“Yes. Google Chat supports exactly this use case.”
+ external client collaboration
“You can invite external clients into specific Google Chat Spaces without giving them access to your internal team conversations.”
+ guest accounts
“Google introduced dedicated Guest Accounts in March 2026, specifically to support collaboration with external clients, partners and vendors.”
+ space-level membership permissions
“This is based on Google Chat's space-level membership permissions.”
+ simple client collaboration
“This gives you a relatively simple way to collaborate with clients without exposing internal discussions.”
− external guest visibility of internal posts
“Also, remember that external guests can see messages posted by internal employees, apps and webhooks within the space they join.”
− subscription-dependent settings
“Some external-space settings depend on your Google Workspace subscription.”
Google Workspace
“If the client doesn't have a Google Workspace or Gmail account, Google can provision a dedicated Guest Account for them.”
“Google Drive sharing | Restricted to relevant files”
“If the client doesn't have a Google Workspace or Gmail account, Google can provision a dedicated Guest Account for them.”