diff --git a/README.md b/README.md
index 30ff400..d5ef4ff 100644
--- a/README.md
+++ b/README.md
@@ -77,12 +77,18 @@ However, you can configure how the encoding should be done by adding your own en
 Some examples:
 
 ```php
-use Soap\Encoding\Encoder\SimpleType\DateTimeTypeEncoder;use Soap\Encoding\EncoderRegistry;
+use Soap\Encoding\ClassMap\ClassMap;
+use Soap\Encoding\ClassMap\ClassMapCollection;
+use Soap\Encoding\Encoder\SimpleType\DateTimeTypeEncoder;
+use Soap\Encoding\EncoderRegistry;
 use Soap\Xml\Xmlns;
 
 EncoderRegistry::default()
     ->addClassMap('urn:namespace', 'TypeA', TypeA::class)
     ->addClassMap('urn:namespace', 'TypeB', TypeB::class)
+    ->addClassMapCollection(new ClassMapCollection(
+        new ClassMap('urn:namespace', 'TypeC', TypeC::class),
+    ))
     ->addBackedEnum('urn:namespace', 'EnumA', EnumA::class)
     ->addSimpleTypeConverter(Xmlns::xsd()->value(), 'dateTime', new DateTimeTypeEncoder('Y-m-d\TH:i:s'))
     ->addComplexTypeConverter('urn:namespace', 'TypeC', MySpecificTypeCEncoder::class);
diff --git a/src/ClassMap/ClassMap.php b/src/ClassMap/ClassMap.php
new file mode 100644
index 0000000..9a5a226
--- /dev/null
+++ b/src/ClassMap/ClassMap.php
@@ -0,0 +1,43 @@
+<?php
+declare(strict_types=1);
+
+namespace Soap\Encoding\ClassMap;
+
+final class ClassMap
+{
+    /**
+     * @param non-empty-string $xmlNamespace
+     * @param non-empty-string $wsdlType
+     * @param class-string $phpClassName
+     */
+    public function __construct(
+        private readonly string $xmlNamespace,
+        private readonly string $wsdlType,
+        private readonly string $phpClassName
+    ) {
+    }
+
+    /**
+     * @return class-string
+     */
+    public function getPhpClassName(): string
+    {
+        return $this->phpClassName;
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function getXmlType(): string
+    {
+        return $this->wsdlType;
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function getXmlNamespace(): string
+    {
+        return $this->xmlNamespace;
+    }
+}
diff --git a/src/ClassMap/ClassMapCollection.php b/src/ClassMap/ClassMapCollection.php
new file mode 100644
index 0000000..ed2c891
--- /dev/null
+++ b/src/ClassMap/ClassMapCollection.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace Soap\Encoding\ClassMap;
+
+use ArrayIterator;
+use IteratorAggregate;
+use Soap\Encoding\Formatter\QNameFormatter;
+
+/**
+ * @implements IteratorAggregate<string, ClassMap>
+ */
+final class ClassMapCollection implements IteratorAggregate
+{
+    /**
+     * @var array<string, ClassMap>
+     */
+    private array $classMaps = [];
+
+    public function __construct(ClassMap ... $classMaps)
+    {
+        foreach ($classMaps as $classMap) {
+            $this->set($classMap);
+        }
+    }
+
+    public function set(ClassMap $classMap): self
+    {
+        $qname = (new QNameFormatter())($classMap->getXmlNamespace(), $classMap->getXmlType());
+        $this->classMaps[$qname] = $classMap;
+
+        return $this;
+    }
+
+    /**
+     * @return ArrayIterator<string, ClassMap>
+     */
+    public function getIterator(): ArrayIterator
+    {
+        return new ArrayIterator($this->classMaps);
+    }
+}
diff --git a/src/EncoderRegistry.php b/src/EncoderRegistry.php
index 12fa48c..28d5382 100644
--- a/src/EncoderRegistry.php
+++ b/src/EncoderRegistry.php
@@ -4,6 +4,7 @@
 namespace Soap\Encoding;
 
 use Psl\Collection\MutableMap;
+use Soap\Encoding\ClassMap\ClassMapCollection;
 use Soap\Encoding\Encoder\Context;
 use Soap\Encoding\Encoder\ElementEncoder;
 use Soap\Encoding\Encoder\EncoderDetector;
@@ -176,6 +177,19 @@ public function addClassMap(string $namespace, string $name, string $class): sel
         return $this;
     }
 
+    public function addClassMapCollection(ClassMapCollection $classMapCollection): self
+    {
+        foreach ($classMapCollection as $classMap) {
+            $this->addClassMap(
+                $classMap->getXmlNamespace(),
+                $classMap->getXmlType(),
+                $classMap->getPhpClassName()
+            );
+        }
+
+        return $this;
+    }
+
     /**
      * @template T of \BackedEnum
      *
diff --git a/tests/Unit/ClassMap/ClassMapCollectionTest.php b/tests/Unit/ClassMap/ClassMapCollectionTest.php
new file mode 100644
index 0000000..7faaf7a
--- /dev/null
+++ b/tests/Unit/ClassMap/ClassMapCollectionTest.php
@@ -0,0 +1,39 @@
+<?php
+declare(strict_types=1);
+
+namespace Soap\Encoding\Test\Unit\ClassMap;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use Soap\Encoding\ClassMap\ClassMap;
+use Soap\Encoding\ClassMap\ClassMapCollection;
+
+#[CoversClass(ClassMapCollection::class)]
+final class ClassMapCollectionTest extends TestCase
+{
+    public function test_it_tests_class_maps(): void
+    {
+        $classMap = new ClassMapCollection(
+            $item1 = new ClassMap('uri:xx', 'wsdlType', 'phpType'),
+            new ClassMap('uri:xx', 'double', 'double'),
+            $item2 = new ClassMap('uri:xx', 'double', 'double'),
+        );
+
+        static::assertCount(2, $classMap);
+        static::assertSame([
+            '{uri:xx:wsdltype}' => $item1,
+            '{uri:xx:double}' => $item2,
+        ], iterator_to_array($classMap));
+    }
+
+    public function test_it_can_add_types(): void
+    {
+        $classMap = new ClassMapCollection();
+        $classMap->set($item1 = new ClassMap('uri:xx', 'wsdlType', 'phpType'));
+        $classMap->set($item2 = new ClassMap('uri:xx', 'wsdlType', 'phpType'));
+
+        static::assertSame([
+            '{uri:xx:wsdltype}' => $item2,
+        ], iterator_to_array($classMap));
+    }
+}
diff --git a/tests/Unit/ClassMap/ClassMapTest.php b/tests/Unit/ClassMap/ClassMapTest.php
new file mode 100644
index 0000000..ee48d67
--- /dev/null
+++ b/tests/Unit/ClassMap/ClassMapTest.php
@@ -0,0 +1,21 @@
+<?php
+declare(strict_types=1);
+
+namespace Soap\Encoding\Test\Unit\ClassMap;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use Soap\Encoding\ClassMap\ClassMap;
+
+#[CoversClass(ClassMap::class)]
+final class ClassMapTest extends TestCase
+{
+    public function test_it_tests_class_maps(): void
+    {
+        $classMap = new ClassMap('uri://xx', 'wsdlType', 'phpType');
+
+        static::assertSame('uri://xx', $classMap->getXmlNamespace());
+        static::assertSame('wsdlType', $classMap->getXmlType());
+        static::assertSame('phpType', $classMap->getPhpClassName());
+    }
+}