diff --git a/.changes/unreleased/Feature-20251230-164303.yaml b/.changes/unreleased/Feature-20251230-164303.yaml
new file mode 100644
index 000000000..f402e60bf
--- /dev/null
+++ b/.changes/unreleased/Feature-20251230-164303.yaml
@@ -0,0 +1,6 @@
+kind: Feature
+body: Add filter and aggregator based on referrer's main center for exports of accompanying period
+time: 2025-12-30T16:43:03.898677616+01:00
+custom:
+    Issue: "486"
+    SchemaChange: No schema change
diff --git a/.junie/guidelines.md b/.junie/guidelines.md
index ff84fdffa..df0efdfbb 100644
--- a/.junie/guidelines.md
+++ b/.junie/guidelines.md
@@ -238,13 +238,13 @@ The tests are run from the project's root (not from the bundle's root).
 
 ```bash
 # Run all tests
-vendor/bin/phpunit
+symfony composer exec phpunit
 
 # Run a specific test file
-vendor/bin/phpunit path/to/TestFile.php
+symfony composer exec phpunit -- path/to/TestFile.php
 
 # Run a specific test method
-vendor/bin/phpunit --filter methodName path/to/TestFile.php
+symfony composer exec phpunit --filter methodName path/to/TestFile.php
 ```
 
 When writing tests, only test specific files. Do not run all tests or the full
diff --git a/src/Bundle/ChillMainBundle/Test/Export/AbstractFilterTest.php b/src/Bundle/ChillMainBundle/Test/Export/AbstractFilterTest.php
index e76d7d504..21a8e78c5 100644
--- a/src/Bundle/ChillMainBundle/Test/Export/AbstractFilterTest.php
+++ b/src/Bundle/ChillMainBundle/Test/Export/AbstractFilterTest.php
@@ -17,6 +17,7 @@ use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\ORM\QueryBuilder;
 use Prophecy\PhpUnit\ProphecyTrait;
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Contracts\Translation\TranslatableInterface;
 
 /**
  *  Helper to test filters.
@@ -255,8 +256,8 @@ abstract class AbstractFilterTest extends KernelTestCase
         $description = $this->getFilter()->describeAction($data, $context);
 
         $this->assertTrue(
-            \is_string($description) || \is_array($description),
-            'test that the description is a string or an array'
+            \is_string($description) || \is_array($description) || $description instanceof TranslatableInterface,
+            'test that the description is a string or an array, or a TranslatableInterface'
         );
 
         if (\is_string($description)) {
diff --git a/src/Bundle/ChillMainBundle/translations/messages.fr.yml b/src/Bundle/ChillMainBundle/translations/messages.fr.yml
index 387c16662..9a3f56afd 100644
--- a/src/Bundle/ChillMainBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillMainBundle/translations/messages.fr.yml
@@ -1,3 +1,7 @@
+common:
+    after: Après
+    until: Jusqu'à
+    centers: Territoires
 "This program is free software: you can redistribute it and/or modify it under the terms of the <strong>GNU Affero General Public License</strong>": "Ce programme est un logiciel libre: vous pouvez le redistribuer et/ou le modifier selon les termes de la licence <strong>GNU Affero GPL</strong>"
 User manual: Manuel d'utilisation
 Search: Rechercher
diff --git a/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregator.php b/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregator.php
new file mode 100644
index 000000000..6079b0a1b
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregator.php
@@ -0,0 +1,143 @@
+<?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\AccompanyingCourseAggregators;
+
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\MainBundle\Export\DataTransformerInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Repository\CenterRepositoryInterface;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Chill\MainBundle\Service\RollingDate\RollingDateConverterInterface;
+use Chill\PersonBundle\Export\Declarations;
+use Doctrine\ORM\Query\Expr\Join;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+final readonly class ReferrerMainCenterAggregator implements AggregatorInterface, DataTransformerInterface
+{
+    private const P = 'acp_agg_referrer_main_center';
+
+    public function __construct(
+        private CenterRepositoryInterface $centerRepository,
+        private RollingDateConverterInterface $rollingDateConverter,
+    ) {}
+
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data, \Chill\MainBundle\Export\ExportGenerationContext $exportGenerationContext): void
+    {
+        $p = self::P;
+
+        $qb
+            ->leftJoin('acp.userHistories', "{$p}_uh", Join::WITH, $qb->expr()->andX(
+                $qb->expr()->eq("{$p}_uh.accompanyingPeriod", 'acp.id'),
+                "OVERLAPSI (acp.openingDate, acp.closingDate), ({$p}_uh.startDate, {$p}_uh.endDate) = TRUE",
+                "OVERLAPSI (:{$p}_startDate, :{$p}_endDate), ({$p}_uh.startDate, {$p}_uh.endDate) = TRUE"
+            ))
+            ->leftJoin("{$p}_uh.user", "{$p}_user")
+            ->addSelect("IDENTITY({$p}_user.mainCenter) AS {$p}_select")
+            ->addGroupBy("{$p}_select")
+            ->setParameter("{$p}_startDate", $this->rollingDateConverter->convert($data['start_date']))
+            ->setParameter("{$p}_endDate", $this->rollingDateConverter->convert($data['end_date']));
+    }
+
+    public function applyOn(): string
+    {
+        return Declarations::ACP_TYPE;
+    }
+
+    public function buildForm(FormBuilderInterface $builder): void
+    {
+        $builder
+            ->add('start_date', PickRollingDateType::class, [
+                'label' => 'common.after',
+                'required' => true,
+            ])
+            ->add('end_date', PickRollingDateType::class, [
+                'label' => 'common.until',
+                'required' => true,
+            ]);
+    }
+
+    public function getNormalizationVersion(): int
+    {
+        return 1;
+    }
+
+    public function normalizeFormData(array $formData): array
+    {
+        return [
+            'start_date' => $formData['start_date']->normalize(),
+            'end_date' => $formData['end_date']->normalize(),
+        ];
+    }
+
+    public function denormalizeFormData(array $formData, int $fromVersion): array
+    {
+        $default = $this->getFormDefaultData();
+
+        return [
+            'start_date' => array_key_exists('start_date', $formData) ? RollingDate::fromNormalized($formData['start_date']) : $default['start_date'],
+            'end_date' => array_key_exists('end_date', $formData) ? RollingDate::fromNormalized($formData['end_date']) : $default['end_date'],
+        ];
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [
+            'start_date' => new RollingDate(RollingDate::T_YEAR_CURRENT_START),
+            'end_date' => new RollingDate(RollingDate::T_TODAY),
+        ];
+    }
+
+    public function transformData(?array $before): array
+    {
+        $default = $this->getFormDefaultData();
+
+        if (null === $before) {
+            return $default;
+        }
+
+        return [
+            'start_date' => $before['start_date'] ?? $before['date_calc'] ?? $default['start_date'],
+            'end_date' => $before['end_date'] ?? $before['date_calc'] ?? $default['end_date'],
+        ];
+    }
+
+    public function getLabels($key, array $values, $data): callable
+    {
+        return function ($value): string {
+            if ('_header' === $value) {
+                return 'person.export.period.aggregator.by_referrer_main_center.column_header';
+            }
+
+            if (null === $value || '' === $value) {
+                return '';
+            }
+
+            return (string) $this->centerRepository->find((int) $value)?->getName();
+        };
+    }
+
+    public function getQueryKeys($data): array
+    {
+        return [self::P.'_select'];
+    }
+
+    public function getTitle(): string
+    {
+        return 'person.export.period.aggregator.by_referrer_main_center.title';
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Export/Aggregator/PersonAggregators/CenterAggregator.php b/src/Bundle/ChillPersonBundle/Export/Aggregator/PersonAggregators/CenterAggregator.php
index bf9901207..a8c4d090e 100644
--- a/src/Bundle/ChillPersonBundle/Export/Aggregator/PersonAggregators/CenterAggregator.php
+++ b/src/Bundle/ChillPersonBundle/Export/Aggregator/PersonAggregators/CenterAggregator.php
@@ -64,7 +64,7 @@ final readonly class CenterAggregator implements AggregatorInterface
     {
         return function (int|string|null $value) {
             if (null === $value || '' === $value) {
-                return $this->translator->trans('person.export.aggregator.by_center.no_center');
+                return $this->translator->trans('person.export.period.aggregator.by_center.no_center');
             }
 
             if ('_header' === $value) {
diff --git a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilter.php b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilter.php
new file mode 100644
index 000000000..d534cfa2e
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilter.php
@@ -0,0 +1,155 @@
+<?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\Entity\Center;
+use Chill\MainBundle\Export\ExportGenerationContext;
+use Chill\MainBundle\Export\FilterInterface;
+use Chill\MainBundle\Form\Type\PickRollingDateType;
+use Chill\MainBundle\Repository\CenterRepositoryInterface;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Chill\MainBundle\Service\RollingDate\RollingDateConverterInterface;
+use Chill\PersonBundle\Entity\AccompanyingPeriod\UserHistory;
+use Chill\PersonBundle\Export\Declarations;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Translation\TranslatableMessage;
+use Symfony\Contracts\Translation\TranslatableInterface;
+
+/**
+ * Filter accompanying periods by the main center of their referrer (at a given date).
+ */
+final readonly class ReferrerMainCenterFilter implements FilterInterface
+{
+    private const UH = 'acp_referrer_main_center_filter_uh';
+    private const DATE_PARAM_SINCE = 'acp_referrer_main_center_filter_date_since';
+    private const DATE_PARAM_UNTIL = 'acp_referrer_main_center_filter_date_until';
+
+    private const CENTER_PARAM = 'acp_referrer_main_center_filter_center';
+
+    public function __construct(
+        private RollingDateConverterInterface $rollingDateConverter,
+        private CenterRepositoryInterface $centerRepository,
+    ) {}
+
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data, ExportGenerationContext $exportGenerationContext): void
+    {
+        $dql = 'SELECT 1 FROM '.UserHistory::class.' '.self::UH.'
+        JOIN '.self::UH.'.user '.self::UH.'_user
+        WHERE acp = '.self::UH.'.accompanyingPeriod
+        AND (
+            '.self::UH.'.startDate < :'.self::DATE_PARAM_UNTIL.'
+            AND (
+                '.self::UH.'.endDate IS NULL OR '.self::UH.'.endDate >= :'.self::DATE_PARAM_SINCE.'
+            )
+        )
+        AND '.self::UH.'_user.mainCenter IN (:'.self::CENTER_PARAM.')';
+
+        $qb->andWhere(
+            $qb->expr()->exists($dql)
+        );
+        $qb
+            ->setParameter(self::DATE_PARAM_SINCE, $this->rollingDateConverter->convert($data['date_calc_since']))
+            ->setParameter(self::DATE_PARAM_UNTIL, $this->rollingDateConverter->convert($data['date_calc_until']))
+            ->setParameter(self::CENTER_PARAM, $data['centers']);
+    }
+
+    public function applyOn(): string
+    {
+        return Declarations::ACP_TYPE;
+    }
+
+    public function buildForm(FormBuilderInterface $builder): void
+    {
+        $builder
+            ->add('centers', EntityType::class, [
+                'class' => Center::class,
+                'choices' => $this->centerRepository->findActive(),
+                'multiple' => true,
+                'expanded' => false,
+                'choice_label' => static fn (Center $c) => $c->getName(),
+                'required' => true,
+                'label' => 'common.centers',
+                'attr' => [
+                    'class' => 'select2',
+                ],
+            ])
+            ->add('date_calc_since', PickRollingDateType::class, [
+                'label' => 'person.export.period.filter.by_referrer_main_center.referrer_since',
+                'required' => true,
+            ])
+            ->add('date_calc_until', PickRollingDateType::class, [
+                'label' => 'person.export.period.filter.by_referrer_main_center.referrer_until',
+                'required' => true,
+            ]);
+    }
+
+    public function getNormalizationVersion(): int
+    {
+        return 1;
+    }
+
+    public function normalizeFormData(array $formData): array
+    {
+        return [
+            'centers' => array_values(array_map(static fn (Center $c) => $c->getId(), $formData['centers'])),
+            'date_calc_since' => $formData['date_calc_since']->normalize(),
+            'date_calc_until' => $formData['date_calc_until']->normalize(),
+        ];
+    }
+
+    public function denormalizeFormData(array $formData, int $fromVersion): array
+    {
+        return [
+            'centers' => array_values(array_filter(array_map(
+                fn (int $id) => $this->centerRepository->find($id),
+                $formData['centers'] ?? []
+            ))),
+            'date_calc_since' => RollingDate::fromNormalized($formData['date_calc_since']),
+            'date_calc_until' => RollingDate::fromNormalized($formData['date_calc_until']),
+        ];
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [
+            'centers' => [],
+            'date_calc_since' => new RollingDate(RollingDate::T_TODAY),
+            'date_calc_until' => new RollingDate(RollingDate::T_TODAY),
+        ];
+    }
+
+    public function describeAction($data, ExportGenerationContext $context): TranslatableInterface
+    {
+        $names = array_map(static fn (Center $c) => $c->getName(), $data['centers']);
+
+        return new TranslatableMessage(
+            'person.export.period.filter.by_referrer_main_center.description',
+            [
+                'centers' => implode(', ', $names),
+                'date_since' => $this->rollingDateConverter->convert($data['date_calc_since']),
+                'date_until' => $this->rollingDateConverter->convert($data['date_calc_until']),
+            ]
+        );
+    }
+
+    public function getTitle(): TranslatableInterface
+    {
+        return new TranslatableMessage('person.export.period.filter.by_referrer_main_center.title');
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregatorTest.php b/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregatorTest.php
new file mode 100644
index 000000000..5141f1899
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Tests/Export/Aggregator/AccompanyingCourseAggregators/ReferrerMainCenterAggregatorTest.php
@@ -0,0 +1,123 @@
+<?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\AccompanyingCourseAggregators;
+
+use Chill\MainBundle\Entity\Center;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Chill\MainBundle\Test\Export\AbstractAggregatorTest;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\ReferrerMainCenterAggregator;
+use Doctrine\ORM\EntityManagerInterface;
+
+/**
+ * @internal
+ *
+ * @covers \Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\ReferrerMainCenterAggregator
+ */
+final class ReferrerMainCenterAggregatorTest extends AbstractAggregatorTest
+{
+    private ReferrerMainCenterAggregator $aggregator;
+
+    protected function setUp(): void
+    {
+        self::bootKernel();
+
+        $this->aggregator = self::getContainer()->get('Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\ReferrerMainCenterAggregator');
+    }
+
+    /**
+     * @dataProvider provideBeforeData
+     */
+    public function testDataTransformer(?array $before, array $expected): void
+    {
+        $actual = $this->getAggregator()->transformData($before);
+
+        self::assertEqualsCanonicalizing(array_keys($expected), array_keys($actual));
+        foreach (['start_date', 'end_date'] as $key) {
+            self::assertInstanceOf(RollingDate::class, $actual[$key]);
+            self::assertEquals($expected[$key]->getRoll(), $actual[$key]->getRoll(), "Check that the roll is the same for {$key}");
+        }
+    }
+
+    public static function provideBeforeData(): iterable
+    {
+        yield [
+            ['date_calc' => new RollingDate(RollingDate::T_TODAY)],
+            ['start_date' => new RollingDate(RollingDate::T_TODAY), 'end_date' => new RollingDate(RollingDate::T_TODAY)],
+        ];
+
+        yield [
+            ['start_date' => new RollingDate(RollingDate::T_WEEK_CURRENT_START), 'end_date' => new RollingDate(RollingDate::T_TODAY)],
+            ['start_date' => new RollingDate(RollingDate::T_WEEK_CURRENT_START), 'end_date' => new RollingDate(RollingDate::T_TODAY)],
+        ];
+
+        yield [
+            null,
+            // this is the default configuration
+            ['start_date' => new RollingDate(RollingDate::T_YEAR_CURRENT_START), 'end_date' => new RollingDate(RollingDate::T_TODAY)],
+        ];
+    }
+
+    public function getAggregator(): ReferrerMainCenterAggregator
+    {
+        return $this->aggregator;
+    }
+
+    public static function getFormData(): array
+    {
+        self::bootKernel();
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+        $centers = $em->getRepository(Center::class)->findBy([], null, 1);
+
+        return [
+            [
+                'start_date' => new RollingDate(RollingDate::T_YEAR_CURRENT_START),
+                'end_date' => new RollingDate(RollingDate::T_TODAY),
+            ],
+        ];
+    }
+
+    public static function provideGetResultsAndLabels(): iterable
+    {
+        self::bootKernel();
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+        $centers = $em->getRepository(Center::class)->findAll();
+
+        $qb = $em->createQueryBuilder()
+            ->select('count(acp.id)')
+            ->from(AccompanyingPeriod::class, 'acp');
+
+        $data = [
+            'start_date' => new RollingDate(RollingDate::T_YEAR_CURRENT_START),
+            'end_date' => new RollingDate(RollingDate::T_TODAY),
+        ];
+
+        // Yield result with each center ID and null
+        foreach ($centers as $center) {
+            yield [$qb, $data, [(string) $center->getId() => 0]];
+        }
+
+        yield [$qb, $data, ['' => 0]];
+    }
+
+    public static function getQueryBuilders(): iterable
+    {
+        self::bootKernel();
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+
+        return [
+            $em->createQueryBuilder()
+                ->select('count(acp.id)')
+                ->from(AccompanyingPeriod::class, 'acp'),
+        ];
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Tests/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilterTest.php b/src/Bundle/ChillPersonBundle/Tests/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilterTest.php
new file mode 100644
index 000000000..b1bc27888
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Tests/Export/Filter/AccompanyingCourseFilters/ReferrerMainCenterFilterTest.php
@@ -0,0 +1,69 @@
+<?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\AccompanyingCourseFilters;
+
+use Chill\MainBundle\Entity\Center;
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Chill\MainBundle\Test\Export\AbstractFilterTest;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters\ReferrerMainCenterFilter;
+use Doctrine\ORM\EntityManagerInterface;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+final class ReferrerMainCenterFilterTest extends AbstractFilterTest
+{
+    private ReferrerMainCenterFilter $filter;
+
+    protected function setUp(): void
+    {
+        self::bootKernel();
+
+        $this->filter = self::getContainer()->get(ReferrerMainCenterFilter::class);
+    }
+
+    public function getFilter(): ReferrerMainCenterFilter
+    {
+        return $this->filter;
+    }
+
+    public static function getFormData(): array
+    {
+        self::bootKernel();
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+        $centers = $em->getRepository(Center::class)->findAll();
+
+        if ([] === $centers) {
+            throw new \RuntimeException('No centers found in database');
+        }
+
+        return [
+            [
+                'centers' => [$centers[0]],
+                'date_calc_since' => new RollingDate(RollingDate::T_TODAY),
+                'date_calc_until' => new RollingDate(RollingDate::T_TODAY),
+            ],
+        ];
+    }
+
+    public static function getQueryBuilders(): iterable
+    {
+        self::bootKernel();
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+        yield $em->createQueryBuilder()
+            ->from(AccompanyingPeriod::class, 'acp')
+            ->select('acp.id');
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml b/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
index d488df8d6..b7ab71d40 100644
--- a/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
+++ b/src/Bundle/ChillPersonBundle/config/services/exports_accompanying_course.yaml
@@ -104,6 +104,10 @@ services:
         tags:
             - { name: chill.export_filter, alias: accompanyingcourse_referrer_filter_between_dates }
 
+    Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters\ReferrerMainCenterFilter:
+        tags:
+            - { name: chill.export_filter, alias: accompanyingcourse_referrer_main_center_filter }
+
     chill.person.export.filter_openbetweendates:
         class: Chill\PersonBundle\Export\Filter\AccompanyingCourseFilters\OpenBetweenDatesFilter
         tags:
@@ -270,3 +274,7 @@ services:
     Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\PersonParticipatingAggregator:
         tags:
             - { name: chill.export_aggregator, alias: accompanyingcourse_person_part_aggregator }
+
+    Chill\PersonBundle\Export\Aggregator\AccompanyingCourseAggregators\ReferrerMainCenterAggregator:
+        tags:
+            - { name: chill.export_aggregator, alias: accompanyingcourse_referrer_main_center_aggregator }
diff --git a/src/Bundle/ChillPersonBundle/translations/messages+intl-icu.fr.yaml b/src/Bundle/ChillPersonBundle/translations/messages+intl-icu.fr.yaml
index dc5f2e992..5a3d3d5a3 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages+intl-icu.fr.yaml
+++ b/src/Bundle/ChillPersonBundle/translations/messages+intl-icu.fr.yaml
@@ -41,6 +41,13 @@ person:
             neutral {et lui·elle-même}
             other {et lui·elle-même}
         }
+    export:
+        period:
+            filter:
+                by_referrer_main_center:
+                    description: >-
+                        Filtre les parcours par territoire du référent, entre le {date_since, date, medium} et le {date_until, date, medium}, uniquement {centers}
+
 
 household:
     Household: Ménage
diff --git a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
index ad97767d2..a2a2fb048 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
@@ -105,9 +105,18 @@ Administrative status: Situation administrative
 person:
     # trans key according to new conventions
     export:
-        aggregator:
-            by_center:
-                no_center: Sans territoire
+        period:
+            aggregator:
+                by_center:
+                    no_center: Sans territoire
+                by_referrer_main_center:
+                    title: Grouper les parcours par territoire du référent
+                    column_header: Territoire du référent
+            filter:
+                by_referrer_main_center:
+                    title: Filtrer les parcours par territoire du référent
+                    referrer_since: Référent depuis le
+                    referrer_until: Référent avant le
     Identifiers: Identifiants