diff --git a/app/controllers/establishment.controller.js b/app/controllers/establishment.controller.js
index 7aed165..d98228b 100644
--- a/app/controllers/establishment.controller.js
+++ b/app/controllers/establishment.controller.js
@@ -424,7 +424,6 @@ exports.getAllEstablishments = async (req, res) => {
         { header: "Status", key: "status", width: 15 },
       ];
 
-      
       // Format data
       data.forEach((item) => {
         worksheet.addRow({
@@ -1770,6 +1769,53 @@ exports.establishmentBulkUpload = async (req, res) => {
       const r = p.r;
       const cityTownValue = r.city_town ? r.city_town.trim().toLowerCase() : "";
 
+      const uploadedEmails = prepared.map(p =>
+          p.email.trim().toLowerCase()
+        );
+
+        // fetch once
+        const [adminUsers, establishmentUsers] = await Promise.all([
+          User.findAll({
+            where: { email: uploadedEmails, is_active: true },
+            attributes: ["email"]
+          }),
+          EstablishmentUser.findAll({
+            where: { email: uploadedEmails, is_active: true },
+            attributes: ["email"]
+          })
+        ]);
+
+        const adminEmailSet = new Set(
+          adminUsers.map(u => u.email.toLowerCase())
+        );
+
+        const establishmentEmailSet = new Set(
+          establishmentUsers.map(u => u.email.toLowerCase())
+        );
+
+        // collect errors
+        const emailErrors = prepared
+          .map(p => {
+            const email = p.email.trim().toLowerCase();
+
+            return establishmentEmailSet.has(email)
+              ? { row: p.rowNum, error: "Email address already exists in company profile" }
+              : adminEmailSet.has(email)
+              ? { row: p.rowNum, error: "Email address is already registered in the admin users" }
+              : null;
+          })
+          .filter(Boolean);
+
+        // stop upload if any error found
+        if (emailErrors.length > 0) {
+          deleteFileSecure(sanitizedPath);
+          return res.status(409).send({
+            status: "failed",
+            message: "Email validation failed",
+            errors: emailErrors
+          });
+        }
+
       if (cityTownValue) {
         const id = cityTownMap[cityTownValue];
         if (!id) {
@@ -1792,23 +1838,23 @@ exports.establishmentBulkUpload = async (req, res) => {
       const p = prepared[k];
       const r = p.r;
 
-      const existEstablishmentUser = await EstablishmentUser.findOne({ where: { email:p.email, is_active: true } });
-       const existingAdminUser = await User.findOne({ where: { email:p.email, is_active: true } });
-        if (existEstablishmentUser) {
-          logger.info(`Email already exists in company profile: ${p.email}`);
-          return res.status(409).send({
-            status: "failed",
-            message: "This email address is already exists in company profile."
-          });
-        }
+      // const existEstablishmentUser = await EstablishmentUser.findOne({ where: { email:p.email, is_active: true } });
+      //  const existingAdminUser = await User.findOne({ where: { email:p.email, is_active: true } });
+      //   if (existEstablishmentUser) {
+      //     logger.info(`Email already exists in company profile: ${p.email}`);
+      //     return res.status(409).send({
+      //       status: "failed",
+      //       message: "This email address is already exists in company profile."
+      //     });
+      //   }
 
-        if (existingAdminUser) {
-          logger.info(`Email already exists in Admin Users: ${p.email}`);
-          return res.status(409).send({
-            status: "failed",
-            message: "This email address is already registered in the admin users."
-          });
-        }
+      //   if (existingAdminUser) {
+      //     logger.info(`Email already exists in Admin Users: ${p.email}`);
+      //     return res.status(409).send({
+      //       status: "failed",
+      //       message: "This email address is already registered in the admin users."
+      //     });
+      //   }
 
       const est = await Establishment.create({
         establishment_code: p.est,