diff --git a/app/Http/Controllers/Admin/CompanyController.php b/app/Http/Controllers/Admin/CompanyController.php
index 72aff74..6836bd6 100644
--- a/app/Http/Controllers/Admin/CompanyController.php
+++ b/app/Http/Controllers/Admin/CompanyController.php
@@ -9,6 +9,7 @@ use App\Models\AppointmentType;
 use App\Models\Book;
 use App\Models\Calendar;
 use App\Models\Company;
+use App\Models\Course;
 use App\Models\CourseContentEvaluationAsk;
 use App\Models\CourseContentEvaluationForm;
 use App\Models\CourseSign;
@@ -283,8 +284,14 @@ class CompanyController extends BaseController
         $start_date = $start_year ? $start_year . '-01-01' : date('Y-01-01');
         $end_date = $end_year ? $end_year . '-12-31' : date('Y-m-d');
         if ($start_date && $end_date) {
-            // 累计被投企业数（从起始日期到结束日期）
-            $investedCompanies = Company::yhInvestedTotal($end_date, true);
+            // 累计被投企业数（与 CourseSign::yhInvestedTotal / courses-home 口径一致：getStudentList 学员 + 被投企业）
+            $course_ids = null;
+            if (!empty($all['course_type_id'])) {
+                $tid = is_array($all['course_type_id']) ? $all['course_type_id'] : explode(',', (string) $all['course_type_id']);
+                $tid = array_filter(array_map('trim', $tid));
+                $course_ids = $tid ? Course::whereIn('type', $tid)->pluck('id')->toArray() : null;
+            }
+            $investedCompanies = CourseSign::yhInvestedTotal(CourseType::START_DATE, $end_date, $course_ids, true);
             if ($investedCompanies) {
                 $investedCompaniesCollection = collect($investedCompanies);
                 $statistics['course_signs_invested'] = $investedCompaniesCollection->count();
diff --git a/app/Models/Company.php b/app/Models/Company.php
index 745e3fc..8f2d463 100644
--- a/app/Models/Company.php
+++ b/app/Models/Company.php
@@ -73,53 +73,6 @@ class Company extends SoftDeletesModel
         }
     }
 
-    /**
-     * 累计被投企业统计
-     * @param string|null $start_date 开始日期
-     * @param string|null $end_date 结束日期
-     * @param array|null $course_ids 课程ID（仅在自定义时间时生效）
-     * @param bool $retList 是否返回列表
-     */
-    public static function yhInvestedTotal($end_date = null, $retList = false)
-    {
-        // 获取这些学员所在的被投企业
-        $companies = Company::approvedStudents()->where('is_yh_invested', 1)->get();
-        // 自定义时间：需要按被投时间筛选
-        // 筛选出被投时间在范围内的企业
-        $filteredCompanies = [];
-        foreach ($companies as $company) {
-            $projectUsers = $company->project_users ?? [];
-            $hasValidInvestDate = false;
-            $allInvestDatesNull = true;
-
-            foreach ($projectUsers as $item) {
-                $investDate = $item['investDate'] ?? null;
-                // 检查是否有有效的被投时间
-                if ($investDate) {
-                    $allInvestDatesNull = false;
-                    // 检查被投时间是否在范围内
-                    if ($investDate <= $end_date) {
-                        $hasValidInvestDate = true;
-                        break; // 只要有一条满足就加入
-                    }
-                }
-            }
-
-            // 如果有有效的被投时间在范围内，或者所有被投时间都是null，则加入结果
-            if ($hasValidInvestDate || $allInvestDatesNull) {
-                $filteredCompanies[] = $company;
-            }
-        }
-        $companies = collect($filteredCompanies);
-
-        // 返回结果
-        if ($retList) {
-            return $companies->values();
-        } else {
-            return $companies->count();
-        }
-    }
-
     /**
      * 今年被投企业统计（统计或列表）- 按年份范围统计
      * @param string|null $start_date 开始日期
diff --git a/app/Models/CourseSign.php b/app/Models/CourseSign.php
index f4014d8..36d0a88 100755
--- a/app/Models/CourseSign.php
+++ b/app/Models/CourseSign.php
@@ -181,7 +181,7 @@ class CourseSign extends SoftDeletesModel
      */
     public static function yhInvestedTotal($start_date = null, $end_date = null, $course_ids = null, $retList = false)
     {
-        // 默认时间：获取所有学员，不限制课程
+        // 默认时间：获取所有学员
         $userIds = self::getStudentList($start_date, $end_date, 1, $course_ids)->get()->pluck('user_id');
 
         // 获取这些学员所在的被投企业