We Love Drupal
Since Drupal 4, web.net has been integrated deeply into this enterprise level, Open Source Content Management System. Capable of anything you can throw at it, Drupal delivers in terms of security and functionality - whether you're looking to promote your small business, or create a powerful web app with thousands of members, Drupal has the right tools to get the job done.
A self-hosted, enterprise grade CRM software solution. This powerful and sophisticated Customer Relationship Management tool comes with a ton of great features such as Accounts, Contacts, Leads, Opportunities, Quotes, Calendar, Cases, Workflow, Projects - this list goes on for days!
Easily keep in touch with your constituents and donars. For a list of everything SuiteCRM has to offer, click here for more.
Safely store and transfer files over SSL or encrypt them on your own self-hosted data storage server. Install powerful apps like synced calendars, image galleries and office tools to collaborate with colleagues online. Think Dropbox or Google Drive without any of those creepy peering eyes.
Have complete control over your data in the cloud with a Nextcloud storage solution.
Built on top of Drupal 8, Opigno is a high-end online Learning Management Solution for those looking to implement course/class/lesson structures with student/teacher role assignments. Easily create standardized quizzes and exams ranging from formats such as Multiple Choice, True/False, Arithmetic, Long Answer, Fill in the Blanks etc.
Create lessons and classes with passing threshold to whatever you set. Easily add students to courses and track their lesson statistics (time spent, correct answers etc). Automatically distribute certificates when a students passes a course or class.
For all Opigno has to offer, see their complete feature list here.