diff --git a/src/Bundle/ChillAsideActivityBundle/src/Export/Aggregator/ByConcernedPersonsCountAggregator.php b/src/Bundle/ChillAsideActivityBundle/src/Export/Aggregator/ByConcernedPersonsCountAggregator.php
new file mode 100644
index 000000000..444c49269
--- /dev/null
+++ b/src/Bundle/ChillAsideActivityBundle/src/Export/Aggregator/ByConcernedPersonsCountAggregator.php
@@ -0,0 +1,86 @@
+<?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\AsideActivityBundle\Export\Aggregator;
+
+use Chill\AsideActivityBundle\Export\Declarations;
+use Chill\MainBundle\Export\AggregatorInterface;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class ByConcernedPersonsCountAggregator implements AggregatorInterface
+{
+    public function addRole(): ?string
+    {
+        return null;
+    }
+
+    public function alterQuery(QueryBuilder $qb, $data, \Chill\MainBundle\Export\ExportGenerationContext $exportGenerationContext): void
+    {
+        $qb->addSelect('aside.concernedPersonsCount AS by_concerned_persons_count_aggregator')
+            ->addGroupBy('by_concerned_persons_count_aggregator');
+    }
+
+    public function applyOn(): string
+    {
+        return Declarations::ASIDE_ACTIVITY_TYPE;
+    }
+
+    public function buildForm(FormBuilderInterface $builder): void
+    {
+        // No form needed
+    }
+
+    public function getNormalizationVersion(): int
+    {
+        return 1;
+    }
+
+    public function normalizeFormData(array $formData): array
+    {
+        return [];
+    }
+
+    public function denormalizeFormData(array $formData, int $fromVersion): array
+    {
+        return [];
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getLabels($key, array $values, $data): callable
+    {
+        return function ($value): string {
+            if ('_header' === $value) {
+                return 'export.aggregator.Concerned persons count';
+            }
+
+            if (null === $value) {
+                return 'export.aggregator.No concerned persons count specified';
+            }
+
+            return (string) $value;
+        };
+    }
+
+    public function getQueryKeys($data): array
+    {
+        return ['by_concerned_persons_count_aggregator'];
+    }
+
+    public function getTitle(): string
+    {
+        return 'export.aggregator.Group by concerned persons count';
+    }
+}
diff --git a/src/Bundle/ChillAsideActivityBundle/src/Export/Export/SumConcernedPersonsCountAsideActivity.php b/src/Bundle/ChillAsideActivityBundle/src/Export/Export/SumConcernedPersonsCountAsideActivity.php
new file mode 100644
index 000000000..ab22302c2
--- /dev/null
+++ b/src/Bundle/ChillAsideActivityBundle/src/Export/Export/SumConcernedPersonsCountAsideActivity.php
@@ -0,0 +1,116 @@
+<?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\AsideActivityBundle\Export\Export;
+
+use Chill\AsideActivityBundle\Export\Declarations;
+use Chill\AsideActivityBundle\Repository\AsideActivityRepository;
+use Chill\AsideActivityBundle\Security\AsideActivityVoter;
+use Chill\MainBundle\Export\ExportInterface;
+use Chill\MainBundle\Export\FormatterInterface;
+use Chill\MainBundle\Export\GroupedExportInterface;
+use Doctrine\ORM\Query;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class SumConcernedPersonsCountAsideActivity implements ExportInterface, GroupedExportInterface
+{
+    public function __construct(private readonly AsideActivityRepository $repository) {}
+
+    public function buildForm(FormBuilderInterface $builder) {}
+
+    public function getNormalizationVersion(): int
+    {
+        return 1;
+    }
+
+    public function normalizeFormData(array $formData): array
+    {
+        return [];
+    }
+
+    public function denormalizeFormData(array $formData, int $fromVersion): array
+    {
+        return [];
+    }
+
+    public function getFormDefaultData(): array
+    {
+        return [];
+    }
+
+    public function getAllowedFormattersTypes(): array
+    {
+        return [FormatterInterface::TYPE_TABULAR];
+    }
+
+    public function getDescription(): string
+    {
+        return 'export.Sum concerned persons count for aside activities';
+    }
+
+    public function getGroup(): string
+    {
+        return 'export.Exports of aside activities';
+    }
+
+    public function getLabels($key, array $values, $data)
+    {
+        if ('export_sum_concerned_persons_count' !== $key) {
+            throw new \LogicException("the key {$key} is not used by this export");
+        }
+
+        $labels = array_combine($values, $values);
+        $labels['_header'] = $this->getTitle();
+
+        return static fn ($value) => $labels[$value];
+    }
+
+    public function getQueryKeys($data): array
+    {
+        return ['export_sum_concerned_persons_count'];
+    }
+
+    public function getResult($query, $data, \Chill\MainBundle\Export\ExportGenerationContext $context): array
+    {
+        return $query->getQuery()->getResult(Query::HYDRATE_SCALAR);
+    }
+
+    public function getTitle(): string
+    {
+        return 'export.Sum concerned persons count for aside activities';
+    }
+
+    public function getType(): string
+    {
+        return Declarations::ASIDE_ACTIVITY_TYPE;
+    }
+
+    public function initiateQuery(array $requiredModifiers, array $acl, array $data, \Chill\MainBundle\Export\ExportGenerationContext $context): \Doctrine\ORM\QueryBuilder
+    {
+        $qb = $this->repository->createQueryBuilder('aside');
+
+        $qb->select('SUM(COALESCE(aside.concernedPersonsCount, 0)) as export_sum_concerned_persons_count');
+
+        return $qb;
+    }
+
+    public function requiredRole(): string
+    {
+        return AsideActivityVoter::STATS;
+    }
+
+    public function supportsModifiers(): array
+    {
+        return [
+            Declarations::ASIDE_ACTIVITY_TYPE,
+        ];
+    }
+}
diff --git a/src/Bundle/ChillAsideActivityBundle/src/config/services/export.yaml b/src/Bundle/ChillAsideActivityBundle/src/config/services/export.yaml
index 40cb120da..efba7a8af 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/config/services/export.yaml
+++ b/src/Bundle/ChillAsideActivityBundle/src/config/services/export.yaml
@@ -20,6 +20,10 @@ services:
       tags:
           - { name: chill.export, alias: 'avg_aside_activity_duration' }
 
+  Chill\AsideActivityBundle\Export\Export\SumConcernedPersonsCountAsideActivity:
+      tags:
+          - { name: chill.export, alias: 'sum_aside_activity_concerned_persons_count' }
+
   ## Filters
   chill.aside_activity.export.date_filter:
     class: Chill\AsideActivityBundle\Export\Filter\ByDateFilter
@@ -70,3 +74,7 @@ services:
   Chill\AsideActivityBundle\Export\Aggregator\ByLocationAggregator:
       tags:
           - { name: chill.export_aggregator, alias: 'aside_activity_location_aggregator' }
+
+  Chill\AsideActivityBundle\Export\Aggregator\ByConcernedPersonsCountAggregator:
+      tags:
+          - { name: chill.export_aggregator, alias: 'aside_activity_concerned_persons_count_aggregator' }