diff --git a/api-v3/src/inspection-visits/inspection-planning-hierarchy.service.ts b/api-v3/src/inspection-visits/inspection-planning-hierarchy.service.ts
index 34993b5..42e1cd8 100644
--- a/api-v3/src/inspection-visits/inspection-planning-hierarchy.service.ts
+++ b/api-v3/src/inspection-visits/inspection-planning-hierarchy.service.ts
@@ -67,27 +67,34 @@ export class InspectionPlanningHierarchyService {
     at?: string,
   ): Promise<{ data: InspectionPlanningHierarchyItem[] }> {
     await this.requireType(areaId, 'area', 'El Área seleccionada no es válida');
-    const effectiveAt = at ? new Date(at) : new Date();
-    if (!Number.isFinite(effectiveAt.getTime())) {
-      throw new BadRequestException({
-        code: 'INSPECTION_PLANNING_DATE_INVALID',
-        message: 'La fecha de planificación no es válida',
-      });
+    if (at) {
+      const effectiveAt = new Date(at);
+      if (!Number.isFinite(effectiveAt.getTime())) {
+        throw new BadRequestException({
+          code: 'INSPECTION_PLANNING_DATE_INVALID',
+          message: 'La fecha de planificación no es válida',
+        });
+      }
     }
+    // Modelo autoritativo: la Empresa pertenece al Yacimiento. Para mantener el
+    // selector de planificación por Área, se proyectan las Empresas de todos los
+    // Yacimientos activos que pertenecen a esa Área.
     const data = await this.dataSource.query(`
-      SELECT DISTINCT company.id, company.code, company.name
-      FROM area_company_relations relation
-      INNER JOIN assets company ON company.id=relation.company_id
-      INNER JOIN asset_types type ON type.id=company.asset_type_id
-      WHERE relation.area_id=$1::uuid
-        AND relation.relation_role='OPERATOR'
-        AND relation.valid_from <= $2::timestamptz
-        AND (relation.valid_until IS NULL OR relation.valid_until > $2::timestamptz)
-        AND type.operational_role='COMPANY'
-        AND type.is_active=true
+      SELECT DISTINCT company.id, company.code, COALESCE(profile.legal_name,company.name) AS name
+      FROM assets yacimiento
+      INNER JOIN asset_types yacimiento_type ON yacimiento_type.id=yacimiento.asset_type_id
+      INNER JOIN assets company ON company.id=yacimiento.operator_company_id
+      INNER JOIN asset_types company_type ON company_type.id=company.asset_type_id
+      LEFT JOIN organization_profiles profile ON profile.asset_id=company.id
+      WHERE yacimiento.parent_id=$1::uuid
+        AND lower(yacimiento_type.code)='yacimiento'
+        AND yacimiento_type.is_active=true
+        AND yacimiento.information_status<>'INACTIVE'
+        AND company_type.operational_role='COMPANY'
+        AND company_type.is_active=true
         AND company.information_status<>'INACTIVE'
-      ORDER BY company.name, company.code
-    `, [areaId, effectiveAt]) as InspectionPlanningHierarchyItem[];
+      ORDER BY name, company.code
+    `, [areaId]) as InspectionPlanningHierarchyItem[];
     return { data };
   }
 
@@ -106,4 +113,4 @@ export class InspectionPlanningHierarchyService {
       throw new BadRequestException({ code: 'INSPECTION_PLANNING_HIERARCHY_INVALID', message });
     }
   }
-}
\ No newline at end of file
+}