diff --git a/vendor/magento/module-company-graph-ql/Model/Resolver/Customer/CustomerId.php b/vendor/magento/module-company-graph-ql/Model/Resolver/Customer/CustomerId.php
new file mode 100644
index 00000000000..b6ee17bf2e4
--- /dev/null
+++ b/vendor/magento/module-company-graph-ql/Model/Resolver/Customer/CustomerId.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * ADOBE CONFIDENTIAL
+ *
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ *
+ * NOTICE: All information contained herein is, and remains
+ * the property of Adobe and its suppliers, if any. The intellectual
+ * and technical concepts contained herein are proprietary to Adobe
+ * and its suppliers and are protected by all applicable intellectual
+ * property laws, including trade secret and copyright laws.
+ * Dissemination of this information or reproduction of this material
+ * is strictly forbidden unless prior written permission is obtained
+ * from Adobe.
+ */
+declare(strict_types=1);
+
+namespace Magento\CompanyGraphQl\Model\Resolver\Customer;
+
+use Magento\CompanyGraphQl\Model\Company\ResolverAccess;
+use Magento\Customer\Api\Data\CustomerInterface;
+use Magento\Framework\GraphQl\Config\Element\Field;
+use Magento\Framework\GraphQl\Query\ResolverInterface;
+use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
+use Magento\Framework\GraphQl\Query\Uid;
+
+/**
+ * Customer id data resolver, used for GraphQL request processing.
+ */
+class CustomerId implements ResolverInterface
+{
+    /**
+     * @param ResolverAccess $resolverAccess
+     * @param Uid            $uidEncoder
+     * @param array          $allowedResources
+     */
+    public function __construct(
+        private readonly ResolverAccess $resolverAccess,
+        private readonly Uid $uidEncoder,
+        private readonly array $allowedResources = []
+    ) {
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function resolve(
+        Field $field,
+              $context,
+        ResolveInfo $info,
+        ?array $value = null,
+        ?array $args = null
+    ) {
+        if (!isset($value['model']) || !$value['model'] instanceof CustomerInterface) {
+            return null;
+        }
+
+        try {
+            $this->resolverAccess->isAllowed($this->allowedResources);
+        } catch (\Exception $e) {
+            // If user is not company user, then return null
+            return null;
+        }
+
+        if ($field->getName() === 'id') {
+            $customerId = $value['model']->getId();
+            return $customerId ? $this->uidEncoder->encode((string)$customerId) : null;
+        }
+        return null;
+    }
+}
diff --git a/vendor/magento/module-company-graph-ql/etc/graphql/di.xml b/vendor/magento/module-company-graph-ql/etc/graphql/di.xml
index 89a4774ea70..9fd47ca9853 100644
--- a/vendor/magento/module-company-graph-ql/etc/graphql/di.xml
+++ b/vendor/magento/module-company-graph-ql/etc/graphql/di.xml
@@ -170,6 +170,13 @@
             <argument name="companiesSort" xsi:type="object">CompaniesSorting</argument>
         </arguments>
     </type>
+    <type name="Magento\CompanyGraphQl\Model\Resolver\Customer\CustomerId">
+        <arguments>
+            <argument name="allowedResources" xsi:type="array">
+                <item name="company_users_view" xsi:type="string">Magento_Company::users_view</item>
+            </argument>
+        </arguments>
+    </type>
     <type name="Magento\Framework\GraphQl\Schema\Type\Enum\DefaultDataMapper">
         <arguments>
             <argument name="map" xsi:type="array">
diff --git a/vendor/magento/module-company-graph-ql/etc/schema.graphqls b/vendor/magento/module-company-graph-ql/etc/schema.graphqls
index 07365409ca8..2d1318b79c1 100644
--- a/vendor/magento/module-company-graph-ql/etc/schema.graphqls
+++ b/vendor/magento/module-company-graph-ql/etc/schema.graphqls
@@ -325,6 +325,7 @@ type Customer {
     status: CompanyUserStatusEnum @resolver(class: "Magento\\CompanyGraphQl\\Model\\Resolver\\Company\\Customer\\Customer") @doc(description: "Indicates whether the company user is ACTIVE or INACTIVE.")
     structure_id: ID! @resolver(class: "Magento\\CompanyGraphQl\\Model\\Resolver\\Company\\Customer\\StructureId") @doc(description: "ID of the company structure")
     companies(input: UserCompaniesInput): UserCompaniesOutput! @doc(description: "An object that contains a list of companies user is assigned to.") @resolver(class:"Magento\\CompanyGraphQl\\Model\\Resolver\\Customer\\Companies")
+    id: ID @resolver(class: "Magento\\CompanyGraphQl\\Model\\Resolver\\Customer\\CustomerId") @doc(description: "The ID assigned to the customer.")
 }
 
 input UserCompaniesInput @doc(description: "Defines the input for returning matching companies the customer is assigned to.") {