diff --git a/README.md b/README.md
index b0b17cc..abb4569 100644
--- a/README.md
+++ b/README.md
@@ -87,8 +87,9 @@ This service will be converted into metadata you, as a human, can understand.
 You can apply additional service selection criteria that will be used to find the SOAP service you prefer. By default,
 
 * The selection criteria allows any SOAP service. You can disable e.g. the HTTP-based SOAP services.
-* no SOAP version is preferred. The first SOAP service the system detects, will be selected. But you can specify a specific soap version as well.
-
+* No SOAP version is preferred. The first SOAP service the system detects, will be selected. But you can specify a specific soap version as well.
+* You can specify a specific service name. If you don't, the first service will be selected.
+* You can specify a specific port name. If you don't, the first port will be selected.
 
 ### WSDL2
 
diff --git a/src/Locator/ServiceSelectionCriteria.php b/src/Locator/ServiceSelectionCriteria.php
index 28b01ee..e8d7d11 100644
--- a/src/Locator/ServiceSelectionCriteria.php
+++ b/src/Locator/ServiceSelectionCriteria.php
@@ -9,11 +9,15 @@ final class ServiceSelectionCriteria
 {
     public ?SoapVersion $preferredSoapVersion;
     public bool $allowHttpPorts;
+    public ?string $serviceName = null;
+    public ?string $portName = null;
 
     public function __construct()
     {
         $this->preferredSoapVersion = null;
         $this->allowHttpPorts = true;
+        $this->serviceName = null;
+        $this->portName = null;
     }
 
     public static function defaults(): self
@@ -36,4 +40,20 @@ public function withPreferredSoapVersion(?SoapVersion $preferredSoapVersion = nu
 
         return $new;
     }
+
+    public function withServiceName(?string $serviceName = null): self
+    {
+        $new = clone $this;
+        $new->serviceName = $serviceName;
+
+        return $new;
+    }
+
+    public function withPortName(?string $portName = null): self
+    {
+        $new = clone $this;
+        $new->portName = $portName;
+
+        return $new;
+    }
 }
diff --git a/src/Locator/Wsdl1SelectedServiceLocator.php b/src/Locator/Wsdl1SelectedServiceLocator.php
index 5cfafe2..41fb1e1 100644
--- a/src/Locator/Wsdl1SelectedServiceLocator.php
+++ b/src/Locator/Wsdl1SelectedServiceLocator.php
@@ -18,6 +18,10 @@ final class Wsdl1SelectedServiceLocator
     public function __invoke(Wsdl1 $wsdl, ServiceSelectionCriteria $criteria): Wsdl1SelectedService
     {
         foreach ($wsdl->services->items as $service) {
+            if ($criteria->serviceName !== null && $service->name !== $criteria->serviceName) {
+                continue;
+            }
+
             $port = $service->ports->lookupByLookupServiceCriteria($criteria);
             $binding = $port->andThen(
                 static fn (Port $port): Option => $wsdl->bindings->lookupByName($port->binding->localName)
diff --git a/src/Model/Definitions/Ports.php b/src/Model/Definitions/Ports.php
index ff2dc9e..ed39060 100644
--- a/src/Model/Definitions/Ports.php
+++ b/src/Model/Definitions/Ports.php
@@ -34,6 +34,7 @@ public function lookupByLookupServiceCriteria(ServiceSelectionCriteria $criteria
     {
         $preferredVersion = $criteria->preferredSoapVersion;
         $allowHttp = $criteria->allowHttpPorts;
+        $portName = $criteria->portName;
 
         foreach ($this->items as $port) {
             if (!$allowHttp && $port->address->type->isHttp()) {
@@ -44,6 +45,10 @@ public function lookupByLookupServiceCriteria(ServiceSelectionCriteria $criteria
                 continue;
             }
 
+            if ($portName !== null && $port->name !== $criteria->portName) {
+                continue;
+            }
+
             return some($port);
         }
 
diff --git a/tests/Unit/Locator/Wsdl1SelectedServiceLocatorTest.php b/tests/Unit/Locator/Wsdl1SelectedServiceLocatorTest.php
new file mode 100644
index 0000000..4625896
--- /dev/null
+++ b/tests/Unit/Locator/Wsdl1SelectedServiceLocatorTest.php
@@ -0,0 +1,126 @@
+<?php declare(strict_types=1);
+
+namespace Soap\WsdlReader\Test\Unit\Locator;
+
+use Closure;
+use PHPUnit\Framework\TestCase;
+use Soap\Wsdl\Loader\StreamWrapperLoader;
+use Soap\WsdlReader\Exception\ServiceException;
+use Soap\WsdlReader\Locator\ServiceSelectionCriteria;
+use Soap\WsdlReader\Locator\Wsdl1SelectedServiceLocator;
+use Soap\WsdlReader\Model\Definitions\SoapVersion;
+use Soap\WsdlReader\Model\Service\Wsdl1SelectedService;
+use Soap\WsdlReader\Wsdl1Reader;
+
+final class Wsdl1SelectedServiceLocatorTest extends TestCase
+{
+    /**
+     * @dataProvider provideServiceLocations
+     */
+    public function test_it_can_locate_service(
+        string $wsdl,
+        ServiceSelectionCriteria $criteria,
+        Closure $assert
+    ): void {
+
+        $locator = new Wsdl1SelectedServiceLocator();
+        $wsdl1 = (new Wsdl1Reader(new StreamWrapperLoader()))($wsdl);
+
+        $service = $locator($wsdl1, $criteria);
+        $assert($service);
+    }
+
+    /**
+     * @dataProvider provideNotLocatableServices
+     */
+    public function test_it_can_not_locate_service(
+        string $wsdl,
+        ServiceSelectionCriteria $criteria,
+    ): void {
+        $this->expectException(ServiceException::class);
+
+        $locator = new Wsdl1SelectedServiceLocator();
+        $wsdl1 = (new Wsdl1Reader(new StreamWrapperLoader()))($wsdl);
+
+        $locator($wsdl1, $criteria);
+    }
+
+    public static function provideServiceLocations(): iterable
+    {
+        $weatherWs = FIXTURE_DIR . '/wsdl/weather-ws.wsdl';
+
+        yield 'first-default' => [
+            $weatherWs,
+            ServiceSelectionCriteria::defaults(),
+            self::assertSoapWeather11Service(...),
+        ];
+
+        yield 'first-http' => [
+            $weatherWs,
+            ServiceSelectionCriteria::defaults()
+                ->withServiceName('Weather')
+                ->withPortName('WeatherHttpGet')
+                ->withAllowHttpPorts(),
+            self::assertSoapHttpGetService(...),
+        ];
+
+        yield 'first-soap12' => [
+            $weatherWs,
+            ServiceSelectionCriteria::defaults()
+                ->withPreferredSoapVersion(SoapVersion::SOAP_12),
+            self::assertSoapWeather12Service(...),
+        ];
+    }
+
+    public static function provideNotLocatableServices(): iterable
+    {
+        $weatherWs = FIXTURE_DIR . '/wsdl/weather-ws.wsdl';
+
+        yield 'invalid-service-name' => [
+            $weatherWs,
+            ServiceSelectionCriteria::defaults()->withServiceName('invalid'),
+        ];
+
+        yield 'invalid-port-name' => [
+            $weatherWs,
+            ServiceSelectionCriteria::defaults()->withPortName('invalid'),
+        ];
+
+    }
+
+    private static function assertSoapWeather11Service(Wsdl1SelectedService $service): void
+    {
+        static::assertSame('Weather', $service->service->name);
+        static::assertSame('WeatherSoap', $service->port->name);
+        static::assertSame('http://wsf.cdyne.com/WeatherWS/Weather.asmx', $service->port->address->location);
+        static::assertSame(true, $service->port->address->type->isSoap());
+        static::assertSame(SoapVersion::SOAP_11, $service->port->address->type->soapVersion());
+        static::assertSame('WeatherSoap', $service->binding->name);
+        static::assertSame('WeatherSoap', $service->portType->name);
+        static::assertSame('GetWeatherInformationSoapIn', $service->messages->items[0]->name);
+    }
+
+    private static function assertSoapWeather12Service(Wsdl1SelectedService $service): void
+    {
+        static::assertSame('Weather', $service->service->name);
+        static::assertSame('WeatherSoap12', $service->port->name);
+        static::assertSame('http://wsf.cdyne.com/WeatherWS/Weather.asmx', $service->port->address->location);
+        static::assertSame(true, $service->port->address->type->isSoap());
+        static::assertSame(SoapVersion::SOAP_12, $service->port->address->type->soapVersion());
+        static::assertSame('WeatherSoap12', $service->binding->name);
+        static::assertSame('WeatherSoap', $service->portType->name);
+        static::assertSame('GetWeatherInformationSoapIn', $service->messages->items[0]->name);
+    }
+
+    private static function assertSoapHttpGetService(Wsdl1SelectedService $service): void
+    {
+        static::assertSame('Weather', $service->service->name);
+        static::assertSame('WeatherHttpGet', $service->port->name);
+        static::assertSame('http://wsf.cdyne.com/WeatherWS/Weather.asmx', $service->port->address->location);
+        static::assertSame(false, $service->port->address->type->isSoap());
+        static::assertSame(null, $service->port->address->type->soapVersion());
+        static::assertSame('WeatherHttpGet', $service->binding->name);
+        static::assertSame('WeatherHttpGet', $service->portType->name);
+        static::assertSame('GetWeatherInformationSoapIn', $service->messages->items[0]->name);
+    }
+}