diff --git a/infra/main.bicep b/infra/main.bicep
index cc2941012..c9a2df6c7 100644
--- a/infra/main.bicep
+++ b/infra/main.bicep
@@ -177,6 +177,7 @@ param tags resourceInput<'Microsoft.Resources/resourceGroups@2025-04-01'>.tags =
 
 var aiFoundryAiServicesAiProjectResourceName = 'proj-${solutionSuffix}'
 
+var deployerInfo = deployer()
 // ========== Resource Group Tag ========== //
 resource resourceGroupTags 'Microsoft.Resources/tags@2021-04-01' = {
   name: 'default'
@@ -184,6 +185,7 @@ resource resourceGroupTags 'Microsoft.Resources/tags@2021-04-01' = {
     tags: {
       ...tags
       TemplateName: 'Client Advisor'
+      CreatedBy: split(deployerInfo.userPrincipalName, '@')[0] 
     }
   }
 }