diff --git a/website/src/components/Group/GroupForm.tsx b/website/src/components/Group/GroupForm.tsx
index f724b0a34c..81bd5d43de 100644
--- a/website/src/components/Group/GroupForm.tsx
+++ b/website/src/components/Group/GroupForm.tsx
@@ -88,7 +88,7 @@ export const GroupForm: FC<GroupFormProps> = ({ title, buttonText, defaultGroupD
 
                     <div className='mt-5 grid grid-cols-1 gap-x-6 gap-y-4 sm:grid-cols-6'>
                         <GroupNameInput defaultValue={defaultGroupData?.groupName} />
-                        <EmailContactInput defaultValue={defaultGroupData?.contactEmail} />
+                        <EmailContactInput defaultValue={defaultGroupData?.contactEmail ?? ''} />
                         <InstitutionNameInput defaultValue={defaultGroupData?.institution} />
                         <AddressLineOneInput defaultValue={defaultGroupData?.address.line1} />
                         <AddressLineTwoInput defaultValue={defaultGroupData?.address.line2} />
diff --git a/website/src/components/User/GroupPage.spec.tsx b/website/src/components/User/GroupPage.spec.tsx
new file mode 100644
index 0000000000..e1aa77d424
--- /dev/null
+++ b/website/src/components/User/GroupPage.spec.tsx
@@ -0,0 +1,75 @@
+import { render, screen } from '@testing-library/react';
+import { describe, expect, test } from 'vitest';
+
+import { GroupPage } from './GroupPage';
+import { testAccessToken, testConfig, testDatabaseName, testGroups, testUser } from '../../../vitest.setup';
+
+const DUMMY_GROUP_DETAILS = {
+    group: testGroups[0],
+    users: [testUser],
+};
+
+describe('GroupPage', () => {
+    test('test authenticated can edit view', () => {
+        render(
+            <GroupPage
+                prefetchedGroupDetails={DUMMY_GROUP_DETAILS}
+                clientConfig={testConfig.public}
+                accessToken={testAccessToken}
+                username={testUser.name}
+                userGroups={testGroups}
+                organisms={[]}
+                databaseName={testDatabaseName}
+                loginUrl=''
+            />,
+        );
+
+        const targetString = `to ${testDatabaseName} see full group details`;
+        expect(screen.queryByText(targetString)).toBeNull();
+        expect(screen.getByText(testGroups[0].contactEmail!)).toBeVisible();
+        expect(screen.getByRole('heading', { name: `Sequences available in ${testDatabaseName}` })).toBeVisible();
+        expect(screen.getByRole('heading', { name: 'Users' })).toBeVisible();
+    });
+
+    test('test authenticated cannot edit view', () => {
+        render(
+            <GroupPage
+                prefetchedGroupDetails={DUMMY_GROUP_DETAILS}
+                clientConfig={testConfig.public}
+                accessToken={testAccessToken}
+                username={testUser.name}
+                userGroups={[]}
+                organisms={[]}
+                databaseName={testDatabaseName}
+                loginUrl=''
+            />,
+        );
+
+        const targetString = `to ${testDatabaseName} see full group details`;
+        expect(screen.queryByText(targetString)).toBeNull();
+        expect(screen.getByText(testGroups[0].contactEmail!)).toBeVisible();
+        expect(screen.getByRole('heading', { name: `Sequences available in ${testDatabaseName}` })).toBeVisible();
+        expect(screen.queryByRole('heading', { name: /users/i })).toBeNull();
+    });
+
+    test('test unauthenticated view', () => {
+        render(
+            <GroupPage
+                prefetchedGroupDetails={DUMMY_GROUP_DETAILS}
+                clientConfig={testConfig.public}
+                accessToken=''
+                username=''
+                userGroups={[]}
+                organisms={[]}
+                databaseName={testDatabaseName}
+                loginUrl=''
+            />,
+        );
+
+        const targetString = `to ${testDatabaseName} to see contact details for the group.`;
+        expect(screen.queryByText(targetString)).toBeVisible();
+        expect(screen.queryByText(testGroups[0].contactEmail!)).toBeNull();
+        expect(screen.getByRole('heading', { name: `Sequences available in ${testDatabaseName}` })).toBeVisible();
+        expect(screen.queryByRole('heading', { name: /users/i })).toBeNull();
+    });
+});
diff --git a/website/src/components/User/GroupPage.tsx b/website/src/components/User/GroupPage.tsx
index 628e54f6bb..545e70c92d 100644
--- a/website/src/components/User/GroupPage.tsx
+++ b/website/src/components/User/GroupPage.tsx
@@ -21,12 +21,13 @@ import IwwaArrowDown from '~icons/iwwa/arrow-down';
 type GroupPageProps = {
     prefetchedGroupDetails: GroupDetails;
     clientConfig: ClientConfig;
-    accessToken: string;
+    accessToken: string | undefined;
     username: string;
     userGroups: Group[];
     organisms: Organism[];
     databaseName: string;
     continueSubmissionIntent?: ContinueSubmissionIntent;
+    loginUrl: string;
 };
 
 const InnerGroupPage: FC<GroupPageProps> = ({
@@ -38,6 +39,7 @@ const InnerGroupPage: FC<GroupPageProps> = ({
     organisms,
     databaseName,
     continueSubmissionIntent,
+    loginUrl,
 }) => {
     const groupName = prefetchedGroupDetails.group.groupName;
     const groupId = prefetchedGroupDetails.group.groupId;
@@ -58,7 +60,7 @@ const InnerGroupPage: FC<GroupPageProps> = ({
         setNewUserName('');
     };
 
-    const userIsGroupMember = groupDetails.data?.users.some((user) => user.name === username) ?? false;
+    const userIsGroupMember = groupDetails.data?.users?.some((user) => user.name === username) ?? false;
     const userHasEditPrivileges = userGroups.some((group) => group.groupId === prefetchedGroupDetails.group.groupId);
 
     const { data: sequenceCounts, isLoading: sequenceCountsLoading } = useQuery({
@@ -152,7 +154,7 @@ const InnerGroupPage: FC<GroupPageProps> = ({
                             <Button
                                 className='object-right p-2 loculusColor text-white rounded px-4'
                                 onClick={() => {
-                                    const isLastMember = (groupDetails.data?.users.length ?? 0) <= 1;
+                                    const isLastMember = (groupDetails.data?.users?.length ?? 0) <= 1;
                                     const lastMemberWarning =
                                         'You are the last user in this group. Leaving will leave the group without any members, meaning that nobody is able to add future members. ';
                                     const dialogText = `${isLastMember ? lastMemberWarning : ''}Are you sure you want to leave the ${groupName} group?`;
@@ -172,9 +174,8 @@ const InnerGroupPage: FC<GroupPageProps> = ({
                     )}
                 </div>
             ) : (
-                <h1 className='flex flex-row gap-4 title flex-grow'>
-                    <label className='block title'>Group:</label>
-                    {groupName}
+                <h1 className='flex flex-col title flex-grow'>
+                    <label className='block title'>Group: {groupName}</label>
                 </h1>
             )}
 
@@ -183,12 +184,24 @@ const InnerGroupPage: FC<GroupPageProps> = ({
                     <tbody>
                         <TableRow label='Group ID'>{groupDetails.data?.group.groupId}</TableRow>
                         <TableRow label='Institution'>{groupDetails.data?.group.institution}</TableRow>
-                        <TableRow label='Contact email'>{groupDetails.data?.group.contactEmail}</TableRow>
+                        {accessToken && (
+                            <TableRow label='Contact email'>{groupDetails.data?.group.contactEmail}</TableRow>
+                        )}
                         <TableRow label='Address'>
                             <PostalAddress address={groupDetails.data?.group.address} />
                         </TableRow>
                     </tbody>
                 </table>
+                <div className='w-full mt-2 text-center'>
+                    {!accessToken && (
+                        <span className='text-sm italic'>
+                            <a href={loginUrl} className='underline cursor-pointer'>
+                                Log in
+                            </a>{' '}
+                            to {databaseName} to see contact details for the group.
+                        </span>
+                    )}
+                </div>
             </div>
 
             <div className=' max-w-2xl mx-auto px-10 py-4 bg-gray-100 rounded-md my-4'>
@@ -233,7 +246,7 @@ const InnerGroupPage: FC<GroupPageProps> = ({
                     </form>
                     <div className='flex-1 overflow-y-auto'>
                         <ul>
-                            {groupDetails.data?.users.map((user) => (
+                            {groupDetails.data?.users?.map((user) => (
                                 <li key={user.name} className='flex items-center gap-6 bg-gray-100 p-2 mb-2 rounded'>
                                     <span className='text-lg'>{user.name}</span>
                                     {user.name !== username && (
diff --git a/website/src/hooks/useGroupOperations.ts b/website/src/hooks/useGroupOperations.ts
index d19c1488b7..3a2d7f9fd7 100644
--- a/website/src/hooks/useGroupOperations.ts
+++ b/website/src/hooks/useGroupOperations.ts
@@ -10,7 +10,7 @@ import { stringifyMaybeAxiosError } from '../utils/stringifyMaybeAxiosError.ts';
 
 type UseGroupOperationsProps = {
     clientConfig: ClientConfig;
-    accessToken: string;
+    accessToken: string | undefined;
     setErrorMessage: (message?: string) => void;
 };
 
@@ -162,7 +162,7 @@ function callEditGroup(accessToken: string, zodios: ZodiosInstance<typeof groupM
 }
 
 function callRemoveFromGroup(
-    accessToken: string,
+    accessToken: string | undefined,
     openErrorFeedback: (message: string | undefined) => void,
     zodios: ZodiosInstance<typeof groupManagementApi>,
     refetchGroups: () => Promise<unknown>,
@@ -185,7 +185,7 @@ function callRemoveFromGroup(
 }
 
 function callAddToGroup(
-    accessToken: string,
+    accessToken: string | undefined,
     openErrorFeedback: (message: string | undefined) => void,
     zodios: ZodiosInstance<typeof groupManagementApi>,
     refetchGroups: () => Promise<unknown>,
diff --git a/website/src/pages/group/[groupId]/edit.astro b/website/src/pages/group/[groupId]/edit.astro
index 3658e716b0..1f93a1c95d 100644
--- a/website/src/pages/group/[groupId]/edit.astro
+++ b/website/src/pages/group/[groupId]/edit.astro
@@ -19,7 +19,7 @@ if (isNaN(groupId)) {
 }
 
 const groupManagementClient = GroupManagementClient.create();
-const groupDetailsResult = await groupManagementClient.getGroupDetails(accessToken, groupId);
+const groupDetailsResult = await groupManagementClient.getGroupDetails(groupId, accessToken);
 ---
 
 <BaseLayout title='Edit group' activeTopNavigationItem='account'>
diff --git a/website/src/pages/group/[groupId]/index.astro b/website/src/pages/group/[groupId]/index.astro
index 187c08b34f..37124daca3 100644
--- a/website/src/pages/group/[groupId]/index.astro
+++ b/website/src/pages/group/[groupId]/index.astro
@@ -1,20 +1,21 @@
 ---
 import { GroupPage } from '../../../components/User/GroupPage';
 import ErrorBox from '../../../components/common/ErrorBox.tsx';
-import NeedToLogin from '../../../components/common/NeedToLogin.astro';
 import { getConfiguredOrganisms, getRuntimeConfig, getWebsiteConfig } from '../../../config';
 import BaseLayout from '../../../layouts/BaseLayout.astro';
 import type { ContinueSubmissionIntent } from '../../../routes/routes';
 import { GroupManagementClient } from '../../../services/groupManagementClient';
 import { getAccessToken } from '../../../utils/getAccessToken';
+import { getAuthUrl } from '../../../utils/getAuthUrl';
 
-const session = Astro.locals.session!;
-const accessToken = getAccessToken(session)!;
-const username = session.user?.username ?? '';
+const session = Astro.locals.session;
+const accessToken = getAccessToken(session);
+const username = session?.user?.username ?? '';
 const groupId = parseInt(Astro.params.groupId!, 10);
 const clientConfig = getRuntimeConfig().public;
 const organisms = getConfiguredOrganisms();
 const databaseName = getWebsiteConfig().name;
+const loginUrl = await getAuthUrl(Astro.url.toString());
 
 const continueSubmissionOrganism = Astro.url.searchParams.get('continueSubmissionOrganism');
 
@@ -28,7 +29,7 @@ if (isNaN(groupId)) {
 }
 
 const groupManagementClient = GroupManagementClient.create();
-const groupDetailsResult = await groupManagementClient.getGroupDetails(accessToken, groupId);
+const groupDetailsResult = await groupManagementClient.getGroupDetails(groupId, accessToken);
 const userGroupsResponse = await groupManagementClient.getGroupsOfUser(accessToken);
 const userGroups = userGroupsResponse.match(
     (groups) => groups,
@@ -44,25 +45,22 @@ const userGroups = userGroupsResponse.match(
     activeTopNavigationItem='account'
 >
     {
-        !accessToken ? (
-            <NeedToLogin message='You need to be logged in to view group information.' />
-        ) : (
-            groupDetailsResult.match(
-                (groupDetails) => (
-                    <GroupPage
-                        prefetchedGroupDetails={groupDetails}
-                        accessToken={accessToken}
-                        clientConfig={clientConfig}
-                        username={username}
-                        userGroups={userGroups}
-                        organisms={organisms}
-                        databaseName={databaseName}
-                        continueSubmissionIntent={continueSubmissionIntent}
-                        client:load
-                    />
-                ),
-                () => <ErrorBox>Failed to fetch group details, sorry for the inconvenience!</ErrorBox>,
-            )
+        groupDetailsResult.match(
+            (groupDetails) => (
+                <GroupPage
+                    prefetchedGroupDetails={groupDetails}
+                    accessToken={accessToken}
+                    clientConfig={clientConfig}
+                    username={username}
+                    userGroups={userGroups}
+                    organisms={organisms}
+                    databaseName={databaseName}
+                    continueSubmissionIntent={continueSubmissionIntent}
+                    loginUrl={loginUrl}
+                    client:load
+                />
+            ),
+            () => <ErrorBox>Failed to fetch group details, sorry for the inconvenience!</ErrorBox>,
         )
     }
 </BaseLayout>
diff --git a/website/src/services/commonApiTypes.ts b/website/src/services/commonApiTypes.ts
index f718ed8056..b1cc662dba 100644
--- a/website/src/services/commonApiTypes.ts
+++ b/website/src/services/commonApiTypes.ts
@@ -11,6 +11,14 @@ export const [authorizationHeader] = makeParameters([
     },
 ]);
 
+export const [optionalAuthorizationHeader] = makeParameters([
+    {
+        name: 'Authorization',
+        type: 'Header',
+        schema: z.string().includes('Bearer ', { position: 0 }).optional(),
+    },
+]);
+
 export function withOrganismPathSegment<Path extends `/${string}`>(path: Path) {
     return `/:organism${path}` as const;
 }
diff --git a/website/src/services/groupManagementApi.ts b/website/src/services/groupManagementApi.ts
index a94399aff2..2ec275e779 100644
--- a/website/src/services/groupManagementApi.ts
+++ b/website/src/services/groupManagementApi.ts
@@ -1,7 +1,12 @@
 import { makeApi, makeEndpoint } from '@zodios/core';
 import z from 'zod';
 
-import { authorizationHeader, conflictError, notAuthorizedError } from './commonApiTypes.ts';
+import {
+    authorizationHeader,
+    conflictError,
+    notAuthorizedError,
+    optionalAuthorizationHeader,
+} from './commonApiTypes.ts';
 import { group, groupDetails, newGroup } from '../types/backend.ts';
 const createGroupEndpoint = makeEndpoint({
     method: 'post',
@@ -53,9 +58,8 @@ const getGroupDetailsEndpoint = makeEndpoint({
     method: 'get',
     path: '/groups/:groupId',
     alias: 'getGroupDetails',
-    parameters: [authorizationHeader],
+    parameters: [optionalAuthorizationHeader],
     response: groupDetails,
-    errors: [notAuthorizedError],
 });
 const getGroupsOfUserEndpoint = makeEndpoint({
     method: 'get',
diff --git a/website/src/services/groupManagementClient.ts b/website/src/services/groupManagementClient.ts
index 17c67b2d9c..f7120f9877 100644
--- a/website/src/services/groupManagementClient.ts
+++ b/website/src/services/groupManagementClient.ts
@@ -19,13 +19,13 @@ export class GroupManagementClient extends ZodiosWrapperClient<typeof groupManag
         );
     }
 
-    public getGroupsOfUser(token: string) {
+    public getGroupsOfUser(token: string | undefined) {
         return this.call('getGroupsOfUser', {
             headers: createAuthorizationHeader(token),
         });
     }
 
-    public getGroupDetails(token: string, groupId: number) {
+    public getGroupDetails(groupId: number, token?: string) {
         return this.call('getGroupDetails', {
             headers: createAuthorizationHeader(token),
             params: { groupId },
diff --git a/website/src/types/backend.ts b/website/src/types/backend.ts
index 4453b38c58..42fdf4d331 100644
--- a/website/src/types/backend.ts
+++ b/website/src/types/backend.ts
@@ -296,7 +296,7 @@ export const newGroup = z.object({
     groupName: z.string(),
     institution: z.string(),
     address,
-    contactEmail: z.string(),
+    contactEmail: z.string().nullable(),
 });
 export type NewGroup = z.infer<typeof newGroup>;
 
@@ -307,11 +307,17 @@ export type Group = z.infer<typeof group>;
 
 export const groupDetails = z.object({
     group,
-    users: z.array(
-        z.object({
-            name: z.string(),
-        }),
-    ),
+    /**
+     * List of users in the group.
+     * Null when the requesting user is not authenticated or not authorized to view members.
+     */
+    users: z
+        .array(
+            z.object({
+                name: z.string(),
+            }),
+        )
+        .nullable(),
 });
 
 export type GroupDetails = z.infer<typeof groupDetails>;
diff --git a/website/src/utils/createAuthorizationHeader.ts b/website/src/utils/createAuthorizationHeader.ts
index 43bb286343..aff5a1e886 100644
--- a/website/src/utils/createAuthorizationHeader.ts
+++ b/website/src/utils/createAuthorizationHeader.ts
@@ -1,3 +1,3 @@
-export function createAuthorizationHeader(token: string) {
-    return { Authorization: `Bearer ${token}` }; // eslint-disable-line @typescript-eslint/naming-convention
+export function createAuthorizationHeader(token?: string) {
+    return token ? { Authorization: `Bearer ${token}` } : undefined; // eslint-disable-line @typescript-eslint/naming-convention
 }
diff --git a/website/vitest.setup.ts b/website/vitest.setup.ts
index 47361a333b..a8208124ed 100755
--- a/website/vitest.setup.ts
+++ b/website/vitest.setup.ts
@@ -23,6 +23,8 @@ export const DEFAULT_GROUP_NAME = 'testGroup';
 
 export const testOrganism = 'testOrganism';
 
+export const testDatabaseName = 'testDatabase';
+
 export const testConfig = {
     public: {
         discriminator: 'client',
@@ -313,6 +315,8 @@ const lapisRequestMocks = {
     },
 };
 
+export const testUser = { name: 'testUser' };
+
 export const testGroups: Group[] = [
     {
         groupId: 1,