I like elements of each of #11, 12 and 13.
#11 I like the separation line between the acronym and full name and the use of different colour on each side. I wasn't so keen on the formation of the letters though.
#12 I like the use of the circle and the reduced font size of limited. Making HYSIO ABOA stand out. The design inside the circle didn't appeal.
#13 I like the overall impression but couldn't really make out HAL.
Given the complexity of the name, using the acronym makes remembering the company simple. I think it is important to be able to make out the acronym clearly if used in the design.
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.
Many thanks,
Stefan