diff --git a/meemoo/helpers.py b/meemoo/helpers.py
index 9e518ae..607eec0 100644
--- a/meemoo/helpers.py
+++ b/meemoo/helpers.py
@@ -13,7 +13,6 @@
 from io import BytesIO
 from ftplib import FTP as BuiltinFTP
 from urllib.parse import urlparse
-import re
 
 # Third-party imports
 from viaa.configuration import ConfigParser
@@ -236,5 +235,26 @@ def put(self, content_bytes, destination_path, destination_filename):
                 raise e
 
 
+def make_url(base_url, *path):
+    """Creates a valid url.
+
+    Args:
+        base_url (string): The base url.
+        *path (variable length argument list, optional):
+            The path to be appended to the base url.
+
+    Returns:
+        url (string): The created url.
+
+    Raises a TypeError if base_url is None.
+    """
+
+    if base_url is None:
+        raise TypeError('base_url is required')
+    url = base_url.rstrip('/')  # Remove optional trailing slash
+    for item in path:
+        url = f"{url}/{item}"
+    return url
+
 # vim modeline
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/meemoo/services.py b/meemoo/services.py
index 29dd597..4f15f50 100644
--- a/meemoo/services.py
+++ b/meemoo/services.py
@@ -23,6 +23,7 @@
 from viaa.observability import logging
 
 # Local imports
+from meemoo.helpers import make_url
 
 # Get logger
 config = ConfigParser()
@@ -103,7 +104,8 @@ def get_organisation(self, or_id):
         # Make sure the OR is uppercase. Organisation api needs it.
         or_id = or_id[:2].upper() + or_id[2:]
 
-        response = requests.get(f"{self.host}org/{or_id}")
+        url = make_url(self.host, 'org', or_id)
+        response = requests.get(url)
         organisation = response.json()["data"]
         return organisation
 
diff --git a/tests/test_helpers.py b/tests/test_helpers.py
index 1650e4d..b02e63f 100644
--- a/tests/test_helpers.py
+++ b/tests/test_helpers.py
@@ -26,7 +26,8 @@
     normalize_or_id,
     is_event_valid,
     InvalidEventException,
-    get_destination_for_cp
+    get_destination_for_cp,
+    make_url
 )
 from tests.resources import (
     S3_MOCK_ESSENCE_EVENT,
@@ -169,6 +170,7 @@ def test_is_event_valid_extra_fields():
     # Assert
     assert event_valid is None
 
+
 @pytest.mark.parametrize(
     "environment, cp, file_type, expected_destination",
     [
@@ -189,4 +191,57 @@ def test_file_destination(environment, cp, file_type, expected_destination):
     assert destination == expected_destination
 
 
+def test_make_url_with_trailing_slash():
+    # Arrange
+    base_url = 'https://example-url/'
+    # Act
+    url = make_url(base_url, 'org', 'test-org-id')
+    # Assert
+    assert url == 'https://example-url/org/test-org-id'
+
+
+def test_make_url_multiple_trailing_slashes():
+    # Arrange
+    base_url = 'https://example-url////'
+    # Act
+    url = make_url(base_url, 'org', 'test-org-id')
+    # Assert
+    assert url == 'https://example-url/org/test-org-id'
+
+
+def test_make_url_missing_trailing_slash():
+    # Arrange
+    base_url = 'https://example-url'
+    # Act
+    url = make_url(base_url, 'org', 'test-org-id')
+    # Assert
+    assert url == 'https://example-url/org/test-org-id'
+
+
+def test_make_url_long_path():
+    # Arrange
+    base_url = 'https://example-url'
+    # Act
+    url = make_url(base_url, 'api', 'deeply', 'nested', 'test', 'path')
+    # Assert
+    assert url == 'https://example-url/api/deeply/nested/test/path'
+
+
+def test_make_url_none_base_url():
+    # Arrange
+    base_url = None
+    # Act and assert
+    with pytest.raises(TypeError) as excinfo:
+        make_url(base_url, 'org', 'test-org-id')
+    assert 'base_url is required' in str(excinfo.value)
+
+
+def test_make_url_no_path():
+    # Arrange
+    base_url = 'https://example-url'
+    # Act
+    url = make_url(base_url)
+    # Assert
+    assert url == 'https://example-url'
+
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4 smartindent