diff --git a/contao/dca/tl_module.php b/contao/dca/tl_module.php
index 76d07ef..ff403f1 100644
--- a/contao/dca/tl_module.php
+++ b/contao/dca/tl_module.php
@@ -9,7 +9,7 @@ use Contao\StringUtil;
 $GLOBALS['TL_DCA']['tl_module']['palettes']['member_organizations'] = '{title_legend},name,headline,type;{eventmanager_legend},editPage;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
 $GLOBALS['TL_DCA']['tl_module']['palettes']['member_events'] = '{title_legend},name,headline,type;{eventmanager_legend},editPage;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
 $GLOBALS['TL_DCA']['tl_module']['palettes']['event_filter'] = '{title_legend},name,headline,type;{eventmanager_legend},cal_calendar,eventListDomId;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
-$GLOBALS['TL_DCA']['tl_module']['palettes']['eventmanager_map'] = '{title_legend},name,headline,type;{eventmanager_legend},mapShowOrganizations,organizationTypeTags,mapShowExternalOrganizations,mapShowEvents,mapInitialDisplay,mapEventColor,mapOrganizationColor,mapPitch,mapCenterMode;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
+$GLOBALS['TL_DCA']['tl_module']['palettes']['eventmanager_map'] = '{title_legend},name,headline,type;{eventmanager_legend},mapShowOrganizations,mapOrganizationListPage,organizationTypeTags,mapShowExternalOrganizations,mapShowEvents,mapInitialDisplay,mapEventColor,mapOrganizationColor,mapPitch,mapCenterMode;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
 $GLOBALS['TL_DCA']['tl_module']['palettes']['organization_edit'] = '{title_legend},name,headline,type;{eventmanager_legend},listPage,logoFolder,organizationTypeTags;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
 $GLOBALS['TL_DCA']['tl_module']['palettes']['event_edit'] = '{title_legend},name,headline,type;{eventmanager_legend},listPage,eventFolder,termsPage,frontendAuthorId,frontendArchiveId,eventTypeTags;{protected_legend:hide},protected;{expert_legend:hide},guests,cssID';
 
@@ -191,6 +191,14 @@ $GLOBALS['TL_DCA']['tl_module']['fields']['mapShowOrganizations'] = [
     'sql' => ['type' => 'string', 'length' => 1, 'fixed' => true, 'default' => ''],
 ];
 
+$GLOBALS['TL_DCA']['tl_module']['fields']['mapOrganizationListPage'] = [
+    'label' => &$GLOBALS['TL_LANG']['tl_module']['mapOrganizationListPage'],
+    'exclude' => true,
+    'inputType' => 'pageTree',
+    'eval' => ['fieldType' => 'radio', 'mandatory' => false, 'tl_class' => 'w50'],
+    'sql' => ['type' => 'integer', 'unsigned' => true, 'default' => 0],
+];
+
 $GLOBALS['TL_DCA']['tl_module']['fields']['mapShowExternalOrganizations'] = [
     'label' => &$GLOBALS['TL_LANG']['tl_module']['mapShowExternalOrganizations'],
     'exclude' => true,
diff --git a/contao/languages/de/tl_module.php b/contao/languages/de/tl_module.php
index 117f140..e4696d3 100644
--- a/contao/languages/de/tl_module.php
+++ b/contao/languages/de/tl_module.php
@@ -14,6 +14,7 @@ $GLOBALS['TL_LANG']['tl_module']['eventListDomId'] = ['Eventlisten-ID (DOM)', 'W
 $GLOBALS['TL_LANG']['tl_module']['organizationTypeTags'] = ['Anzuzeigende Organisationstypen', 'Optional: Begrenzen Sie die im Frontend anzeigbaren Organisationstyp-Tags. Leer = alle.'];
 $GLOBALS['TL_LANG']['tl_module']['eventTypeTags'] = ['Anzuzeigende Veranstaltungstypen', 'Optional: Begrenzen Sie die im Frontend anzeigbaren Veranstaltungstyp-Tags. Leer = alle.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowOrganizations'] = ['Organisationen anzeigen', 'Wenn aktiviert, werden Organisations-Marker auf der Karte dargestellt.'];
+$GLOBALS['TL_LANG']['tl_module']['mapOrganizationListPage'] = ['Seite für Organisationsliste', 'Optional: Seite, auf der die Organisationsliste liegt. Wird für den Link „mehr Infos“ im Organisations-Popup verwendet.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowExternalOrganizations'] = ['Externe Organisationen anzeigen', 'Wenn aktiviert, werden externe Organisationen (isExternal=1) zusätzlich auf der Karte dargestellt. Standard: nein.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowEvents'] = ['Veranstaltungen anzeigen', 'Wenn aktiviert, werden Event- (inkl. Orts-) Marker auf der Karte dargestellt.'];
 $GLOBALS['TL_LANG']['tl_module']['mapInitialDisplay'] = ['Initiale Anzeige', 'Definiert, welche Marker beim Laden der Karte initial angezeigt werden.'];
diff --git a/contao/languages/en/tl_module.php b/contao/languages/en/tl_module.php
index 3f10262..e02f0cf 100644
--- a/contao/languages/en/tl_module.php
+++ b/contao/languages/en/tl_module.php
@@ -14,6 +14,7 @@ $GLOBALS['TL_LANG']['tl_module']['eventListDomId'] = ['Event list ID (DOM)', 'Se
 $GLOBALS['TL_LANG']['tl_module']['organizationTypeTags'] = ['Displayed organization types', 'Optional: Limit which organization type tags can be selected in the frontend. Empty = all.'];
 $GLOBALS['TL_LANG']['tl_module']['eventTypeTags'] = ['Displayed event types', 'Optional: Limit which event type tags can be selected in the frontend. Empty = all.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowOrganizations'] = ['Show organizations', 'If enabled, organization markers are rendered on the map.'];
+$GLOBALS['TL_LANG']['tl_module']['mapOrganizationListPage'] = ['Organization list page', 'Optional: page containing the organization list. Used for the "more info" link in organization popups.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowExternalOrganizations'] = ['Show external organizations', 'If enabled, external organizations (isExternal=1) are additionally rendered on the map. Default: no.'];
 $GLOBALS['TL_LANG']['tl_module']['mapShowEvents'] = ['Show events', 'If enabled, event markers (including related locations) are rendered on the map.'];
 $GLOBALS['TL_LANG']['tl_module']['mapInitialDisplay'] = ['Initial display', 'Defines which markers are initially shown when the map is loaded.'];
diff --git a/contao/templates/frontend/event_map.html.twig b/contao/templates/frontend/event_map.html.twig
index 4b182bb..1954168 100644
--- a/contao/templates/frontend/event_map.html.twig
+++ b/contao/templates/frontend/event_map.html.twig
@@ -105,7 +105,11 @@
         width: 100%;
         min-height: 420px;
     }
+
+    .maplibregl-popup {
+        z-index: 2147483647;
+    }
 </style>
 
 <script type="application/json" id="{{ mapDataElementId|e('html_attr') }}">{{ mapItemsJson|raw }}</script>
-<script type="module" src="/bundles/mummertmediaeventmanager/assets/map-module.js?v=20260226h"></script>
+<script type="module" src="/bundles/mummertmediaeventmanager/assets/map-module.js?v=20260226i"></script>
diff --git a/public/assets/map-module.js b/public/assets/map-module.js
index 5c0028f..dfa8151 100644
--- a/public/assets/map-module.js
+++ b/public/assets/map-module.js
@@ -438,6 +438,20 @@ const popupHtmlFor = (item) => {
         ].join('');
     }
 
+    if (item.type === 'organisation') {
+        const title = sanitizeDisplayText(item.title || '');
+        const detailUrl = String(item.extra?.detailUrl || '').trim();
+        const hasDetailUrl = /^(https?:\/\/|\/)/i.test(detailUrl);
+        const detailLink = hasDetailUrl
+            ? `<div><a href="${escapeHtml(detailUrl)}">mehr Infos</a></div>`
+            : '';
+
+        return [
+            `<strong>${title}</strong>`,
+            detailLink,
+        ].join('');
+    }
+
     return `<strong>${sanitizeDisplayText(item.title)}</strong>`;
 };
 
diff --git a/src/Controller/Frontend/EventMapController.php b/src/Controller/Frontend/EventMapController.php
index d133a8b..5da0c9f 100644
--- a/src/Controller/Frontend/EventMapController.php
+++ b/src/Controller/Frontend/EventMapController.php
@@ -8,6 +8,7 @@ use Contao\CoreBundle\Controller\FrontendModule\AbstractFrontendModuleController
 use Contao\CoreBundle\DependencyInjection\Attribute\AsFrontendModule;
 use Contao\CoreBundle\Twig\FragmentTemplate;
 use Contao\ModuleModel;
+use Contao\PageModel;
 use Contao\StringUtil;
 use MummertMedia\EventManagerBundle\Service\MapModuleDataProvider;
 use Symfony\Component\HttpFoundation\Request;
@@ -52,6 +53,8 @@ class EventMapController extends AbstractFrontendModuleController
         $selectedOrganizationTagIds = [] === $selectedOrganizationTagIds
             ? []
             : array_values(array_intersect($selectedOrganizationTagIds, $availableOrganizationTagIds));
+        $organizationListPageId = (int) ($model->mapOrganizationListPage ?? 0);
+        $organizationListBaseUrl = $this->buildOrganizationListBaseUrl($organizationListPageId, $request);
         $initialDisplay = (string) ($model->mapInitialDisplay ?? self::DEFAULT_INITIAL_DISPLAY);
         $initialOrganizationTagId = (int) ($model->mapInitialOrganizationTagId ?? 0);
         $centerMode = (string) ($model->mapCenterMode ?? self::DEFAULT_CENTER_MODE);
@@ -88,7 +91,7 @@ class EventMapController extends AbstractFrontendModuleController
         $template->set('mapCenterZoom', (int) ($model->mapCenterZoom ?? 12));
         $template->set('mapPitch', $mapPitch);
         $template->set('mapItemsJson', json_encode(
-            $this->mapModuleDataProvider->getMapItems($showOrganizations, $showEvents, $showExternalOrganizations, $selectedOrganizationTagIds),
+            $this->mapModuleDataProvider->getMapItems($showOrganizations, $showEvents, $showExternalOrganizations, $selectedOrganizationTagIds, $organizationListBaseUrl),
             \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_APOS | \JSON_HEX_QUOT | \JSON_UNESCAPED_UNICODE | \JSON_THROW_ON_ERROR,
         ));
         $template->set('mapOrganizationTags', $this->mapModuleDataProvider->getOrganizationTags($selectedOrganizationTagIds));
@@ -147,4 +150,29 @@ class EventMapController extends AbstractFrontendModuleController
 
         return $parsedPitch;
     }
+
+    private function buildOrganizationListBaseUrl(int $pageId, Request $request): string
+    {
+        if ($pageId <= 0) {
+            return '';
+        }
+
+        $pageModel = PageModel::findById($pageId);
+
+        if (null === $pageModel) {
+            return '';
+        }
+
+        $frontendUrl = trim((string) $pageModel->getFrontendUrl());
+
+        if ('' === $frontendUrl) {
+            return '';
+        }
+
+        if (preg_match('#^https?://#i', $frontendUrl)) {
+            return $frontendUrl;
+        }
+
+        return rtrim($request->getSchemeAndHttpHost(), '/').'/'.ltrim($frontendUrl, '/');
+    }
 }
diff --git a/src/Service/MapModuleDataProvider.php b/src/Service/MapModuleDataProvider.php
index 5d1d77d..6d58e11 100644
--- a/src/Service/MapModuleDataProvider.php
+++ b/src/Service/MapModuleDataProvider.php
@@ -31,7 +31,7 @@ class MapModuleDataProvider
     /**
         * @return list<array{type:string,markerType:string,id:int,title:string,latitude:float,longitude:float,extra:array<string,mixed>}>
      */
-    public function getMapItems(bool $includeOrganizations = true, bool $includeEvents = true, bool $includeExternalOrganizations = false, array $selectedOrganizationTagIds = []): array
+    public function getMapItems(bool $includeOrganizations = true, bool $includeEvents = true, bool $includeExternalOrganizations = false, array $selectedOrganizationTagIds = [], string $organizationListBaseUrl = ''): array
     {
         if (!$includeOrganizations && !$includeEvents) {
             return [];
@@ -102,6 +102,7 @@ class MapModuleDataProvider
                     'extra' => [
                         'organizationTagIds' => $tagData['ids'],
                         'organizationTagLabels' => $tagData['labels'],
+                        'detailUrl' => $this->buildOrganizationDetailUrl($organizationListBaseUrl, $id),
                     ],
                 ];
             }
@@ -498,6 +499,19 @@ class MapModuleDataProvider
         }
     }
 
+    private function buildOrganizationDetailUrl(string $baseUrl, int $organizationId): string
+    {
+        $normalizedBaseUrl = trim($baseUrl);
+
+        if ('' === $normalizedBaseUrl || $organizationId <= 0) {
+            return '';
+        }
+
+        $separator = str_contains($normalizedBaseUrl, '?') ? '&' : '?';
+
+        return sprintf('%s%sshow=%d', $normalizedBaseUrl, $separator, $organizationId);
+    }
+
     /**
      * @param list<string> $candidates
      */