1. 180 SKills 2009
2. ABA English 2007
3. ABC360 2011
4. Absorb LMS 2003
5. Academia.edu 0
6. Acadsoc 2010
7. Air & Space Magazine 1986
8. AME CEE 2020
9. Australian Popular Science 1872
10. AutoCAD Drafting India 1992
11. Aviation Adventures
12. Aviation Australia 2001
13. Aviation eLearning 2010
14. Aviation Equipment Processing
15. AviationLearn 2003
16. AviationStore
17. Blue Chip Venture Company 1990
18. Bofu Fund Management 0
19. Calspan Corporation 0
20. Canadian Space Agency 1989
21. Cosmosphere 0
22. Defense-Update 0
23. DIYguru 2016
24. E! Entertainment 1985
25. Edutel Technologies Private Limited 0
26. EINSATE
27. Evidence-Based Training Foundation 2013
28. Fan-Mei Group 2015
29. Foundation for Space Development 2009
30. GF Xinde Investment Management 1
31. Gleim Aviation 1980
32. Glenndale Air Service
33. Greylock
34. Guangdong Culture Venture Factory
35. Hangbiao 360 2010
36. Ideal Education 1987
37. IDG Capital 0
38. Kennet Partners 1
39. Khosla Ventures
40. Monarch Air 1986
41. Moon 0
42. N.S. Bienstock 1964
43. NASTAR Center 0
44. Nauta Capital 1
45. NBCUniversal 1912
46. NSC 0
47. NYCAviation.com 2003
48. P2 Aviation Technology
49. PaineWebber 1880
50. Pelesys Learning Systems 1997
51. Penn Yan Flying Club
52. Phoenix Air Group
53. Pilot Career Center 2004
54. Plug N Fly 2006
55. Prokitor AB 2009
56. ProtoType Industries 1988
57. Rizzoli International Publications 1974
58. Robinson Aviation 1986
59. Rovi Corporation 1983
60. Satellite Industry Association
61. Satnews Publishers 0
62. SatProf
63. ScienceHook 2019
64. SDVentures 1991
65. Seds Canada 1981
66. Shenzhen Capital Group 1999
67. Shenzhen Rainbow Venture Capital Holdings 0
68. Shephard Media 1981
69. Sinowisdom 2002
70. SkyGuru 2016
71. Skywalkers Techeducation
72. Space.com 1999
73. SpaceD 2016
74. Spaceflight Now 0
75. Space Generation Advisory Council 1999
76. SpaceNews 0
77. SpacePolicyOnline.com 0
78. SpaceRef.com 0
79. Spark Astronomy
80. Spark Capital 0
81. SR Technologies (SRT Group) 1999
82. Tencent Zhongchuang Space
83. The Blaze 2010
84. The Disruptors 2018
85. The PIC Group 1985
86. The Radio Amateur Satellite Corporation 1969
87. True Ventures
88. Venrock