Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
InsightSquared - #1 for Salesforce.com Pipeline forecasting, profitability analysis, activity tracking: all the small business intelligence you need. Works using CRM data and automatic syncing.
WATI - No-code chatbot builder for WhatsApp Business
Aviso - Aviso provides predictive analytics software to help sales organizations optimize their performance and exceed revenue goals using machine learning algorithms and portfolio management techniques.
SleekFlow.io - Sell, convert & support better on chat
Sidekick by Hubspot - Customer insight integrated with your email tools.