diff --git a/app/institutions/dashboard/-components/institutional-users-list/template.hbs b/app/institutions/dashboard/-components/institutional-users-list/template.hbs
index 71b0f3a452..a38dba8741 100644
--- a/app/institutions/dashboard/-components/institutional-users-list/template.hbs
+++ b/app/institutions/dashboard/-components/institutional-users-list/template.hbs
@@ -175,14 +175,15 @@
                             <OsfLink @href={{concat '/' institutionalUser.userGuid '/'}}>
                                 {{institutionalUser.userName}}
                             </OsfLink>
-                            <Button
-                                local-class='icon-message'
-                                aria-label={{t 'institutions.dashboard.send_message_modal.open_aira_label'}}
-
-                                {{on 'click' (fn this.openMessageModal institutionalUser.userGuid)}}
-                            >
-                                <FaIcon @icon='comment' />
-                            </Button>
+                            {{#if @institution.institutionalRequestAccessEnabled}}
+                                <Button
+                                    local-class='icon-message'
+                                    aria-label={{t 'institutions.dashboard.send_message_modal.open_aira_label'}}
+                                    {{on 'click' (fn this.openMessageModal institutionalUser.userGuid)}}
+                                >
+                                    <FaIcon @icon='comment' />
+                                </Button>
+                            {{/if}}
                         {{else if (eq column.type 'osf_link')}}
                             <OsfLink @href={{concat '/' institutionalUser.userGuid '/'}}>
                                 {{institutionalUser.userGuid}}
diff --git a/app/institutions/dashboard/-components/object-list/contributors-field/template.hbs b/app/institutions/dashboard/-components/object-list/contributors-field/template.hbs
index 2750217ec7..db7e51600d 100644
--- a/app/institutions/dashboard/-components/object-list/contributors-field/template.hbs
+++ b/app/institutions/dashboard/-components/object-list/contributors-field/template.hbs
@@ -7,13 +7,15 @@
         </OsfLink>
         {{t 'institutions.dashboard.object-list.table-items.permission-level' permissionLevel=contributor.permissionLevel}}
     </div>
-    <Button
-        local-class='icon-message'
-        aria-label={{t 'institutions.dashboard.request_project_message_modal.open_aria_label'}}
-        {{on 'click' (fn this.handleOpenModal contributor)}}
-    >
-        <FaIcon @icon='comment' />
-    </Button>
+    {{#if @institution.institutionalRequestAccessEnabled}}
+        <Button
+            local-class='icon-message'
+            aria-label={{t 'institutions.dashboard.request_project_message_modal.open_aria_label'}}
+            {{on 'click' (fn this.handleOpenModal contributor)}}
+        >
+            <FaIcon @icon='comment' />
+        </Button>
+    {{/if}}
 {{else}}
     <div>
         {{t 'institutions.dashboard.object-list.table-items.no-contributors'}}
diff --git a/app/models/institution.ts b/app/models/institution.ts
index 9b0432faf0..7627611a04 100644
--- a/app/models/institution.ts
+++ b/app/models/institution.ts
@@ -35,6 +35,7 @@ export default class InstitutionModel extends OsfModel {
     // identifier_domain in the admin app
     @attr('fixstring') iri!: string;
     @attr('fixstringarray') iris!: string[];
+    @attr('boolean', { defaultValue: false }) institutionalAccessRequestEnabled!: boolean;
 
     // TODO Might want to replace calls to `users` with `institutionUsers.user`?
     @hasMany('user', { inverse: 'institutions' })