I have also uploaded all the concepts that came to me during my brainstorming.
Hope you like 'em.
Every concept plays with on the double Es, which I find appealing about your company name.
A concept that you might find appealing is the crosshair, knot design featuring again a double E. #135, #139 and #140.
Personally I like how these look on a black background, maybe you will too.
#123, #129
That is all from me,
Thank you,
Best Regards,
Mint