ESA Summer of Code in Space

"ESA Summer of Code in Space (SOCIS) is a program run by the European Space Agency. It aims at offering student developers stipends to write code for various space-related open source software projects."
http://sophia.estec.esa.int/socis/

software open-source

Google Summer of Code

"Google Summer of Code is a program that offers student developers stipends to write code for various open source projects. Historically, the program has brought together over 7,500 students with over 440 open source projects, to create over 50 millions of lines of code."
https://developers.google.com/open-source/gsoc/

worldwide software open-source

Internet Foundation Austria / netidee

Funding for innovative ideas and research around Internet & Open Source in Austria: "Es wartet eine Million Euro auf innovative Projektideen und wissenschaftliche Abschlussarbeiten. Zusätzlich winken zweimal 3.000 Euro Sonderpreis in den Kategorien „Internet of Things“ und „Internet for Refugees“.“
https://www.netidee.at/

austria software open-source

John Hunter Technology Fellowship

"The John Hunter Technology Fellowship aims to bridge the gap between academia and real-world, open-source scientific computing projects by providing a capstone experience for individuals coming from a scientific educational background."
https://www.numfocus.org/programs/john-hunter-technology-fellowship/

software open-source

Knight-Mozilla Fellowship

"The Knight-Mozilla Fellowship places creative technologists in newsrooms to work on open-source tools and support reporting that strengthens the web and changes people's lives."
https://opennews.org/what/fellowships/

software open-source

Linux Foundation

"The Linux Foundation protects and promotes the ideals of freedom and generous collaboration established through the development of Linux, and shares these ideals to power any endeavor aiming to make the future a better place in which to live."
http://www.linuxfoundation.org/

open-source

Mozilla Open Source Support (MOSS)

"an awards program specifically focused on supporting the Open Source and Free Software movement"
https://wiki.mozilla.org/MOSS

software open-source

OpenHatch Opportunities Wiki

This page is a list of financially supported opportunities (usually internships) for people (usually students) to work on free/open source projects.
http://wiki.openhatch.org/Opportunities

open-source

Outreachy Internships

"Outreachy helps people from groups underrepresented in free and open source software get involved. We provide a supportive community for beginning to contribute any time throughout the year and offer focused internship opportunities twice a year with a number of free software organizations."
https://www.gnome.org/outreachy/

software open-source

Prototype Fund

"The Prototype fund supports the implementation of ideas in civic tech, data literacy, data security and software infrastructure. With a grant of up to €30,000, software developers, hackers and creatives can write code and develop open source prototypes over a period of six months."
http://prototypefund.de/?lang=en

germany software open-source

Segment Open Fellowship

"The Fellowship is a three month long program supporting three to five open-source developers with $8k per month to focus full-time on their project, no other strings attached. Since the very beginning, open-source has played a critical role in Segment’s journey. As we’ve grown, we’ve continued to try and create useful tools and utilities that we open source to continue giving back to the community that gave us our start. As Segment scales, we’d like to continue scaling our support for the open-source community even beyond our internal needs."
https://segment.com/blog/segment-open-fellowship-2017/

software open-source

The Comcast Innovation Fund

"The Comcast Innovation Fund offers funding for researchers at leading academic institutions and elsewhere to support research that is of mutual interest to Comcast and the research community. It also provides funding to support open source software development."
http://innovationfund.comcast.com/

software open-source

X.Org Endless Vacation of Code

"The basic terms and conditions of this program are quite similar to Google's GSoC. The key differences are that: [...] We will also consider a broader range of proposals than GSoC: technical documentation is a specific area of interest for us."
https://www.x.org/wiki/XorgEVoC/

worldwide software open-source