Thankyou for the opportunity to design your logo. This concept emphasizes the acronym of your company name - to make it memorable I've also created a circle design so that even if the customer cannot remember the name, or even initials they will recall the simple, modern circles motif. I've used the dark steely blue from your website initially as this is a strong, secure color that works well.
Another treatment - the angled text in the circles gives a forward-thinking look to it. But this is not to knock my existing design, merely an alternative. Plus a new hook - see what you think.
#73 & #74 I have drawn the 3 letters together from my original circles design. I am cautious that the letters remain legible when put together and not become abstract forms - we know the letters are SZE but would a fresh eye work that out. This is important in my view. By reversing the letters out of a background shape they become illuminated rather than dark on a white background.