Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
SupportYourApp - Connecting talented people with the blooming IT industry to help them grow faster by outsourcing support.
Talkus - Chat with your website users from Slack
Influx - Customer support as a service
Speaklyn - Website visitors chat with you on Facebook Messenger
Zervicio - Customer Support Services