Improvement for Guideline ACT's logo

This is what 'GUIDELINE ACT' or 'GLA' was looking for in their logo design

Guideline ACT is celebrating their 40 years anniversary and would like to have some exiting changes.
We would like to have a better and more modern version of our current logo (attached) to make the logo look contemporary and visually appealing.
We are open to both option: designs without changing too much the initial concept or a brand new logo designs, so please be bold.
We also would like to have a smaller option of our logo, say an ICON, to use in our social media, so open to ideas.

Guideline ACT, stablished in 1985, is a mid-tier Civil Engineering Contractor based in the Canberra region, Australia.
Guideline ACT undertakes all types of Civil Engineering Construction projects, specialising in technically challenging projects.
Guideline ACT own, operate and maintain an extensive range of plant, including earth moving machinery, specialised plant and construction equipment
As the Guideline ACT Family our priorities are 1. SAFETY 2. ENVIRONMEN… Read more