diff --git a/prowler/providers/supabase/services/organizations/__init__.py b/prowler/providers/supabase/services/organizations/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/prowler/providers/supabase/services/organizations/organizations_service.py b/prowler/providers/supabase/services/organizations/organizations_service.py
new file mode 100644
index 0000000000..af50cc0bd0
--- /dev/null
+++ b/prowler/providers/supabase/services/organizations/organizations_service.py
@@ -0,0 +1,37 @@
+from pydantic import BaseModel
+
+from prowler.providers.supabase.lib.service.service import SupabaseService
+
+
+class Organizations(SupabaseService):
+    """Retrieve Supabase organization members."""
+
+    def __init__(self, provider):
+        super().__init__("Organizations", provider)
+        self.members: dict[str, SupabaseOrganizationMember] = {}
+        self._fetch_members()
+
+    def _fetch_members(self) -> None:
+        """Collect members from every organization in the authenticated scope."""
+        for organization in self.provider.identity.organizations:
+            members = self._get(f"/v1/organizations/{organization.slug}/members")
+            for member in members:
+                user_id = member["user_id"]
+                resource = SupabaseOrganizationMember(
+                    id=user_id,
+                    name=f"member {user_id}",
+                    organization_slug=organization.slug,
+                    organization_name=organization.name,
+                    mfa_enabled=member["mfa_enabled"],
+                )
+                self.members[f"{organization.slug}:{user_id}"] = resource
+
+
+class SupabaseOrganizationMember(BaseModel):
+    """Security-relevant Supabase organization member attributes."""
+
+    id: str
+    name: str
+    organization_slug: str
+    organization_name: str
+    mfa_enabled: bool
diff --git a/tests/providers/supabase/services/organizations/supabase_organizations_service_test.py b/tests/providers/supabase/services/organizations/supabase_organizations_service_test.py
new file mode 100644
index 0000000000..f4d5491cdd
--- /dev/null
+++ b/tests/providers/supabase/services/organizations/supabase_organizations_service_test.py
@@ -0,0 +1,147 @@
+from unittest import mock
+
+import pytest
+
+from prowler.providers.supabase.exceptions.exceptions import (
+    SupabaseAuthenticationError,
+    SupabaseInsufficientPermissionsError,
+    SupabaseRateLimitError,
+)
+from prowler.providers.supabase.lib.service.service import _rate_limit_delay
+from prowler.providers.supabase.services.organizations import (
+    organizations_service,
+)
+from tests.providers.supabase.supabase_fixtures import (
+    ORGANIZATION_SLUG,
+    USER_ID,
+    set_mocked_supabase_provider,
+)
+
+
+class TestOrganizationsService:
+    def test_fetches_members_without_storing_email(self):
+        provider = set_mocked_supabase_provider()
+        response = mock.MagicMock(status_code=200)
+        response.json.return_value = [
+            {
+                "user_id": USER_ID,
+                "user_name": "Test User",
+                "email": "private@example.com",
+                "role_name": "Owner",
+                "mfa_enabled": False,
+            }
+        ]
+        provider.session.http_session.get.return_value = response
+
+        service = organizations_service.Organizations(provider)
+
+        member = service.members[f"{ORGANIZATION_SLUG}:{USER_ID}"]
+        assert member.id == USER_ID
+        assert member.name == f"member {USER_ID}"
+        assert member.organization_slug == ORGANIZATION_SLUG
+        assert member.mfa_enabled is False
+        assert "email" not in member.model_dump()
+        assert "private@example.com" not in repr(member)
+
+    @pytest.mark.parametrize(
+        ("status_code", "exception"),
+        [
+            (401, SupabaseAuthenticationError),
+            (403, SupabaseInsufficientPermissionsError),
+            (429, SupabaseRateLimitError),
+        ],
+    )
+    def test_api_errors_abort_collection_instead_of_producing_empty_results(
+        self, status_code, exception
+    ):
+        provider = set_mocked_supabase_provider()
+        provider.session.http_session.get.return_value = mock.MagicMock(
+            status_code=status_code,
+            headers={"X-RateLimit-Reset": "0"},
+        )
+
+        with pytest.raises(exception):
+            organizations_service.Organizations(provider)
+
+    def test_rate_limit_retries_using_reset_header(self):
+        provider = set_mocked_supabase_provider()
+        provider.audit_config = {"max_retries": 1}
+        rate_limited = mock.MagicMock(
+            status_code=429,
+            headers={"X-RateLimit-Reset": "2"},
+        )
+        success = mock.MagicMock(status_code=200)
+        success.json.return_value = []
+        provider.session.http_session.get.side_effect = [rate_limited, success]
+
+        with mock.patch(
+            "prowler.providers.supabase.lib.service.service.time.sleep"
+        ) as sleep:
+            service = organizations_service.Organizations(provider)
+
+        assert service.members == {}
+        sleep.assert_called_once_with(2)
+
+
+class TestRateLimitDelay:
+    def test_relative_reset_seconds(self):
+        assert _rate_limit_delay({"X-RateLimit-Reset": "2"}) == 2
+
+    def test_retry_after_delta_seconds(self):
+        assert _rate_limit_delay({"Retry-After": "3"}) == 3
+
+    @mock.patch(
+        "prowler.providers.supabase.lib.service.service.time.time",
+        return_value=1_700_000_000,
+    )
+    def test_absolute_reset_timestamp(self, _):
+        assert _rate_limit_delay({"X-RateLimit-Reset": "1700000005"}) == 5
+
+    @mock.patch(
+        "prowler.providers.supabase.lib.service.service.time.time",
+        return_value=1_445_412_475,
+    )
+    def test_retry_after_http_date(self, _):
+        headers = {"Retry-After": "Wed, 21 Oct 2015 07:28:00 GMT"}
+
+        assert _rate_limit_delay(headers) == 5
+
+    @pytest.mark.parametrize(
+        "malformed_value",
+        ["not-a-timestamp", "inf", "nan"],
+    )
+    def test_malformed_headers_use_fallback(self, malformed_value):
+        headers = {
+            "X-RateLimit-Reset": malformed_value,
+            "Retry-After": malformed_value,
+        }
+
+        assert _rate_limit_delay(headers) == 1
+
+    def test_malformed_reset_uses_retry_after(self):
+        headers = {
+            "X-RateLimit-Reset": "not-a-timestamp",
+            "Retry-After": "4",
+        }
+
+        assert _rate_limit_delay(headers) == 4
+
+    @pytest.mark.parametrize(
+        "headers",
+        [
+            {"X-RateLimit-Reset": "-5"},
+            {"Retry-After": "-5"},
+        ],
+    )
+    def test_negative_delay_is_clamped_to_zero(self, headers):
+        assert _rate_limit_delay(headers) == 0
+
+    @mock.patch(
+        "prowler.providers.supabase.lib.service.service.time.time",
+        return_value=1_700_000_000,
+    )
+    def test_past_absolute_reset_is_clamped_to_zero(self, _):
+        assert _rate_limit_delay({"X-RateLimit-Reset": "1699999995"}) == 0
+
+    def test_relative_delay_is_bounded(self):
+        assert _rate_limit_delay({"X-RateLimit-Reset": "7200"}) == 3600