| sbac.co.uk | The Society of British Aerospace Companies |
| sawe.org | Society of Allied Weight Engineers |
| naa-usa.org | National Aeronautic Association (NAA) |
| jaxa.jp | Japan Aerospace Exploration Laboratory: Institute of Space Technology and Aerona |
| casi.ca | Canadian Aeronautics and Space Institute |
| asm.at | Austrian Society for Aerospace Medicine |
| aia-aerospace.org | Aerospace Industries Association |
| aas-rocky-mountain-section.org | AAS Rocky Mountain Section - Guidance and Control Conference |
| tripod.com | CSA; Civilian Space Administration. |
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