diff --git a/app/Livewire/PartnerFilterComponent.php b/app/Livewire/PartnerFilterComponent.php
index 8a52e6d75..99f9406cb 100644
--- a/app/Livewire/PartnerFilterComponent.php
+++ b/app/Livewire/PartnerFilterComponent.php
@@ -12,8 +12,9 @@ class PartnerFilterComponent extends Component
     // This function will be triggered when a filter is selected
     public function selectFilter($filter)
     {
-        $this->selectedFilter = $filter; // Update the filter
-        $this->dispatch('filterChanged', filter: $filter); // Dispatch an event in Livewire v3
+        $this->selectedFilter = $filter;
+        $this->dispatch('filterChanged', filter: $filter)
+            ->to(PartnerContentComponent::class);
     }
 
     public function render()
diff --git a/resources/views/livewire/filter-component.blade.php b/resources/views/livewire/filter-component.blade.php
index c31e69abd..5543d0070 100644
--- a/resources/views/livewire/filter-component.blade.php
+++ b/resources/views/livewire/filter-component.blade.php
@@ -1,9 +1,13 @@
 <div>
     <nav class="flex flex-wrap gap-2.5 justify-center items-start text-base text-black rounded-[32px] max-md:max-w-full">
         @foreach($filters as $filter)
-            <a href="#" wire:click.prevent="selectFilter('{{ $filter }}')" class="gap-2.5 self-stretch text-[16px] leading-5 hover:bg-secondary hover:text-white px-6 py-2.5 {{ $selectedFilter === $filter ? 'bg-[#1C4DA1] text-white' : 'bg-[#CCF0F9]  text-black' }} rounded-3xl max-md:px-5">
+            <button
+                type="button"
+                wire:click="selectFilter('{{ $filter }}')"
+                class="gap-2.5 self-stretch text-[16px] leading-5 hover:bg-secondary hover:text-white px-6 py-2.5 {{ $selectedFilter === $filter ? 'bg-[#1C4DA1] text-white' : 'bg-[#CCF0F9]  text-black' }} rounded-3xl max-md:px-5"
+            >
                 {{ $filter }}
-            </a>
+            </button>
         @endforeach
     </nav>
 </div>
diff --git a/resources/views/static/sponsors.blade.php b/resources/views/static/sponsors.blade.php
index acde499af..454f2b5b8 100644
--- a/resources/views/static/sponsors.blade.php
+++ b/resources/views/static/sponsors.blade.php
@@ -17,7 +17,10 @@
             }
         }
         </style>
-@section('content')
+{{-- Must use non-vue-content: Vue mounts on #app and re-renders its DOM, which
+     detaches Livewire's bound elements and leaves unbound clones. Filter tabs
+     then look clickable but never fire wire:click / filterChanged. --}}
+@section('non-vue-content')
     <section id="codeweek-sponsors-page" class="font-['Blinker'] overflow-hidden">
        <section class="flex overflow-hidden relative flex-col bg-violet-gradient">
             <div class="relative w-full transition-all">
diff --git a/tests/Feature/PartnersPageFilterTest.php b/tests/Feature/PartnersPageFilterTest.php
new file mode 100644
index 000000000..ac846fbc4
--- /dev/null
+++ b/tests/Feature/PartnersPageFilterTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Livewire\PartnerContentComponent;
+use App\Livewire\PartnerFilterComponent;
+use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Livewire\Livewire;
+use PHPUnit\Framework\Attributes\Test;
+use Tests\TestCase;
+
+final class PartnersPageFilterTest extends TestCase
+{
+    use DatabaseMigrations;
+
+    #[Test]
+    public function partners_page_renders_livewire_outside_the_vue_app_root(): void
+    {
+        $html = $this->get(route('sponsors'))->assertOk()->getContent();
+
+        $appPos = strpos($html, 'id="app"');
+        $nonVuePos = strpos($html, 'id="non-vue"');
+        $sponsorsPos = strpos($html, 'id="codeweek-sponsors-page"');
+
+        $this->assertNotFalse($appPos);
+        $this->assertNotFalse($nonVuePos);
+        $this->assertNotFalse($sponsorsPos);
+
+        // Vue mounts on #app and re-renders its DOM, which strips Livewire wire: bindings.
+        // Partner tabs must live in #non-vue so filter clicks keep working.
+        $this->assertGreaterThan(
+            $nonVuePos,
+            $sponsorsPos,
+            'Partners page must render in #non-vue, not #app'
+        );
+    }
+
+    #[Test]
+    public function selecting_a_filter_updates_partner_content(): void
+    {
+        Livewire::test(PartnerFilterComponent::class)
+            ->call('selectFilter', 'Council Presidency')
+            ->assertSet('selectedFilter', 'Council Presidency')
+            ->assertDispatched('filterChanged', filter: 'Council Presidency');
+
+        Livewire::test(PartnerContentComponent::class)
+            ->dispatch('filterChanged', filter: 'Council Presidency')
+            ->assertSet('filter', 'Council Presidency')
+            ->assertSee('Council President');
+
+        Livewire::test(PartnerContentComponent::class)
+            ->dispatch('filterChanged', filter: 'EU Code Week Supporters')
+            ->assertSet('filter', 'EU Code Week Supporters');
+    }
+}