Do you need, engineering inspiring logo? I saw this post couple day ago. I applied for the job. But may my points are not correct.
I can do this work for you as you want. I take a time to do the things that inspire your products, services to clients. Your provided links of websites are ok, as you saw these all are related to each other as compare to the design. No doubt, this is the choice, I am thinking this is the font based logo; The font is most important part of this job. As I am looking right now.

If you need the different version of similar sample