diff --git a/bavarian-rank-engine/includes/Providers/ProviderRegistry.php b/bavarian-rank-engine/includes/Providers/ProviderRegistry.php
new file mode 100644
index 0000000..a06d95c
--- /dev/null
+++ b/bavarian-rank-engine/includes/Providers/ProviderRegistry.php
@@ -0,0 +1,45 @@
+<?php
+namespace BavarianRankEngine;
+
+use BavarianRankEngine\Providers\ProviderInterface;
+
+class ProviderRegistry {
+	private static ?ProviderRegistry $instance = null;
+	private array $providers                   = array();
+
+	private function __construct() {}
+
+	public static function instance(): self {
+		if ( null === self::$instance ) {
+			self::$instance = new self();
+		}
+		return self::$instance;
+	}
+
+	public function register( ProviderInterface $provider ): void {
+		$this->providers[ $provider->getId() ] = $provider;
+	}
+
+	public function get( string $id ): ?ProviderInterface {
+		return $this->providers[ $id ] ?? null;
+	}
+
+	/** @return ProviderInterface[] */
+	public function all(): array {
+		return $this->providers;
+	}
+
+	/** Reset singleton — for use in tests only */
+	public static function reset(): void {
+		self::$instance = null;
+	}
+
+	/** Returns ['id' => 'Name'] for dropdowns */
+	public function getSelectOptions(): array {
+		$options = array();
+		foreach ( $this->providers as $id => $provider ) {
+			$options[ $id ] = $provider->getName();
+		}
+		return $options;
+	}
+}