diff --git a/app/controllers/api/v1/accounts/contacts_controller.rb b/app/controllers/api/v1/accounts/contacts_controller.rb
index eafda0fe2..bc1082583 100644
--- a/app/controllers/api/v1/accounts/contacts_controller.rb
+++ b/app/controllers/api/v1/accounts/contacts_controller.rb
@@ -214,3 +214,5 @@ class Api::V1::Accounts::ContactsController < Api::V1::Accounts::BaseController
     render json: error, status: error_status
   end
 end
+
+Api::V1::Accounts::ContactsController.prepend_mod_with('Api::V1::Accounts::ContactsController')
diff --git a/app/javascript/dashboard/components-next/Companies/CompanyCreateDialog.vue b/app/javascript/dashboard/components-next/Companies/CompanyCreateDialog.vue
index b3847030b..4b9d0b466 100644
--- a/app/javascript/dashboard/components-next/Companies/CompanyCreateDialog.vue
+++ b/app/javascript/dashboard/components-next/Companies/CompanyCreateDialog.vue
@@ -26,6 +26,13 @@ const resetForm = () => {
   form.description = '';
 };
 
+const open = (company = {}) => {
+  form.name = company.name || '';
+  form.domain = company.domain || '';
+  form.description = company.description || '';
+  dialogRef.value?.open();
+};
+
 const handleConfirm = () => {
   if (isFormInvalid.value) return;
 
@@ -45,7 +52,7 @@ const onSuccess = () => {
   closeDialog();
 };
 
-defineExpose({ dialogRef, onSuccess });
+defineExpose({ dialogRef, onSuccess, open });
 </script>
 
 <template>
diff --git a/app/javascript/dashboard/components-next/Companies/CompanySelector.vue b/app/javascript/dashboard/components-next/Companies/CompanySelector.vue
new file mode 100644
index 000000000..f8cfc8058
--- /dev/null
+++ b/app/javascript/dashboard/components-next/Companies/CompanySelector.vue
@@ -0,0 +1,153 @@
+<script setup>
+import { computed, ref } from 'vue';
+import { useI18n } from 'vue-i18n';
+import { useDebounceFn } from '@vueuse/core';
+import CompanyAPI from 'dashboard/api/companies';
+import { useAlert } from 'dashboard/composables';
+import ComboBox from 'dashboard/components-next/combobox/ComboBox.vue';
+import CompanyCreateDialog from 'dashboard/components-next/Companies/CompanyCreateDialog.vue';
+
+const props = defineProps({
+  modelValue: {
+    type: [String, Number],
+    default: '',
+  },
+  // Name of the linked company, so the label shows before the list is loaded.
+  selectedName: {
+    type: String,
+    default: '',
+  },
+  isDetailsView: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['select']);
+
+const { t } = useI18n();
+
+const CREATE_PREFIX = 'create:';
+
+const options = ref([]);
+const searchQuery = ref('');
+const createDialogRef = ref(null);
+const isCreatingCompany = ref(false);
+
+const toOption = company => ({ label: company.name, value: company.id });
+
+const createOption = computed(() => {
+  const name = searchQuery.value.trim();
+  if (!name) return null;
+
+  const exists = options.value.some(
+    option => option.label.toLowerCase() === name.toLowerCase()
+  );
+  if (exists) return null;
+
+  return {
+    label: t('COMPANIES.SELECTOR.CREATE_OPTION', { name }),
+    value: `${CREATE_PREFIX}${name}`,
+  };
+});
+
+const comboboxOptions = computed(() => {
+  const list = [...options.value];
+
+  // Keep the linked company visible even when it is not in the loaded results.
+  if (
+    props.modelValue &&
+    props.selectedName &&
+    !list.some(option => option.value === Number(props.modelValue))
+  ) {
+    list.unshift({
+      label: props.selectedName,
+      value: Number(props.modelValue),
+    });
+  }
+
+  if (createOption.value) list.push(createOption.value);
+  return list;
+});
+
+const fetchCompanies = async query => {
+  try {
+    const {
+      data: { payload },
+    } = query
+      ? await CompanyAPI.search(query)
+      : await CompanyAPI.get({ page: 1 });
+    options.value = (payload || []).map(toOption);
+  } catch {
+    options.value = [];
+  }
+};
+
+// Fetch lazily, only when the dropdown opens, instead of on mount.
+const handleOpen = () => {
+  searchQuery.value = '';
+  fetchCompanies('');
+};
+
+const handleSearch = useDebounceFn(query => {
+  searchQuery.value = query?.trim() || '';
+  fetchCompanies(searchQuery.value);
+}, 300);
+
+// Open the create dialog (prefilled with the typed name) so the user can add
+// domain/description before saving, instead of creating with just a name.
+const createCompany = async company => {
+  isCreatingCompany.value = true;
+  try {
+    const {
+      data: { payload },
+    } = await CompanyAPI.create({ company });
+    createDialogRef.value?.onSuccess();
+    emit('select', { id: payload.id, name: payload.name });
+    useAlert(t('COMPANIES.CREATE.MESSAGES.SUCCESS'));
+  } catch {
+    useAlert(t('COMPANIES.CREATE.MESSAGES.ERROR'));
+  } finally {
+    isCreatingCompany.value = false;
+  }
+};
+
+const handleSelect = value => {
+  if (typeof value === 'string' && value.startsWith(CREATE_PREFIX)) {
+    createDialogRef.value?.open({ name: value.slice(CREATE_PREFIX.length) });
+    // Drop the transient "Add …" option so the button label doesn't stick to
+    // it if the dialog is dismissed without creating.
+    searchQuery.value = '';
+    return;
+  }
+
+  const id = value ? Number(value) : '';
+  const selected = comboboxOptions.value.find(option => option.value === id);
+  emit('select', { id, name: selected?.label || '' });
+};
+</script>
+
+<template>
+  <ComboBox
+    :model-value="modelValue"
+    :options="comboboxOptions"
+    :display-label="selectedName"
+    :placeholder="t('COMPANIES.SELECTOR.PLACEHOLDER')"
+    :search-placeholder="t('COMPANIES.SEARCH_PLACEHOLDER')"
+    use-api-results
+    class="[&>div>button]:h-8 [&>div>div_ul]:max-h-56"
+    :class="{
+      '[&>div>button]:bg-n-alpha-black2 [&>div>button:not(.focused)]:!outline-transparent':
+        !isDetailsView,
+      '[&>div>button]:!bg-n-alpha-black2': isDetailsView,
+    }"
+    @open="handleOpen"
+    @search="handleSearch"
+    @update:model-value="handleSelect"
+  />
+  <CompanyCreateDialog
+    ref="createDialogRef"
+    :is-loading="isCreatingCompany"
+    @create="createCompany"
+  />
+</template>
diff --git a/app/javascript/dashboard/components-next/Contacts/ContactsCard/ContactsCard.vue b/app/javascript/dashboard/components-next/Contacts/ContactsCard/ContactsCard.vue
index 50af6f0c0..8dd9d63e2 100644
--- a/app/javascript/dashboard/components-next/Contacts/ContactsCard/ContactsCard.vue
+++ b/app/javascript/dashboard/components-next/Contacts/ContactsCard/ContactsCard.vue
@@ -15,6 +15,7 @@ const props = defineProps({
   id: { type: Number, required: true },
   name: { type: String, default: '' },
   email: { type: String, default: '' },
+  companyId: { type: [Number, String], default: '' },
   additionalAttributes: { type: Object, default: () => ({}) },
   phoneNumber: { type: String, default: '' },
   thumbnail: { type: String, default: '' },
@@ -41,6 +42,7 @@ const getInitialContactData = () => ({
   id: props.id,
   name: props.name,
   email: props.email,
+  companyId: props.companyId,
   phoneNumber: props.phoneNumber,
   additionalAttributes: props.additionalAttributes,
 });
diff --git a/app/javascript/dashboard/components-next/Contacts/ContactsForm/ContactsForm.vue b/app/javascript/dashboard/components-next/Contacts/ContactsForm/ContactsForm.vue
index 66296257f..62978875e 100644
--- a/app/javascript/dashboard/components-next/Contacts/ContactsForm/ContactsForm.vue
+++ b/app/javascript/dashboard/components-next/Contacts/ContactsForm/ContactsForm.vue
@@ -5,8 +5,11 @@ import { required, email } from '@vuelidate/validators';
 import { useVuelidate } from '@vuelidate/core';
 import { splitName } from '@chatwoot/utils';
 import countries from 'shared/constants/countries.js';
+import { FEATURE_FLAGS } from 'dashboard/featureFlags';
+import { useAccount } from 'dashboard/composables/useAccount';
 import Input from 'dashboard/components-next/input/Input.vue';
 import ComboBox from 'dashboard/components-next/combobox/ComboBox.vue';
+import CompanySelector from 'dashboard/components-next/Companies/CompanySelector.vue';
 import Icon from 'dashboard/components-next/icon/Icon.vue';
 import PhoneNumberInput from 'dashboard/components-next/phonenumberinput/PhoneNumberInput.vue';
 
@@ -28,6 +31,7 @@ const props = defineProps({
 const emit = defineEmits(['update']);
 
 const { t } = useI18n();
+const { currentAccount, isCloudFeatureEnabled } = useAccount();
 
 const FORM_CONFIG = {
   FIRST_NAME: { field: 'firstName' },
@@ -54,6 +58,7 @@ const defaultState = {
   id: 0,
   name: '',
   email: '',
+  companyId: '',
   firstName: '',
   lastName: '',
   phoneNumber: '',
@@ -85,6 +90,23 @@ const validationRules = {
 const v$ = useVuelidate(validationRules, state);
 
 const isFormInvalid = computed(() => v$.value.$invalid);
+const hasCompaniesFeature = computed(
+  () =>
+    currentAccount.value?.id && isCloudFeatureEnabled(FEATURE_FLAGS.COMPANIES)
+);
+const showCompanySelector = computed(
+  () =>
+    hasCompaniesFeature.value &&
+    (Boolean(state.companyId) || !state.additionalAttributes.companyName)
+);
+
+const emitContactUpdate = async () => {
+  const isFormValid = await v$.value.$validate();
+  if (!isFormValid) return;
+
+  const { firstName, lastName, ...stateWithoutNames } = state;
+  emit('update', stateWithoutNames);
+};
 
 const prepareStateBasedOnProps = () => {
   if (props.isNewContact) {
@@ -96,6 +118,7 @@ const prepareStateBasedOnProps = () => {
     name = '',
     email: emailAddress,
     phoneNumber,
+    companyId = '',
     additionalAttributes = {},
   } = props.contactData || {};
   const { firstName, lastName } = splitName(name || '');
@@ -115,6 +138,7 @@ const prepareStateBasedOnProps = () => {
   Object.assign(state, {
     id,
     name,
+    companyId: companyId || '',
     firstName,
     lastName,
     email: emailAddress,
@@ -200,11 +224,7 @@ const getFormBinding = key => {
         }
       }
 
-      const isFormValid = await v$.value.$validate();
-      if (isFormValid) {
-        const { firstName, lastName, ...stateWithoutNames } = state;
-        emit('update', stateWithoutNames);
-      }
+      await emitContactUpdate();
     },
   });
 };
@@ -221,6 +241,12 @@ const handleCountrySelection = value => {
   emit('update', state);
 };
 
+const handleCompanySelection = async ({ id, name }) => {
+  state.companyId = id || '';
+  state.additionalAttributes.companyName = name || '';
+  await emitContactUpdate();
+};
+
 const resetValidation = () => {
   v$.value.$reset();
 };
@@ -273,6 +299,13 @@ defineExpose({
             :placeholder="item.placeholder"
             :show-border="isDetailsView"
           />
+          <CompanySelector
+            v-else-if="item.key === 'COMPANY_NAME' && showCompanySelector"
+            :model-value="state.companyId"
+            :selected-name="state.additionalAttributes.companyName"
+            :is-details-view="isDetailsView"
+            @select="handleCompanySelection"
+          />
           <Input
             v-else
             v-model="getFormBinding(item.key).value"
diff --git a/app/javascript/dashboard/components-next/Contacts/Pages/ContactsList.vue b/app/javascript/dashboard/components-next/Contacts/Pages/ContactsList.vue
index 72bc2c7dd..87fe1d214 100644
--- a/app/javascript/dashboard/components-next/Contacts/Pages/ContactsList.vue
+++ b/app/javascript/dashboard/components-next/Contacts/Pages/ContactsList.vue
@@ -92,6 +92,7 @@ const handleAvatarHover = (id, isHovered) => {
         :id="contact.id"
         :name="contact.name"
         :email="contact.email"
+        :company-id="contact.companyId"
         :thumbnail="contact.thumbnail"
         :phone-number="contact.phoneNumber"
         :additional-attributes="contact.additionalAttributes"
diff --git a/app/javascript/dashboard/components-next/combobox/ComboBox.vue b/app/javascript/dashboard/components-next/combobox/ComboBox.vue
index 58d9e634d..a39a6f6a1 100644
--- a/app/javascript/dashboard/components-next/combobox/ComboBox.vue
+++ b/app/javascript/dashboard/components-next/combobox/ComboBox.vue
@@ -14,6 +14,9 @@ const props = defineProps({
       value.every(option => 'value' in option && 'label' in option),
   },
   placeholder: { type: String, default: '' },
+  // Fallback label shown when the selected value is not in `options` yet
+  // (e.g. API-backed lists that load lazily on open).
+  displayLabel: { type: String, default: '' },
   modelValue: { type: [String, Number], default: '' },
   disabled: { type: Boolean, default: false },
   searchPlaceholder: { type: String, default: '' },
@@ -23,7 +26,7 @@ const props = defineProps({
   useApiResults: { type: Boolean, default: false }, // useApiResults prop to determine if search is handled by API
 });
 
-const emit = defineEmits(['update:modelValue', 'search']);
+const emit = defineEmits(['update:modelValue', 'search', 'open']);
 
 const { t } = useI18n();
 
@@ -52,7 +55,7 @@ const selectedLabel = computed(() => {
   const selected = props.options.find(
     option => option.value === selectedValue.value
   );
-  return selected?.label ?? selectPlaceholder.value;
+  return selected?.label ?? (props.displayLabel || selectPlaceholder.value);
 });
 
 const selectOption = option => {
@@ -72,6 +75,7 @@ const toggleDropdown = () => {
   open.value = !open.value;
   if (open.value) {
     search.value = '';
+    emit('open');
     nextTick(() => dropdownRef.value?.focus());
   }
 };
diff --git a/app/javascript/dashboard/components-next/combobox/ComboBoxDropdown.vue b/app/javascript/dashboard/components-next/combobox/ComboBoxDropdown.vue
index 46826a6cd..1ab9e9503 100644
--- a/app/javascript/dashboard/components-next/combobox/ComboBoxDropdown.vue
+++ b/app/javascript/dashboard/components-next/combobox/ComboBoxDropdown.vue
@@ -87,7 +87,7 @@ defineExpose({
         }"
         role="option"
         :aria-selected="isSelected(option)"
-        @click="emit('select', option)"
+        @click.stop="emit('select', option)"
       >
         <span
           :class="{
diff --git a/app/javascript/dashboard/i18n/locale/en/companies.json b/app/javascript/dashboard/i18n/locale/en/companies.json
index 534205038..d4cd0b72f 100644
--- a/app/javascript/dashboard/i18n/locale/en/companies.json
+++ b/app/javascript/dashboard/i18n/locale/en/companies.json
@@ -25,6 +25,10 @@
     "ACTIONS": {
       "CREATE": "Add company"
     },
+    "SELECTOR": {
+      "PLACEHOLDER": "Select company",
+      "CREATE_OPTION": "Add \"{name}\""
+    },
     "CREATE": {
       "TITLE": "Add company details",
       "ACTIONS": {
diff --git a/app/javascript/dashboard/routes/dashboard/companies/pages/CompaniesIndex.vue b/app/javascript/dashboard/routes/dashboard/companies/pages/CompaniesIndex.vue
index 8ec401376..24872ef95 100644
--- a/app/javascript/dashboard/routes/dashboard/companies/pages/CompaniesIndex.vue
+++ b/app/javascript/dashboard/routes/dashboard/companies/pages/CompaniesIndex.vue
@@ -126,7 +126,7 @@ const showCompany = companyId => {
 };
 
 const openCreateCompanyDialog = () => {
-  createCompanyDialogRef.value?.dialogRef.open();
+  createCompanyDialogRef.value?.open();
 };
 
 const createCompany = async company => {
diff --git a/app/javascript/dashboard/store/modules/contacts/actions.js b/app/javascript/dashboard/store/modules/contacts/actions.js
index 76bbf1f26..48596c0be 100644
--- a/app/javascript/dashboard/store/modules/contacts/actions.js
+++ b/app/javascript/dashboard/store/modules/contacts/actions.js
@@ -13,8 +13,12 @@ const buildContactFormData = contactParams => {
   const formData = new FormData();
   const { additional_attributes = {}, ...contactProperties } = contactParams;
   Object.keys(contactProperties).forEach(key => {
-    if (contactProperties[key]) {
-      formData.append(key, contactProperties[key]);
+    const value = contactProperties[key];
+    const shouldAppendBlankCompanyId =
+      key === 'company_id' && value !== undefined;
+
+    if (value || shouldAppendBlankCompanyId) {
+      formData.append(key, value ?? '');
     }
   });
   const { social_profiles, ...additionalAttributesProperties } =
diff --git a/app/javascript/dashboard/store/modules/specs/contacts/actions.spec.js b/app/javascript/dashboard/store/modules/specs/contacts/actions.spec.js
index bb2f0393b..9d9a6780b 100644
--- a/app/javascript/dashboard/store/modules/specs/contacts/actions.spec.js
+++ b/app/javascript/dashboard/store/modules/specs/contacts/actions.spec.js
@@ -145,6 +145,33 @@ describe('#actions', () => {
         [types.SET_CONTACT_UI_FLAG, { isUpdating: false }],
       ]);
     });
+
+    it('preserves blank company_id when updating with form data', async () => {
+      axios.patch.mockResolvedValue({ data: { payload: contactList[0] } });
+
+      await actions.update(
+        { commit },
+        {
+          id: contactList[0].id,
+          isFormData: true,
+          name: contactList[0].name,
+          companyId: '',
+          avatar: 'avatar-file',
+          additionalAttributes: {
+            companyName: '',
+            socialProfiles: {},
+          },
+        }
+      );
+
+      const lastPatchCall =
+        axios.patch.mock.calls[axios.patch.mock.calls.length - 1];
+      const formData = lastPatchCall[1];
+
+      expect(formData).toBeInstanceOf(FormData);
+      expect(formData.has('company_id')).toBe(true);
+      expect(formData.get('company_id')).toBe('');
+    });
   });
 
   describe('#create', () => {
diff --git a/app/models/contact.rb b/app/models/contact.rb
index 3badf478d..3b04e6bc1 100644
--- a/app/models/contact.rb
+++ b/app/models/contact.rb
@@ -148,7 +148,7 @@ class Contact < ApplicationRecord
   end
 
   def push_event_data
-    {
+    data = {
       additional_attributes: additional_attributes,
       custom_attributes: custom_attributes,
       email: email,
@@ -160,6 +160,8 @@ class Contact < ApplicationRecord
       blocked: blocked,
       type: 'contact'
     }
+    data[:company_id] = company_id if account.feature_enabled?('companies')
+    data
   end
 
   def webhook_data
diff --git a/app/views/api/v1/models/_contact.json.jbuilder b/app/views/api/v1/models/_contact.json.jbuilder
index 4e998ddf1..a76166a57 100644
--- a/app/views/api/v1/models/_contact.json.jbuilder
+++ b/app/views/api/v1/models/_contact.json.jbuilder
@@ -6,6 +6,7 @@ json.name resource.name
 json.phone_number resource.phone_number
 json.blocked resource.blocked
 json.identifier resource.identifier
+json.company_id resource.company_id if Current.account&.feature_enabled?('companies')
 json.thumbnail resource.avatar_url
 json.custom_attributes resource.custom_attributes
 json.last_activity_at resource.last_activity_at.to_i if resource[:last_activity_at].present?
diff --git a/enterprise/app/controllers/enterprise/api/v1/accounts/contacts_controller.rb b/enterprise/app/controllers/enterprise/api/v1/accounts/contacts_controller.rb
new file mode 100644
index 000000000..42ddbf6a2
--- /dev/null
+++ b/enterprise/app/controllers/enterprise/api/v1/accounts/contacts_controller.rb
@@ -0,0 +1,17 @@
+module Enterprise::Api::V1::Accounts::ContactsController
+  private
+
+  def permitted_params
+    params_with_company_id = super
+    return params_with_company_id unless Current.account.feature_enabled?('companies')
+    return params_with_company_id unless params.key?(:company_id)
+
+    params_with_company_id.merge(company_id: permitted_company_id)
+  end
+
+  def permitted_company_id
+    return nil if params[:company_id].blank?
+
+    Current.account.companies.find(params[:company_id]).id
+  end
+end
diff --git a/enterprise/app/models/enterprise/concerns/contact.rb b/enterprise/app/models/enterprise/concerns/contact.rb
index 84661c991..4362a915d 100644
--- a/enterprise/app/models/enterprise/concerns/contact.rb
+++ b/enterprise/app/models/enterprise/concerns/contact.rb
@@ -6,6 +6,7 @@ module Enterprise::Concerns::Contact
     after_commit :associate_company_from_email,
                  on: [:create, :update],
                  if: :should_associate_company?
+    before_save :sync_company_name_from_company, if: :will_save_change_to_company_id?
     after_update_commit :record_company_activity, if: :saved_change_to_last_activity_at?
   end
 
@@ -33,4 +34,14 @@ module Enterprise::Concerns::Contact
   def record_company_activity
     company&.record_activity_at!(last_activity_at) if last_activity_at.present?
   end
+
+  def sync_company_name_from_company
+    self.additional_attributes ||= {}
+
+    if company_id.present?
+      additional_attributes['company_name'] = company&.name
+    else
+      additional_attributes.delete('company_name')
+    end
+  end
 end
diff --git a/enterprise/app/services/contacts/company_association_service.rb b/enterprise/app/services/contacts/company_association_service.rb
index 9039e2a31..20c5ec4e4 100644
--- a/enterprise/app/services/contacts/company_association_service.rb
+++ b/enterprise/app/services/contacts/company_association_service.rb
@@ -6,7 +6,7 @@ class Contacts::CompanyAssociationService
     if company
       # rubocop:disable Rails/SkipsModelValidations
       # Using update_column and increment_counter to avoid triggering callbacks while maintaining counter cache
-      contact.update_column(:company_id, company.id)
+      contact.update_columns(company_id: company.id, additional_attributes: contact_attributes_with_company_name(contact, company))
       Company.increment_counter(:contacts_count, company.id)
       # rubocop:enable Rails/SkipsModelValidations
       company.record_activity_at!(contact.last_activity_at) if contact.last_activity_at.present?
@@ -45,4 +45,8 @@ class Contacts::CompanyAssociationService
   def derive_company_name(contact, domain)
     contact.additional_attributes&.dig('company_name') || domain.split('.').first.tr('-_', ' ').titleize
   end
+
+  def contact_attributes_with_company_name(contact, company)
+    (contact.additional_attributes || {}).merge('company_name' => company.name)
+  end
 end
diff --git a/spec/controllers/api/v1/accounts/contacts_controller_spec.rb b/spec/controllers/api/v1/accounts/contacts_controller_spec.rb
index 2255a1215..9468b273c 100644
--- a/spec/controllers/api/v1/accounts/contacts_controller_spec.rb
+++ b/spec/controllers/api/v1/accounts/contacts_controller_spec.rb
@@ -112,15 +112,15 @@ RSpec.describe 'Contacts API', type: :request do
       end
 
       it 'returns all contacts with company name asc order with null values at last' do
+        contact_3
         get "/api/v1/accounts/#{account.id}/contacts?include_contact_inboxes=false&sort=-company_name",
             headers: admin.create_new_auth_token,
             as: :json
 
         expect(response).to have_http_status(:success)
         response_body = response.parsed_body
-        expect(response_body['payload'].first['email']).to eq(contact_1.email)
-        expect(response_body['payload'].first['id']).to eq(contact_1.id)
-        expect(response_body['payload'].last['email']).to eq(contact_4.email)
+        expect(response_body['payload'].first(2).pluck('id')).to contain_exactly(contact.id, contact_1.id)
+        expect(response_body['payload'].last(2).pluck('id')).to contain_exactly(contact_3.id, contact_4.id)
       end
 
       it 'returns all contacts with country name desc order with null values at last' do
diff --git a/spec/enterprise/controllers/api/v1/accounts/companies/contacts_controller_spec.rb b/spec/enterprise/controllers/api/v1/accounts/companies/contacts_controller_spec.rb
index dbcb7211f..36852c259 100644
--- a/spec/enterprise/controllers/api/v1/accounts/companies/contacts_controller_spec.rb
+++ b/spec/enterprise/controllers/api/v1/accounts/companies/contacts_controller_spec.rb
@@ -3,7 +3,10 @@ require 'rails_helper'
 RSpec.describe 'Company contacts API', type: :request do
   let(:account) { create(:account) }
   let(:admin) { create(:user, account: account, role: :administrator) }
-  let(:company) { create(:company, name: 'Acme', account: account) }
+  let(:company) do
+    create(:company, name: 'Acme', domain: 'acme.com', description: 'Primary account', account: account,
+                     custom_attributes: { 'industry' => 'Manufacturing' })
+  end
 
   before { account.enable_features!(:companies) }
 
@@ -19,8 +22,16 @@ RSpec.describe 'Company contacts API', type: :request do
       expect(response).to have_http_status(:success)
       response_body = response.parsed_body
       expect(response_body['payload'].pluck('id')).to eq([linked_contact.id])
-      expect(response_body['payload'].first['company_id']).to eq(company.id)
-      expect(response_body['payload'].first['linked_to_current_company']).to be true
+      contact_payload = response_body['payload'].first
+      expect(contact_payload['company_id']).to eq(company.id)
+      expect(contact_payload['linked_to_current_company']).to be true
+      expect(contact_payload['company']).to include(
+        'id' => company.id,
+        'name' => 'Acme',
+        'domain' => 'acme.com',
+        'description' => 'Primary account',
+        'custom_attributes' => { 'industry' => 'Manufacturing' }
+      )
       expect(response_body['meta']['total_count']).to eq(1)
     end
   end
@@ -38,9 +49,14 @@ RSpec.describe 'Company contacts API', type: :request do
           as: :json
 
       expect(response).to have_http_status(:success)
-      contact_ids = response.parsed_body['payload'].pluck('id')
+      response_payload = response.parsed_body['payload']
+      contact_ids = response_payload.pluck('id')
       expect(contact_ids).to contain_exactly(available_contact.id, assigned_contact.id)
       expect(contact_ids).not_to include(linked_contact.id)
+      expect(response_payload.find { |contact| contact['id'] == assigned_contact.id }['company']).to include(
+        'id' => other_company.id,
+        'name' => 'Other Company'
+      )
     end
   end
 
@@ -56,7 +72,7 @@ RSpec.describe 'Company contacts API', type: :request do
 
       expect(response).to have_http_status(:success)
       expect(contact.reload.company_id).to eq(company.id)
-      expect(contact.additional_attributes).to eq('city' => 'Berlin')
+      expect(contact.additional_attributes).to eq('city' => 'Berlin', 'company_name' => 'Acme')
       expect(response.parsed_body['payload']['company_id']).to eq(company.id)
       expect(response.parsed_body['payload']['linked_to_current_company']).to be true
       expect(company.reload.last_activity_at).to be_within(1.second).of(contact.last_activity_at)
@@ -74,7 +90,7 @@ RSpec.describe 'Company contacts API', type: :request do
 
       expect(response).to have_http_status(:ok)
       expect(contact.reload.company_id).to be_nil
-      expect(contact.additional_attributes).to eq('company_name' => 'Acme', 'city' => 'Berlin')
+      expect(contact.additional_attributes).to eq('city' => 'Berlin')
     end
   end
 end
diff --git a/spec/enterprise/controllers/api/v1/accounts/contacts_controller_spec.rb b/spec/enterprise/controllers/api/v1/accounts/contacts_controller_spec.rb
new file mode 100644
index 000000000..70d2d4f58
--- /dev/null
+++ b/spec/enterprise/controllers/api/v1/accounts/contacts_controller_spec.rb
@@ -0,0 +1,24 @@
+require 'rails_helper'
+
+RSpec.describe 'Enterprise Contacts API', type: :request do
+  let(:account) { create(:account) }
+  let(:admin) { create(:user, account: account, role: :administrator) }
+
+  before { account.enable_features!(:companies) }
+
+  describe 'PATCH /api/v1/accounts/{account.id}/contacts/:id' do
+    it 'updates company association' do
+      company = create(:company, account: account, name: 'Acme')
+      contact = create(:contact, account: account)
+
+      patch "/api/v1/accounts/#{account.id}/contacts/#{contact.id}",
+            headers: admin.create_new_auth_token,
+            params: { company_id: company.id },
+            as: :json
+
+      expect(response).to have_http_status(:success)
+      expect(contact.reload.company).to eq(company)
+      expect(contact.additional_attributes['company_name']).to eq('Acme')
+    end
+  end
+end
diff --git a/spec/enterprise/models/contact_company_association_spec.rb b/spec/enterprise/models/contact_company_association_spec.rb
index 709893a40..6ed8af4f6 100644
--- a/spec/enterprise/models/contact_company_association_spec.rb
+++ b/spec/enterprise/models/contact_company_association_spec.rb
@@ -67,4 +67,20 @@ RSpec.describe Contact, type: :model do
       end
     end
   end
+
+  describe '#push_event_data' do
+    let(:account) { create(:account) }
+    let(:company) { create(:company, account: account) }
+    let(:contact) { create(:contact, account: account, company: company) }
+
+    it 'includes company_id when companies feature is enabled' do
+      account.enable_features!(:companies)
+
+      expect(contact.push_event_data[:company_id]).to eq(company.id)
+    end
+
+    it 'does not include company_id when companies feature is disabled' do
+      expect(contact.push_event_data).not_to have_key(:company_id)
+    end
+  end
 end
diff --git a/spec/enterprise/services/contacts/company_association_service_spec.rb b/spec/enterprise/services/contacts/company_association_service_spec.rb
index 78ee739c8..c8c6f6525 100644
--- a/spec/enterprise/services/contacts/company_association_service_spec.rb
+++ b/spec/enterprise/services/contacts/company_association_service_spec.rb
@@ -25,6 +25,7 @@ RSpec.describe Contacts::CompanyAssociationService, type: :service do
         expect(contact.company).to be_present
         expect(contact.company.domain).to eq('acme.com')
         expect(contact.company.name).to eq('Acme')
+        expect(contact.additional_attributes['company_name']).to eq('Acme')
       end
 
       it 'reuses existing company with same domain' do
diff --git a/spec/jobs/slack_unfurl_job_spec.rb b/spec/jobs/slack_unfurl_job_spec.rb
index b9be64461..f40efc41d 100644
--- a/spec/jobs/slack_unfurl_job_spec.rb
+++ b/spec/jobs/slack_unfurl_job_spec.rb
@@ -74,8 +74,10 @@ RSpec.describe SlackUnfurlJob do
     end
 
     context 'when another account URL is shared' do
+      let(:another_account) { create(:account) }
+
       before do
-        link_shared[:event][:links][0][:url] = 'https://qa.chatwoot.com/app/accounts/123/conversations/123'
+        link_shared[:event][:links][0][:url] = "https://qa.chatwoot.com/app/accounts/#{another_account.id}/conversations/123"
       end
 
       it 'does not unfurl' do