What are contractors using for bidding software?

[Will Barnard]

Calling all contractors, what software or cloud based systems are you using for bidding jobs? What software are you using (if separate from bidding) to manage jobs (calendars, plans and files uploads, gant charts, CRM, etc.)?

I am looking to scale our GC business and we are in need of a great system to save time doing bids, managing work orders and organizing weekly/daily/monthly timeframes.