code.kiwi.com

Community of people who organise all kind of programming events
Website
Facebook

DZS

The Centre for International Cooperation in Education
Website

Eurosender

Send packages with great prices within Europe
Website

GIVT

Help non-profit organisation with online shopping
Website

Grammarly

Keep improving your English and learn how to eliminate your mistakes.
Website

Vodafone

Pre-paid SIMcards espacially designed for incoming foreign students!
Website