The General Contractor Operating System

Run every job from the chase to the close.
On software you own.

Preconstruction, bidding, field execution, drawings, RFIs, cost control, billing with lien waivers, and portfolio reporting — one platform, one-time licence, your server or ours. No per-user fees. No subscription. Ever.

See the live demo Full working system with realistic project data — not a video.
Everything Procore does for a GCwithout renting it back every year
Commercial + residentialone platform for both sides of the house
Self-hosted or managedyour data on your server, always yours

The whole job, one system

Preconstruction

Pursuits, prequalification, bid packages with leveling, versioned estimates fed by takeoffs and your own cost history, proposals signed by link. Winning converts to a live project in one action — budget, commitments, schedule and compliance carried across.

Field execution

Daily logs with defensible weather records, role-based checklists that gate the schedule, punch, safety observations that reach everyone, hours coded at the source, photos — all working offline on a phone and syncing when signal returns.

Scheduling

A Gantt chart that tells the truth: bars derive from field checklists, a blocked step shows red with its stated reason, and dragging one bar previews everything that moves before anything is saved. Templates lay out a whole house in one action.

Documents & communication

Drawings split per sheet with markup that survives revisions, RFIs promoted straight from field observations, submittals scheduled backward from required-on-site, meetings with carry-forward, everything searchable.

Cost control

Budgets, commitments and change orders with histories that never overwrite; candidate change events raised automatically from field delays and impact-flagged RFIs; labour accrued at job-cost rates; actuals pulled from QuickBooks Online or Sage 300 CRE.

Billing & payment

Sub invoicing against commitment ceilings, lien waiver tracking that holds payment until conditions clear, AIA-style owner applications rendered to PDF, T&M tickets drawn from recorded hours, residential lender draws released by milestone.

The math your CFO already did

Procore for a mid-size GC runs tens of thousands of dollars a year, every year, forever — priced on your construction volume, so growing costs you more. GCOS is a one-time licence. You own the software and the data outright, host it yourself or let us manage it, and your cost per project falls every year you use it.

See the live demo

Tell us who you are and we'll email you an access code for the full working system — realistic projects, real workflows, nothing staged behind glass.

Already have a code? .