get.evercontact.comSoftware by Kwaga
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
StatusOk (Open source) - Get notified through Slack/email when your website is down
Pobuca Connect - Connect with your contacts.
Troops Slack Sales Gong - The most customizable Salesforce Gong in Slack
CRM-gx - Contact Management
UXPin + Slack - Keep tabs on design projects in Slack