|Type||Communications satellite Telecommunications network|
|Industry||Science and Technology|
|Headquarters||18 Innovation Place, Saskatoon, SK, Canada|
|Key people||Patrick Thera (President)|
|Employees||270 (Dec 2010)|
SED Systems is a communications company supplying both systems and services to the satellite industry. Originating in 1965, SED is located in the Innovation Place Research Park on the University of Saskatchewan campus. As a division of Calian Ltd., SED employs approximately 300 employees and annually achieves sales of about 50 million dollars.
SED serves an international market that includes government defense departments, space organizations as well as commercial customers such as Boeing Satellite Systems, Inmarsat and XM Satellite Radio. 
Spanning the past 10 years, SED Systems provided the European Space Agency (ESA) with 3 deep-space antennas located in Perth, Australia and Cebreros, Spain, and soon to be completed in Argentina. These are some of the largest antennas in the world, spanning 35 meters.
Canada played an active role in the research and development of the International Space Station (ISS) with endeavors such as the Mobile Servicing System (MSS). SED Systems was a part of the Mobile Servicing System program developed the Shuttle Remote Manipulator System (SRMS), or Canadarm 2. The Canadarm 1 was developed by a team led by Spar Aerospace Special Products and Advance Research Division of De Havilland Canada, in which SED Systems also played a key role.
The University of Saskatchewan's Institute of Space and Atmospheric Studies came together with university scientists and researchers such as Dr. Alex Kavadas to form the Space Engineering Division or SED Systems. The first project was Black Brant (rocket) instrumentation design and construction for studying the upper atmosphere.
- Ralko, Joe (2007). "Space Engineering Division (SED)". Retrieved 2007-09-09.
- Canadian Space Agency, Government of Canada (2007). "An Historical Perspective Canadarm, Shuttle Remote Manipulator System (Canadarm) Canada's Contribution to the Space Shuttle Program". Retrieved 2007-09-09.
- SED Systems - a division of CALIAN Ltd. (2007). "SED Systems - Company History". Retrieved 2007-09-08.