
http://pldspace.com/new/
PLD Space is The European Company that is developing launcher technologies to provide suborbital and orbital commercial launch services, dedicated to small payloads and small satellites.

http://n7space.com/
Critical software development for satellite on-board computers. Experience in various embedded platforms used for space engineering (LEON, ARM)

http://detexify.kirelabs.org/classify.html
Anyone who works with LaTeX knows how time-consuming it can be to find a symbol in symbols-a4.pdf that you just can’t memorize. Detexify is an attempt to simplify this search.

http://demangler.com/
GCC and MSVC C++ Demangler

http://claudelafleur.qc.ca/Scfam-failures.html
Tables present, for each year, the list of spacecrafts that are considered failures.

horizontechnologies.eu
Horizon Aerospace Technologies is the world leader in airborne Sat Phone monitoring systems for Intelligence, Surveillance and Reconnaissance (ISR) applications, equipping governments worldwide by enhancing their SIGINT capabilities. We are the Original Equipment Manufacturer (OEM) for the FlyingFish™ BlackFish™ SIGINT systems which are in operation on numerous platforms worldwide. We participate daily in SAR missions via NATO and FRONTEX in the Mediterranean Sea, and are heavily involved in international operations around the Globe.

graphsketch.com
Online draw math functions

GOMspace
GomSpace is a globally leading manufacturer and supplier of nanosatellite solutions for customers in the academic, government and commercial markets. Our positions of strength include systems integration, nanosatellite platforms and advanced miniaturised radio technology.

godbolt.org
Compiler Explorer is an interactive tool that lets you type code in one window and see the results of its compilation in another window. Using the site should be pretty self-explanatory: by default the left hand pane is the source window and the right hand has the assembly output.

ESA
The European Space Agency (ESA; French: Agence spatiale européenne, ASE;German: Europäische Weltraumorganisation) is an intergovernmental organisation of 22 member states[6] dedicated to the exploration of space. Established in 1975 and headquartered in Paris, France