diff --git a/migrations/Version20260404091315.php b/migrations/Version20260404091315.php
new file mode 100644
index 0000000..e7b2e44
--- /dev/null
+++ b/migrations/Version20260404091315.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260404091315 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE customer_contact (id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL, first_name VARCHAR(255) NOT NULL, last_name VARCHAR(255) NOT NULL, email VARCHAR(255) DEFAULT NULL, phone VARCHAR(20) DEFAULT NULL, role VARCHAR(100) DEFAULT NULL, is_billing_email BOOLEAN NOT NULL, created_at TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, updated_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL, customer_id INT NOT NULL, PRIMARY KEY (id))');
+        $this->addSql('CREATE INDEX IDX_50BF42869395C3F3 ON customer_contact (customer_id)');
+        $this->addSql('ALTER TABLE customer_contact ADD CONSTRAINT FK_50BF42869395C3F3 FOREIGN KEY (customer_id) REFERENCES customer (id) ON DELETE CASCADE NOT DEFERRABLE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE customer_contact DROP CONSTRAINT FK_50BF42869395C3F3');
+        $this->addSql('DROP TABLE customer_contact');
+    }
+}
diff --git a/src/Entity/CustomerContact.php b/src/Entity/CustomerContact.php
new file mode 100644
index 0000000..627c770
--- /dev/null
+++ b/src/Entity/CustomerContact.php
@@ -0,0 +1,154 @@
+<?php
+
+namespace App\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity]
+class CustomerContact
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column]
+    private ?int $id = null;
+
+    #[ORM\ManyToOne(targetEntity: Customer::class)]
+    #[ORM\JoinColumn(nullable: false, onDelete: 'CASCADE')]
+    private Customer $customer;
+
+    #[ORM\Column(length: 255)]
+    private string $firstName;
+
+    #[ORM\Column(length: 255)]
+    private string $lastName;
+
+    #[ORM\Column(length: 255, nullable: true)]
+    private ?string $email = null;
+
+    #[ORM\Column(length: 20, nullable: true)]
+    private ?string $phone = null;
+
+    #[ORM\Column(length: 100, nullable: true)]
+    private ?string $role = null;
+
+    #[ORM\Column]
+    private bool $isBillingEmail = false;
+
+    #[ORM\Column]
+    private \DateTimeImmutable $createdAt;
+
+    #[ORM\Column(nullable: true)]
+    private ?\DateTimeImmutable $updatedAt = null;
+
+    public function __construct(Customer $customer, string $firstName, string $lastName)
+    {
+        $this->customer = $customer;
+        $this->firstName = $firstName;
+        $this->lastName = $lastName;
+        $this->createdAt = new \DateTimeImmutable();
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getCustomer(): Customer
+    {
+        return $this->customer;
+    }
+
+    public function getFirstName(): string
+    {
+        return $this->firstName;
+    }
+
+    public function setFirstName(string $firstName): static
+    {
+        $this->firstName = $firstName;
+
+        return $this;
+    }
+
+    public function getLastName(): string
+    {
+        return $this->lastName;
+    }
+
+    public function setLastName(string $lastName): static
+    {
+        $this->lastName = $lastName;
+
+        return $this;
+    }
+
+    public function getFullName(): string
+    {
+        return $this->firstName.' '.$this->lastName;
+    }
+
+    public function getEmail(): ?string
+    {
+        return $this->email;
+    }
+
+    public function setEmail(?string $email): static
+    {
+        $this->email = $email;
+
+        return $this;
+    }
+
+    public function getPhone(): ?string
+    {
+        return $this->phone;
+    }
+
+    public function setPhone(?string $phone): static
+    {
+        $this->phone = $phone;
+
+        return $this;
+    }
+
+    public function getRole(): ?string
+    {
+        return $this->role;
+    }
+
+    public function setRole(?string $role): static
+    {
+        $this->role = $role;
+
+        return $this;
+    }
+
+    public function isBillingEmail(): bool
+    {
+        return $this->isBillingEmail;
+    }
+
+    public function setIsBillingEmail(bool $isBillingEmail): static
+    {
+        $this->isBillingEmail = $isBillingEmail;
+
+        return $this;
+    }
+
+    public function getCreatedAt(): \DateTimeImmutable
+    {
+        return $this->createdAt;
+    }
+
+    public function getUpdatedAt(): ?\DateTimeImmutable
+    {
+        return $this->updatedAt;
+    }
+
+    public function setUpdatedAt(?\DateTimeImmutable $updatedAt): static
+    {
+        $this->updatedAt = $updatedAt;
+
+        return $this;
+    }
+}
diff --git a/tests/Entity/CustomerContactTest.php b/tests/Entity/CustomerContactTest.php
new file mode 100644
index 0000000..0c5e95d
--- /dev/null
+++ b/tests/Entity/CustomerContactTest.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Tests\Entity;
+
+use App\Entity\Customer;
+use App\Entity\CustomerContact;
+use App\Entity\User;
+use PHPUnit\Framework\TestCase;
+
+class CustomerContactTest extends TestCase
+{
+    private function createCustomer(): Customer
+    {
+        $user = new User();
+        $user->setEmail('c@t.com');
+        $user->setFirstName('C');
+        $user->setLastName('T');
+        $user->setPassword('h');
+
+        return new Customer($user);
+    }
+
+    public function testConstructor(): void
+    {
+        $customer = $this->createCustomer();
+        $contact = new CustomerContact($customer, 'Jean', 'Dupont');
+
+        $this->assertNull($contact->getId());
+        $this->assertSame($customer, $contact->getCustomer());
+        $this->assertSame('Jean', $contact->getFirstName());
+        $this->assertSame('Dupont', $contact->getLastName());
+        $this->assertSame('Jean Dupont', $contact->getFullName());
+        $this->assertNull($contact->getEmail());
+        $this->assertNull($contact->getPhone());
+        $this->assertNull($contact->getRole());
+        $this->assertFalse($contact->isBillingEmail());
+        $this->assertInstanceOf(\DateTimeImmutable::class, $contact->getCreatedAt());
+        $this->assertNull($contact->getUpdatedAt());
+    }
+
+    public function testSetters(): void
+    {
+        $contact = new CustomerContact($this->createCustomer(), 'A', 'B');
+
+        $contact->setFirstName('Marie');
+        $this->assertSame('Marie', $contact->getFirstName());
+
+        $contact->setLastName('Martin');
+        $this->assertSame('Martin', $contact->getLastName());
+        $this->assertSame('Marie Martin', $contact->getFullName());
+
+        $contact->setEmail('marie@entreprise.fr');
+        $this->assertSame('marie@entreprise.fr', $contact->getEmail());
+
+        $contact->setPhone('0612345678');
+        $this->assertSame('0612345678', $contact->getPhone());
+
+        $contact->setRole('Comptable');
+        $this->assertSame('Comptable', $contact->getRole());
+
+        $contact->setIsBillingEmail(true);
+        $this->assertTrue($contact->isBillingEmail());
+
+        $now = new \DateTimeImmutable();
+        $contact->setUpdatedAt($now);
+        $this->assertSame($now, $contact->getUpdatedAt());
+    }
+}