I like the theme of #1, #8 and #9, with the emphasised acronym, since HAL is simple an Hytsio Aboa Limited is complex, it hints at making the complex seem simple. I also like the use of the 3-D ring, making part of A and which makes me think of "communication".
I also like the way you have shown how the design works on the black background (as used on my draft website) and also on white (i.e. paper). I can't decide which is best!
I also like the inclusion of the slogan but think that it may be too small to read.
To inspire you further, I deal with the whole range of IT communications networks, from global (satellites and cables) to local (4G and radios) as well as all the Infrastructure that send traffic over them (mobile devices, desktops to data centres) from Land, Sea and Air.
I like the colour effect that you used on HAL, in designs #37, 38 and 39. I also prefer the wider spacing between Hytsio Aboa Limited (e.g. in #8, rather than #20).
However, I still have design #20 ranked highest because I prefer the use of mixed case in the full name (Hytsio Aboa Limited or Ltd).
Would it be possible to combine various elements of your designs? Overall, I prefer the layout of #20, the HAL used in #38 and the full name font used in #8.
Also, I added an additional element to the brief. My friends suggested using a shorter slogan "Achieving ICT transformation".
I appreciate and value your continued input. Regards, Stefan