diff --git a/Annotated/CustomTypeResolvers.php b/Annotated/CustomTypeResolvers.php
new file mode 100644
index 0000000..92ec2b1
--- /dev/null
+++ b/Annotated/CustomTypeResolvers.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Typhoon\Reflection\Annotated;
+
+use Typhoon\Type\Type;
+
+/**
+ * @api
+ */
+final class CustomTypeResolvers implements CustomTypeResolver
+{
+    /**
+     * @param iterable<CustomTypeResolver> $resolvers
+     */
+    public function __construct(
+        private readonly iterable $resolvers,
+    ) {}
+
+    public function resolveCustomType(string $unresolvedName, array $typeArguments, TypeContext $context): ?Type
+    {
+        foreach ($this->resolvers as $resolver) {
+            $type = $resolver->resolveCustomType($unresolvedName, $typeArguments, $context);
+
+            if ($type !== null) {
+                return $type;
+            }
+        }
+
+        return null;
+    }
+}
diff --git a/TyphoonReflector.php b/TyphoonReflector.php
index ce5bb1d..ce4d291 100644
--- a/TyphoonReflector.php
+++ b/TyphoonReflector.php
@@ -20,7 +20,7 @@
 use Typhoon\DeclarationId\TemplateId;
 use Typhoon\PhpStormReflectionStubs\PhpStormStubsLocator;
 use Typhoon\Reflection\Annotated\CustomTypeResolver;
-use Typhoon\Reflection\Annotated\NullCustomTypeResolver;
+use Typhoon\Reflection\Annotated\CustomTypeResolvers;
 use Typhoon\Reflection\Exception\DeclarationNotFound;
 use Typhoon\Reflection\Internal\Cache\Cache;
 use Typhoon\Reflection\Internal\Cache\InMemoryPsr16Cache;
@@ -70,14 +70,15 @@ final class TyphoonReflector
 
     /**
      * @param ?iterable<ConstantLocator|NamedFunctionLocator|NamedClassLocator|AnonymousLocator> $locators
+     * @param iterable<CustomTypeResolver> $customTypeResolvers
      */
     public static function build(
         ?iterable $locators = null,
         ?CacheInterface $cache = null,
-        CustomTypeResolver $customTypeResolver = new NullCustomTypeResolver(),
+        iterable $customTypeResolvers = [],
         ?Parser $phpParser = null,
     ): self {
-        $phpDocReflector = new PhpDocReflector($customTypeResolver);
+        $phpDocReflector = new PhpDocReflector(new CustomTypeResolvers($customTypeResolvers));
 
         return new self(
             codeReflector: new CodeReflector(