Software to run a large residential electrical contractor business

The operation has a run rate over $30mm/year, mostly own staff, some sub contractors, many jobs, most of which are 2-3 days duration. Runs on QB and Excel now. What systems would you suggest for a starter list to help implement more formal processes and controls over: -Job/order management and despatch (own staff v subs) -Job costing/billing/ (materials, own labor, sub labor, etc) -Materials consumed/purchasing, including truck inventory -On site billing/payment collection plus back office AR, AP, GL, time entry Assume union labor reporting needs too.