diff --git a/github/remove_external_collaborators.py b/github/remove_external_collaborators.py
new file mode 100755
index 0000000..4d9ef82
--- /dev/null
+++ b/github/remove_external_collaborators.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+
+import os
+import re
+from github import Github
+from optparse import OptionParser
+
+HELP_DESCRIPTION='Utility for listing external collaboraeors in GitHub repos.'
+HELP_EXAMPLE='Example: ./external_collaborators.py -o "waku-org"'
+
+def parse_opts():
+    parser = OptionParser(description=HELP_DESCRIPTION, epilog=HELP_EXAMPLE)
+    parser.add_option('-o', '--org', default='status-im',
+                      help='GitHub organization to search for private repos.')
+    parser.add_option('-r', '--regex', default=None,
+                      help='Regex to limit which collaborators get removed.')
+    parser.add_option('-t', '--token', default=os.environ['GH_TOKEN'],
+                      help='GitHub API token to query for repos.')
+    parser.add_option('-p', '--private', default=False, action='store_true',
+                      help='Check only private repositories.')
+    parser.add_option('-d', '--dry-run', default=False, action='store_true',
+                      help='Dry run. Only listing repos.')
+
+    return parser.parse_args()
+
+def main():
+    (opts, args) = parse_opts()
+
+    gh = Github(opts.token)
+
+    org = gh.get_organization(opts.org)
+
+    for repo in org.get_repos():
+        skip = any([
+          repo.fork,
+          repo.archived,
+          repo.name in ['process-models', 'infra-spiff-workflow'],
+          '-ghsa-' in repo.name,
+        ])
+        if skip:
+            continue
+        if opts.private and not repo.private:
+            continue
+
+        for collaborator in repo.get_collaborators('outside'):
+            if opts.regex and not re.search(opts.regex, collaborator.login):
+                continue
+
+            print('%30s - %s' % (repo.name, collaborator.login))
+
+            if opts.dry_run:
+                continue
+
+            repo.remove_from_collaborators(collaborator)
+
+if __name__ == '__main__':
+    main()