diff --git a/.changes/unreleased/Feature-20231018-133203.yaml b/.changes/unreleased/Feature-20231018-133203.yaml
new file mode 100644
index 000000000..f839ebcf3
--- /dev/null
+++ b/.changes/unreleased/Feature-20231018-133203.yaml
@@ -0,0 +1,6 @@
+kind: Feature
+body: '[export] add a filter and aggregator on accompanying period work: group/filter
+  by handling third party'
+time: 2023-10-18T13:32:03.565201495+02:00
+custom:
+  Issue: "172"
diff --git a/src/Bundle/ChillMainBundle/Resources/views/Export/new.html.twig b/src/Bundle/ChillMainBundle/Resources/views/Export/new.html.twig
index 8ef4c3ad7..82b3e0c0c 100644
--- a/src/Bundle/ChillMainBundle/Resources/views/Export/new.html.twig
+++ b/src/Bundle/ChillMainBundle/Resources/views/Export/new.html.twig
@@ -1,5 +1,5 @@
 {#
- * Copyright (C) 2014-2015, Champs Libres Cooperative SCRLFS, 
+ * Copyright (C) 2014-2015, Champs Libres Cooperative SCRLFS,
  <info@champs-libres.coop> / <http://www.champs-libres.coop>
  *
  * This program is free software: you can redistribute it and/or modify
@@ -36,84 +36,84 @@
 
 {% block content  %}
     <div class="col-md-10">
-    
+
         {{ include('@ChillMain/Export/_breadcrumb.html.twig') }}
-    
+
         <h1>{{ export.title|trans }}</h1>
-        
+
         <p>{{ export.description|trans }}</p>
-    
+
         {{ form_start(form) }}
-        
+
         {% if form.children.export.children.filters is defined %}
             {% if form.children.export.children.filters is not empty%}
-            
+
             <section class="filter mb-4">
                 <h2>{{ 'Filters'| trans }}</h2>
-                
+
                 {{ form_errors(form.children.export.children.filters) }}
-                
+
                 <div class="flex-table">
                 {% for filter_form in form.children.export.children.filters %}
                     <div class="item-bloc no-altern">
-                        
+
                         {{ form_widget(filter_form.enabled, {
                             'label': filter_form.vars.label,
                             'label_attr': { 'class': 'h6' },
                             'attr': { 'data-display-target': filter_form.vars.id }
                         }) }}
-                        
+
                         <div data-display-show-hide="{{ filter_form.vars.id }}">
                             {{ form_widget(filter_form.form) }}
                             {{ form_errors(filter_form) }}
                         </div>
-                        
+
                     </div>
                 {% endfor %}
                 </div>
             </section>
-            
+
             {% else %}
                 {# render the children, to mark the widget as 'rendered' #}
                 {{ form_widget(form.children.export.children.filters) }}
             {% endif %}
         {% endif %}
-        
+
         {% if form.children.export.children.aggregators is defined %}
             {% if form.children.export.children.aggregators is not empty %}
-            
+
             <section class="aggregator mb-4">
                 <h2>{{ 'Aggregators'| trans }}</h2>
-    
+
                 <div class="flex-table">
                 {% for aggregator_form in form.children.export.children.aggregators %}
                     <div class="item-bloc no-altern">
-                        
+
                         {{ form_widget(aggregator_form.enabled, {
                             'label': aggregator_form.vars.label,
                             'label_attr': { 'class': 'h6' },
                             'attr': { 'data-display-target': aggregator_form.vars.id }
                         }) }}
-                        
+
                         <div data-display-show-hide="{{ aggregator_form.vars.id }}">
                             {{ form_widget(aggregator_form.form) }}
                             {{ form_errors(aggregator_form) }}
                         </div>
-                        
+
                     </div>
                 {% endfor %}
                 </div>
             </section>
-            
+
             {% else %}
                 {# render the children, to mark the widget as 'rendered' #}
                 {{ form_widget(form.children.export.children.aggregators) }}
             {% endif %}
         {% endif %}
-        
-        
+
+
         {% if form.children.export.children.export.children|length > 0 %}
-        
+
             <style>
                 div#export_export_fields { column-count: 2; }
             </style>
@@ -123,12 +123,12 @@
                 </h2>
                 {{ form_widget(form.children.export.children.export) }}
             </section>
-        
+
         {% else %}
             {# render the children, to mark the widget as 'rendered' #}
             {{ form_widget(form.children.export.children.export) }}
         {% endif %}
-        
+
         {% if form.children.export.children.pick_formatter is defined %}
             <section class="formatter mb-4">
                 <h2>
@@ -140,7 +140,7 @@
                 {{ form_row(form.children.export.children.pick_formatter.children.alias, { 'label' : 'Formatter' }) }}
             </section>
         {% endif %}
-        
+
         <p>{{ form_widget(form.submit, { 'attr' : { 'class' : 'btn btn-create' }, 'label' : 'Go to formatter options' } ) }}</p>
         {{ form_end(form) }}
 
diff --git a/src/Bundle/ChillPersonBundle/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregator.php b/src/Bundle/ChillPersonBundle/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregator.php
new file mode 100644
index 000000000..f58246a25
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregator.php
@@ -0,0 +1,73 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators;
+
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\PersonBundle\Export\Declarations;
+use Chill\PersonBundle\Tests\Export\Aggregator\SocialWorkAggregators\HandlingThirdPartyAggregatorTest;
+use Chill\ThirdPartyBundle\Export\Helper\LabelThirdPartyHelper;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+/**
+ * @see HandlingThirdPartyAggregatorTest
+ */
+final readonly class HandlingThirdPartyAggregator implements AggregatorInterface
+{
+    private const PREFIX = 'acpw_handling3party_agg';
+
+    public function __construct(private LabelThirdPartyHelper $labelThirdPartyHelper) {}
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        // no form needed here
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getLabels($key, array $values, mixed $data)
+    {
+        return $this->labelThirdPartyHelper->getLabel($key, $values, 'export.aggregator.course_work.by_handling_third_party.header');
+    }
+
+    public function getQueryKeys($data)
+    {
+        return [self::PREFIX.'_h3party'];
+    }
+
+    public function getTitle()
+    {
+        return 'export.aggregator.course_work.by_handling_third_party.title';
+    }
+
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        $p = self::PREFIX;
+
+        $qb
+            ->addSelect("IDENTITY(acpw.handlingThierParty) AS {$p}_h3party")
+            ->addGroupBy("{$p}_h3party");
+    }
+
+    public function applyOn()
+    {
+        return Declarations::SOCIAL_WORK_ACTION_TYPE;
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/HandlingThirdPartyFilter.php b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/HandlingThirdPartyFilter.php
new file mode 100644
index 000000000..80bc7b04a
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/HandlingThirdPartyFilter.php
@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters;
+
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\PersonBundle\Export\Declarations;
+use Chill\ThirdPartyBundle\Entity\ThirdParty;
+use Chill\ThirdPartyBundle\Form\Type\PickThirdpartyDynamicType;
+use Chill\ThirdPartyBundle\Templating\Entity\ThirdPartyRender;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+final readonly class HandlingThirdPartyFilter implements FilterInterface
+{
+    private const PREFIX = 'acpw_handling_3party_filter';
+
+    public function __construct(
+        private ThirdPartyRender $thirdPartyRender,
+    ) {}
+
+    public function getTitle()
+    {
+        return 'export.filter.work.by_handling3party.title';
+    }
+
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('handling_3parties', PickThirdpartyDynamicType::class, [
+            'label' => 'export.filter.work.by_handling3party.pick_3parties',
+            'multiple' => true,
+        ]);
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return ['handling_3parties' => []];
+    }
+
+    public function describeAction($data, $format = 'string')
+    {
+        return [
+            'export.filter.work.by_handling3party.Only 3 parties %3parties%',
+            [
+                '%3parties%' => implode(
+                    ', ',
+                    array_map(fn (ThirdParty $thirdParty) => $this->thirdPartyRender->renderString($thirdParty, []), $data['handling_3parties'])
+                ),
+            ],
+        ];
+    }
+
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        $p = self::PREFIX;
+
+        $qb->andWhere("acpw.handlingThierParty IN (:{$p}_3ps)");
+        $qb->setParameter("{$p}_3ps", $data['handling_3parties']);
+    }
+
+    public function applyOn()
+    {
+        return Declarations::SOCIAL_WORK_ACTION_TYPE;
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregatorTest.php b/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregatorTest.php
new file mode 100644
index 000000000..3677cedf2
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/SocialWorkAggregators/HandlingThirdPartyAggregatorTest.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\PersonBundle\Tests\Export\Aggregator\SocialWorkAggregators;
+
+use Chill\MainBundle\Test\Export\AbstractAggregatorTest;
+use Chill\PersonBundle\Entity\AccompanyingPeriod\AccompanyingPeriodWork;
+use Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\HandlingThirdPartyAggregator;
+use Doctrine\ORM\EntityManagerInterface;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class HandlingThirdPartyAggregatorTest extends AbstractAggregatorTest
+{
+    private static HandlingThirdPartyAggregator $handlingThirdPartyAggregator;
+
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+        self::bootKernel();
+        self::$handlingThirdPartyAggregator = self::$container->get(HandlingThirdPartyAggregator::class);
+    }
+
+    public function getAggregator()
+    {
+        return self::$handlingThirdPartyAggregator;
+    }
+
+    public function getFormData()
+    {
+        return [
+            [],
+        ];
+    }
+
+    public function getQueryBuilders()
+    {
+        self::bootKernel();
+
+        $em = self::$container
+            ->get(EntityManagerInterface::class);
+
+        return [
+            $em->createQueryBuilder()
+                ->select('count(acpw.id)')
+                ->from(AccompanyingPeriodWork::class, 'acpw'),
+        ];
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Tests/Export/Filter/SocialWorkFilters/HandlingThirdPartyFilterTest.php b/src/Bundle/ChillPersonBundle/Tests/Export/Filter/SocialWorkFilters/HandlingThirdPartyFilterTest.php
new file mode 100644
index 000000000..e454a10fc
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Tests/Export/Filter/SocialWorkFilters/HandlingThirdPartyFilterTest.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\PersonBundle\Tests\Export\Filter\SocialWorkFilters;
+
+use Chill\MainBundle\Test\Export\AbstractFilterTest;
+use Chill\PersonBundle\Entity\AccompanyingPeriod\AccompanyingPeriodWork;
+use Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters\HandlingThirdPartyFilter;
+use Chill\ThirdPartyBundle\Entity\ThirdParty;
+use Chill\ThirdPartyBundle\Templating\Entity\ThirdPartyRender;
+use Doctrine\ORM\EntityManagerInterface;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class HandlingThirdPartyFilterTest extends AbstractFilterTest
+{
+    private ThirdPartyRender $thirdPartyRender;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        self::bootKernel();
+        $this->thirdPartyRender = self::$container->get(ThirdPartyRender::class);
+    }
+
+    public function getFilter()
+    {
+        return new HandlingThirdPartyFilter($this->thirdPartyRender);
+    }
+
+    public function getFormData()
+    {
+        self::bootKernel();
+
+        $em = self::$container->get(EntityManagerInterface::class);
+
+        $thirdParties = $em->createQuery('SELECT tp FROM '.ThirdParty::class.' tp')
+            ->setMaxResults(2)
+            ->getResult();
+
+        return [
+            [
+                'handling_3parties' => $thirdParties,
+            ],
+        ];
+    }
+
+    public function getQueryBuilders()
+    {
+        self::bootKernel();
+
+        $em = self::$container->get(EntityManagerInterface::class);
+
+        return [
+            $em->createQueryBuilder()
+                ->select('acpw.id')
+                ->from(AccompanyingPeriodWork::class, 'acpw'),
+        ];
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/config/services/exports_social_actions.yaml b/src/Bundle/ChillPersonBundle/config/services/exports_social_actions.yaml
index c0e6abc4b..57be6bf40 100644
--- a/src/Bundle/ChillPersonBundle/config/services/exports_social_actions.yaml
+++ b/src/Bundle/ChillPersonBundle/config/services/exports_social_actions.yaml
@@ -1,116 +1,93 @@
 services:
+    _defaults:
+        autowire: true
+        autoconfigure: true
 
-  ## Indicators
-  Chill\PersonBundle\Export\Export\CountAccompanyingPeriodWork:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export, alias: count_social_work_actions }
+    ## Indicators
+    Chill\PersonBundle\Export\Export\CountAccompanyingPeriodWork:
+        tags:
+            - { name: chill.export, alias: count_social_work_actions }
 
-  Chill\PersonBundle\Export\Export\ListAccompanyingPeriodWork:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export, alias: list_social_work_actions }
+    Chill\PersonBundle\Export\Export\ListAccompanyingPeriodWork:
+        tags:
+            - { name: chill.export, alias: list_social_work_actions }
 
-  ## FILTERS
-  chill.person.export.filter_social_work_type:
-     class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\SocialWorkTypeFilter
-     autowire: true
-     autoconfigure: true
-     tags:
-         - { name: chill.export_filter, alias: social_work_type_filter }
+    ## FILTERS
+    chill.person.export.filter_social_work_type:
+        class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\SocialWorkTypeFilter
+        tags:
+            - { name: chill.export_filter, alias: social_work_type_filter }
 
-  chill.person.export.filter_scope:
-    class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\ScopeFilter
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_filter, alias: social_work_actions_scope_filter }
+    chill.person.export.filter_scope:
+        class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\ScopeFilter
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_scope_filter }
 
-  chill.person.export.filter_job:
-    class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\JobFilter
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_filter, alias: social_work_actions_job_filter }
+    chill.person.export.filter_job:
+        class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\JobFilter
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_job_filter }
 
-  chill.person.export.filter_treatingagent:
-    class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\ReferrerFilter
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_filter, alias: social_work_actions_treatingagent_filter }
+    chill.person.export.filter_treatingagent:
+        class: Chill\PersonBundle\Export\Filter\SocialWorkFilters\ReferrerFilter
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_treatingagent_filter }
 
-  Chill\PersonBundle\Export\Filter\SocialWorkFilters\CurrentActionFilter:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_filter, alias: social_work_actions_current_filter }
+    Chill\PersonBundle\Export\Filter\SocialWorkFilters\CurrentActionFilter:
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_current_filter }
 
-  Chill\PersonBundle\Export\Filter\SocialWorkFilters\AccompanyingPeriodWorkStartDateBetweenDateFilter:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_filter, alias: social_work_actions_start_btw_dates_filter }
+    Chill\PersonBundle\Export\Filter\SocialWorkFilters\AccompanyingPeriodWorkStartDateBetweenDateFilter:
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_start_btw_dates_filter }
 
-  Chill\PersonBundle\Export\Filter\SocialWorkFilters\AccompanyingPeriodWorkEndDateBetweenDateFilter:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_filter, alias: social_work_actions_end_btw_dates_filter }
+    Chill\PersonBundle\Export\Filter\SocialWorkFilters\AccompanyingPeriodWorkEndDateBetweenDateFilter:
+        tags:
+            - { name: chill.export_filter, alias: social_work_actions_end_btw_dates_filter }
 
-      ## AGGREGATORS
-  chill.person.export.aggregator_action_type:
-    class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ActionTypeAggregator
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_aggregator, alias: social_work_actions_action_type_aggregator }
+        ## AGGREGATORS
+    chill.person.export.aggregator_action_type:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ActionTypeAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_action_type_aggregator }
 
-  chill.person.export.aggregator_treatingagent_scope:
-      class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ScopeAggregator
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_scope_aggregator }
+    chill.person.export.aggregator_treatingagent_scope:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ScopeAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_scope_aggregator }
 
-  chill.person.export.aggregator_treatingagent_job:
-      class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\JobAggregator
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_job_aggregator }
+    chill.person.export.aggregator_treatingagent_job:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\JobAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_job_aggregator }
 
-  Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ReferrerAggregator:
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_aggregator }
+    Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ReferrerAggregator:
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_treatingagent_aggregator }
 
-  chill.person.export.aggregator_goal:
-    class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\GoalAggregator
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_aggregator, alias: social_work_actions_goal_aggregator }
+    chill.person.export.aggregator_goal:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\GoalAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_goal_aggregator }
 
-  chill.person.export.aggregator_result:
-    class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ResultAggregator
-    autowire: true
-    autoconfigure: true
-    tags:
-        - { name: chill.export_aggregator, alias: social_work_actions_result_aggregator }
+    chill.person.export.aggregator_result:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\ResultAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_result_aggregator }
 
-  chill.person.export.aggregator_goalresult:
-      class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\GoalResultAggregator
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_aggregator, alias: social_work_actions_goal_result_aggregator }
+    chill.person.export.aggregator_goalresult:
+        class: Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\GoalResultAggregator
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_goal_result_aggregator }
 
-  Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\CurrentActionAggregator:
-      autowire: true
-      autoconfigure: true
-      tags:
-          - { name: chill.export_aggregator, alias: social_work_actions_current_aggregator }
+    Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\CurrentActionAggregator:
+        tags:
+            - { name: chill.export_aggregator, alias: social_work_actions_current_aggregator }
+
+    Chill\PersonBundle\Export\Aggregator\SocialWorkAggregators\HandlingThirdPartyAggregator:
+        tags:
+            - { name: chill.export_aggregator, alias: accompanyingcourse_handling3party_aggregator }
+
+    Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters\HandlingThirdPartyFilter:
+        tags:
+            - { name: chill.export_filter, alias: 'acpw_handling3party_filter'}
diff --git a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
index 0c5a0fe57..4ab5d88a6 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
@@ -1066,6 +1066,9 @@ export:
             by_agent_job:
                 Group by treating agent job: Grouper les actions par métier de l'agent traitant
                 Calc date: Date de calcul du métier de l'agent traitant
+            by_handling_third_party:
+                title: Grouper les actions par tiers traitant
+                header: Tiers traitant
 
         eval:
             by_end_date:
@@ -1181,6 +1184,10 @@ export:
                 Calc date: Date à laquelle l'agent est en situation de désignation sur l'action
                 calc_date_help: Il s'agit de la date à laquelle l'agent est actif comme agent traitant de l'action, et non la date à la quelle l'agent est désigné comme agent traitant.
                 "Filtered by treating agent: only %agents%": "Filtré par agent traitant: uniquement %agents%"
+            by_handling3party:
+                title: Filtrer les actions par tiers traitant
+                Only 3 parties %3parties%: "Seulement les actions d'accompagnement qui ont pour tiers traitant: %3parties%"
+                pick_3parties: Tiers traitants des actions
 
     list:
         person_with_acp:
diff --git a/src/Bundle/ChillThirdPartyBundle/Export/Helper/LabelThirdPartyHelper.php b/src/Bundle/ChillThirdPartyBundle/Export/Helper/LabelThirdPartyHelper.php
index 9b4cbfa75..e92cdae93 100644
--- a/src/Bundle/ChillThirdPartyBundle/Export/Helper/LabelThirdPartyHelper.php
+++ b/src/Bundle/ChillThirdPartyBundle/Export/Helper/LabelThirdPartyHelper.php
@@ -25,7 +25,7 @@ class LabelThirdPartyHelper
                 return $header;
             }
 
-            if (null === $value || null === $thirdParty = $this->thirdPartyRepository->find($value)) {
+            if ('' === $value || null === $value || null === $thirdParty = $this->thirdPartyRepository->find($value)) {
                 return '';
             }