diff --git a/services/static-webserver/client/source/class/osparc/component/share/Collaborators.js b/services/static-webserver/client/source/class/osparc/component/share/Collaborators.js
index ff38c8a1faf..4ea6ca62252 100644
--- a/services/static-webserver/client/source/class/osparc/component/share/Collaborators.js
+++ b/services/static-webserver/client/source/class/osparc/component/share/Collaborators.js
@@ -195,7 +195,7 @@ qx.Class.define("osparc.component.share.Collaborators", {
           });
           item.addListener("demoteToCollaborator", e => {
             const orgMember = e.getData();
-            this._demoteToCollaborator(orgMember);
+            this._demoteToCollaborator(orgMember, item);
           });
           item.addListener("removeMember", e => {
             const orgMember = e.getData();
diff --git a/services/static-webserver/client/source/class/osparc/component/share/CollaboratorsStudy.js b/services/static-webserver/client/source/class/osparc/component/share/CollaboratorsStudy.js
index 35c15661307..96d9f4de05e 100644
--- a/services/static-webserver/client/source/class/osparc/component/share/CollaboratorsStudy.js
+++ b/services/static-webserver/client/source/class/osparc/component/share/CollaboratorsStudy.js
@@ -227,14 +227,37 @@ qx.Class.define("osparc.component.share.CollaboratorsStudy", {
       );
     },
 
-    _demoteToViewer: function(collaborator, item) {
-      this.__make(
-        collaborator["gid"],
-        this.self().getViewerAccessRight(),
-        this.tr("Collaborator successfully made Viewer"),
-        this.tr("Something went wrong making Collaborator Viewer"),
-        item
-      );
+    _demoteToViewer: async function(collaborator, item) {
+      const groupId = collaborator["gid"];
+      const demoteToViewer = (gid, itm) => {
+        this.__make(
+          gid,
+          this.self().getViewerAccessRight(),
+          this.tr("Collaborator successfully made Viewer"),
+          this.tr("Something went wrong making Collaborator Viewer"),
+          itm
+        );
+      };
+
+      const groupData = await osparc.store.Store.getInstance().getGroup(groupId);
+      const isOrganization = (groupData && !("id" in groupData));
+      const preferencesSettings = osparc.desktop.preferences.Preferences.getInstance();
+      if (isOrganization && preferencesSettings.getConfirmDemoteOrgnaization()) {
+        const msg = this.tr("Demoting to Viewer will remove write access to all the members of the Organization. Are you sure?");
+        const win = new osparc.ui.window.Confirmation(msg).set({
+          confirmAction: "delete",
+          confirmText: this.tr("Yes")
+        });
+        win.center();
+        win.open();
+        win.addListener("close", () => {
+          if (win.getConfirmed()) {
+            demoteToViewer(groupId, item);
+          }
+        }, this);
+      } else {
+        demoteToViewer(groupId, item);
+      }
     },
 
     _demoteToCollaborator: function(collaborator, item) {
diff --git a/services/static-webserver/client/source/class/osparc/desktop/preferences/Preferences.js b/services/static-webserver/client/source/class/osparc/desktop/preferences/Preferences.js
index 5334bf4b713..a67d15932ad 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/preferences/Preferences.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/preferences/Preferences.js
@@ -49,6 +49,13 @@ qx.Class.define("osparc.desktop.preferences.Preferences", {
       event: "changeConfirmDeleteStudy"
     },
 
+    confirmDemoteOrgnaization: {
+      nullable: false,
+      init: true,
+      check: "Boolean",
+      event: "changeConfirmDemoteOrgnaization"
+    },
+
     confirmDeleteNode: {
       nullable: false,
       init: true,
diff --git a/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ConfirmationsPage.js b/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ConfirmationsPage.js
index 3bb0662507f..02ed9040d32 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ConfirmationsPage.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/preferences/pages/ConfirmationsPage.js
@@ -72,6 +72,11 @@ qx.Class.define("osparc.desktop.preferences.pages.ConfirmationsPage", {
       }, this);
       box.add(cbConfirmDeleteStudy);
 
+      const cbConfirmDemoteOrgnaization = new qx.ui.form.CheckBox(this.tr("Demote Organization collaboration"));
+      preferencesSettings.bind("confirmDemoteOrgnaization", cbConfirmDemoteOrgnaization, "value");
+      cbConfirmDemoteOrgnaization.bind("value", preferencesSettings, "confirmDemoteOrgnaization");
+      box.add(cbConfirmDemoteOrgnaization);
+
       if (!(osparc.product.Utils.isProduct("tis") || osparc.product.Utils.isProduct("s4llite"))) {
         const cbConfirmDeleteNode = new qx.ui.form.CheckBox(this.tr("Delete a Node"));
         preferencesSettings.bind("confirmDeleteNode", cbConfirmDeleteNode, "value");
diff --git a/services/static-webserver/client/source/class/osparc/store/Store.js b/services/static-webserver/client/source/class/osparc/store/Store.js
index 7665283a9f6..65018aa56e2 100644
--- a/services/static-webserver/client/source/class/osparc/store/Store.js
+++ b/services/static-webserver/client/source/class/osparc/store/Store.js
@@ -533,6 +533,20 @@ qx.Class.define("osparc.store.Store", {
       });
     },
 
+    getGroup: function(gid) {
+      return new Promise(resolve => {
+        this.getPotentialCollaborators()
+          .then(potentialCollaborators => {
+            let group = null;
+            if (gid in potentialCollaborators) {
+              group = potentialCollaborators[gid];
+            }
+            resolve(group);
+          })
+          .catch(() => resolve(null));
+      });
+    },
+
     __getOrgClassifiers: function(orgId, useCache = false) {
       const params = {
         url: {