A flat and geometric design that is easy to use on different colors and backgrounds, also as a watermark over a picture, as in this example.
I chose to make the bottom part of the logo like a braiding because I wanted to suggest that is about something complex and solid, strong and trustful. Also looks like a fiber glass braiding structure as in the left bottom background example from this presentation (the company produce high tech fiber glass reinforcements for a wide variety of advanced composite applications)