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="laststance.io" href="https://netticasinohex.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/netticasinohex-com/71d7417/logo/96.png" srcset="https://images.opencollective.com/netticasinohex-com/71d7417/logo/192.png 2x" alt="laststance.io" title="A real giant among casino guides" loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="megafamous" href="https://megafamous.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="/static/sponsors/megafamous.png" alt="megafamous.com" title="The best place to buy Instagram followers & likes" loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="dialmycalls" href="https://www.dialmycalls.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/96.png" srcset="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/192.png 2x" alt="dialmycalls.com" title="Send text messages, calls & emails to thousands with ease." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="goread.io" href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/96.png" srcset="https://images.opencollective.com/goread_io/eb6337d/logo/192.png 2x" alt="goread.io" title="Instagram followers, likes, power likes, views, comments, saves in minutes." loading="lazy" /></a>
diff --git a/docs/src/components/home/GoldSponsors.tsx b/docs/src/components/home/GoldSponsors.tsx
index fc51ed276e331d..2641307c42be6c 100644
--- a/docs/src/components/home/GoldSponsors.tsx
+++ b/docs/src/components/home/GoldSponsors.tsx
@@ -34,18 +34,11 @@ const GOLDs = [
     href: 'https://www.text-em-all.com/?utm_source=MUI&utm_medium=referral&utm_content=homepage',
   },
   {
-    src: 'https://images.opencollective.com/aussiecasinohex/923df37/logo/40.png',
-    srcSet: 'https://images.opencollective.com/aussiecasinohex/923df37/logo/80.png 2x',
-    name: 'CasinoHEX Australia',
-    description: 'A guide to online gambling in Australia.',
-    href: 'https://online-aussie-casino.com/?utm_source=MUI&utm_medium=referral&utm_content=homepage',
-  },
-  {
-    src: 'https://images.opencollective.com/sumatosoft_company/0b78570/avatar/40.png',
-    srcSet: 'https://images.opencollective.com/sumatosoft_company/0b78570/avatar/80.png 2x',
-    name: 'SunmatoSoft',
-    description: 'Custom software development company.',
-    href: 'https://sumatosoft.com/?utm_source=MUI&utm_medium=referral&utm_content=homepage',
+    src: 'https://images.opencollective.com/netticasinohex-com/71d7417/logo/40.png',
+    srcSet: 'https://images.opencollective.com/netticasinohex-com/71d7417/logo/80.png 2x',
+    name: 'NettiCasinoHEX',
+    description: 'A real giant among casino guides.',
+    href: 'https://netticasinohex.com/?utm_source=MUI&utm_medium=referral&utm_content=homepage',
   },
   {
     src: '/static/sponsors//megafamous.png',