Zendo - Zendo allows you to sell productized, subscription and custom services. Collaborate and collect payments. Create quotes and invoices. Eliminate multiple tools and enjoy the simplicity.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
GreenOrbit - Intranet software with everything you need, built in
osTicket - osTicket is a widely-used open source support ticket system.
Nextcloud Hub - On-premises, enterprise collaboration solution for documents, emails, calendars and more.
IC Source - IC Source is the advanced-level intranet software that provides you with a wide range of features to communicate with your employees and team members effectively.