Workbot for Slack - Work your apps from Slack
Trello for Slack - Organize anything with anyone, inside Slack
Birdly - Birdly is an expense management and expense report solution for SMBs.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
tray.io - Enterprise-scale integration platform
Halp - Slack-first ticketing for internal helpdesk