Tuta (formerly Tutanota)

Independent privacy-friendly email and calendar provider which is ad-free and paid for entirely by their users’ subscriptions. There are free open source apps for Android, iOS, Linux, Mac and Windows. There’s also support for E2EE and 2FA wherever possible.

Fediverse address:

Collabora Office

Online fork of the LibreOffice productivity suite aimed at businesses, including long term tech support, admin tools, smartphone apps and cloud collaboration.

Fediverse address:

Its development company, Collabora, is one of the biggest upstream contributors to LibreOffice’s source code, and has a close relationship with the FOSS community.

Fediverse address:

E Foundation / Murena

The E Foundation develops and maintains a free open source privacy-friendly de-Googled version of Android, which you can either install yourself on your existing phone or buy pre-installed on a new phone. They sell pre-installed phones through the Murena brand, all of which are manufactured by established companies like Fairphone, Samsung etc.

Fediverse address (E Foundation):

Fediverse address (Murena):