Slackin - Create your own public Slack chat community

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Message Bender - Backup and delete all Slack messages in bulk

Chatlio - When you have a business to run, your average instant messaging software just will not do. You need an internal presence upon which your entire team can collaborate on. Read more about Chatlio.

Slack Archive - Public, searchable & browseable archive of Slack channels

Avochato - Text messaging for your business.