diff --git a/app/Services/Sales/SalesDevelopmentApprovalService.php b/app/Services/Sales/SalesDevelopmentApprovalService.php
index bad33a04..1d2effbd 100644
--- a/app/Services/Sales/SalesDevelopmentApprovalService.php
+++ b/app/Services/Sales/SalesDevelopmentApprovalService.php
@@ -65,7 +65,7 @@ public function getStats(): array
     public function getPendingApprovals(?string $search = null, int $perPage = 10): LengthAwarePaginator
     {
         $query = SalesTenantManagement::query()
-            ->with(['tenant', 'salesPartner.user', 'manager'])
+            ->with(['tenant', 'tenantProspect', 'salesPartner.user', 'manager'])
             ->where('sales_progress', 100)
             ->where('manager_progress', 100)
             ->where('hq_status', SalesTenantManagement::HQ_STATUS_PENDING);
@@ -96,7 +96,7 @@ public function getInProgressItems(?string $search = null, int $perPage = 10): L
         ];
 
         $query = SalesTenantManagement::query()
-            ->with(['tenant', 'salesPartner.user', 'manager'])
+            ->with(['tenant', 'tenantProspect', 'salesPartner.user', 'manager'])
             ->where('sales_progress', 100)
             ->where('manager_progress', 100)
             ->whereIn('hq_status', $progressStatuses);
@@ -118,7 +118,7 @@ public function getInProgressItems(?string $search = null, int $perPage = 10): L
     public function getCompletedItems(?string $search = null, int $perPage = 10): LengthAwarePaginator
     {
         $query = SalesTenantManagement::query()
-            ->with(['tenant', 'salesPartner.user', 'manager'])
+            ->with(['tenant', 'tenantProspect', 'salesPartner.user', 'manager'])
             ->where('hq_status', SalesTenantManagement::HQ_STATUS_HANDOVER);
 
         // 검색
@@ -233,6 +233,7 @@ public function getDetail(int $id): SalesTenantManagement
     {
         return SalesTenantManagement::with([
             'tenant',
+            'tenantProspect',
             'salesPartner.user',
             'manager',
             'contractProducts.product',
diff --git a/resources/views/sales/development/partials/completed-list.blade.php b/resources/views/sales/development/partials/completed-list.blade.php
index 3108afaa..804a22da 100644
--- a/resources/views/sales/development/partials/completed-list.blade.php
+++ b/resources/views/sales/development/partials/completed-list.blade.php
@@ -12,14 +12,17 @@
             @forelse($completedItems as $item)
             @php
                 $tenant = $item->tenant;
-                $companyName = $tenant?->company_name ?? '알 수 없음';
+                $prospect = $item->tenantProspect;
+                $companyName = $tenant?->company_name ?? $prospect?->company_name ?? '알 수 없음';
+                $representativeName = $tenant?->representative_name ?? $prospect?->ceo_name ?? '-';
+                $businessNumber = $tenant?->business_number ?? $prospect?->business_number ?? '-';
             @endphp
             <div class="p-4 hover:bg-emerald-50 transition" id="completed-row-{{ $item->id }}">
                 <div class="flex justify-between items-start mb-2">
                     <div>
                         <div class="font-medium text-gray-900 text-sm">{{ $companyName }}</div>
                         <div class="text-xs text-gray-500">
-                            {{ $tenant?->representative_name ?? '-' }} | {{ $tenant?->business_number ?? '-' }}
+                            {{ $representativeName }} | {{ $businessNumber }}
                         </div>
                     </div>
                 </div>
diff --git a/resources/views/sales/development/partials/detail-modal.blade.php b/resources/views/sales/development/partials/detail-modal.blade.php
index f9c438e7..921ccea1 100644
--- a/resources/views/sales/development/partials/detail-modal.blade.php
+++ b/resources/views/sales/development/partials/detail-modal.blade.php
@@ -1,7 +1,15 @@
 {{-- 상세 정보 모달 --}}
 @php
     $tenant = $management->tenant;
-    $companyName = $tenant?->company_name ?? '알 수 없음';
+    $prospect = $management->tenantProspect;
+
+    // 테넌트 또는 가망고객에서 정보 가져오기
+    $companyName = $tenant?->company_name ?? $prospect?->company_name ?? '알 수 없음';
+    $businessNumber = $tenant?->business_number ?? $prospect?->business_number ?? '-';
+    $representativeName = $tenant?->representative_name ?? $prospect?->ceo_name ?? '-';
+    $phone = $tenant?->phone ?? $prospect?->contact_phone ?? '-';
+    $address = $tenant?->address ?? $prospect?->address ?? '-';
+
     $currentHqStep = $hqStatusOrder[$management->hq_status ?? 'pending'] ?? 0;
 @endphp
 
@@ -10,7 +18,7 @@
     <div class="flex justify-between items-start mb-6">
         <div>
             <h3 class="text-xl font-bold text-gray-900">{{ $companyName }}</h3>
-            <p class="text-sm text-gray-500 mt-1">{{ $tenant?->business_number ?? '-' }}</p>
+            <p class="text-sm text-gray-500 mt-1">{{ $businessNumber }}</p>
         </div>
         <button type="button" onclick="closeDetailModal()"
                 class="text-gray-400 hover:text-gray-600 transition">
@@ -85,30 +93,30 @@ class="text-gray-400 hover:text-gray-600 transition">
         </div>
     </div>
 
-    {{-- 테넌트 정보 --}}
+    {{-- 고객 정보 --}}
     <div class="mb-6">
         <h4 class="text-sm font-semibold text-gray-700 mb-3">고객 정보</h4>
         <div class="bg-gray-50 rounded-lg p-4">
             <dl class="grid grid-cols-2 gap-3 text-sm">
                 <div>
                     <dt class="text-gray-500">업체명</dt>
-                    <dd class="font-medium text-gray-900">{{ $tenant?->company_name ?? '-' }}</dd>
+                    <dd class="font-medium text-gray-900">{{ $companyName }}</dd>
                 </div>
                 <div>
                     <dt class="text-gray-500">사업자번호</dt>
-                    <dd class="font-medium text-gray-900">{{ $tenant?->business_number ?? '-' }}</dd>
+                    <dd class="font-medium text-gray-900">{{ $businessNumber }}</dd>
                 </div>
                 <div>
                     <dt class="text-gray-500">대표자</dt>
-                    <dd class="font-medium text-gray-900">{{ $tenant?->representative_name ?? '-' }}</dd>
+                    <dd class="font-medium text-gray-900">{{ $representativeName }}</dd>
                 </div>
                 <div>
                     <dt class="text-gray-500">연락처</dt>
-                    <dd class="font-medium text-gray-900">{{ $tenant?->phone ?? '-' }}</dd>
+                    <dd class="font-medium text-gray-900">{{ $phone }}</dd>
                 </div>
                 <div class="col-span-2">
                     <dt class="text-gray-500">주소</dt>
-                    <dd class="font-medium text-gray-900">{{ $tenant?->address ?? '-' }}</dd>
+                    <dd class="font-medium text-gray-900">{{ $address }}</dd>
                 </div>
             </dl>
         </div>
diff --git a/resources/views/sales/development/partials/pending-list.blade.php b/resources/views/sales/development/partials/pending-list.blade.php
index fc364862..df9785b8 100644
--- a/resources/views/sales/development/partials/pending-list.blade.php
+++ b/resources/views/sales/development/partials/pending-list.blade.php
@@ -12,14 +12,17 @@
             @forelse($pendingItems as $item)
             @php
                 $tenant = $item->tenant;
-                $companyName = $tenant?->company_name ?? '알 수 없음';
+                $prospect = $item->tenantProspect;
+                $companyName = $tenant?->company_name ?? $prospect?->company_name ?? '알 수 없음';
+                $representativeName = $tenant?->representative_name ?? $prospect?->ceo_name ?? '-';
+                $businessNumber = $tenant?->business_number ?? $prospect?->business_number ?? '-';
             @endphp
             <div class="p-4 hover:bg-yellow-50 transition" id="pending-row-{{ $item->id }}">
                 <div class="flex justify-between items-start mb-2">
                     <div>
                         <div class="font-medium text-gray-900 text-sm">{{ $companyName }}</div>
                         <div class="text-xs text-gray-500">
-                            {{ $tenant?->representative_name ?? '-' }} | {{ $tenant?->business_number ?? '-' }}
+                            {{ $representativeName }} | {{ $businessNumber }}
                         </div>
                     </div>
                     <div class="text-xs text-gray-400">{{ $item->updated_at->format('m/d') }}</div>
diff --git a/resources/views/sales/development/partials/progress-list.blade.php b/resources/views/sales/development/partials/progress-list.blade.php
index a0595cd9..445c5018 100644
--- a/resources/views/sales/development/partials/progress-list.blade.php
+++ b/resources/views/sales/development/partials/progress-list.blade.php
@@ -12,7 +12,10 @@
             @forelse($progressItems as $item)
             @php
                 $tenant = $item->tenant;
-                $companyName = $tenant?->company_name ?? '알 수 없음';
+                $prospect = $item->tenantProspect;
+                $companyName = $tenant?->company_name ?? $prospect?->company_name ?? '알 수 없음';
+                $representativeName = $tenant?->representative_name ?? $prospect?->ceo_name ?? '-';
+                $businessNumber = $tenant?->business_number ?? $prospect?->business_number ?? '-';
                 $currentHqStep = $hqStatusOrder[$item->hq_status ?? 'pending'] ?? 0;
             @endphp
             <div class="p-4 hover:bg-purple-50 transition" id="progress-row-{{ $item->id }}">
@@ -20,7 +23,7 @@
                     <div>
                         <div class="font-medium text-gray-900 text-sm">{{ $companyName }}</div>
                         <div class="text-xs text-gray-500">
-                            {{ $tenant?->representative_name ?? '-' }} | {{ $tenant?->business_number ?? '-' }}
+                            {{ $representativeName }} | {{ $businessNumber }}
                         </div>
                     </div>
                     <div class="text-xs text-gray-400">{{ $item->updated_at->format('m/d') }}</div>