Construction Project Management Software for Specialty Subcontractors Most specialty contractors run their business on four or five tools that don’t talk to each other, held together by legacy spreadsheets and sticky notes. The estimate lives in one file, the PO in another, the invoice in a third, and every hand-off is a chance to lose money on a job you thought you’d won. Leviathan Built replaces that stack with one platform. Measure the plans, price the bid, run the job, track the cost and hear from the field, without typing the same number in twice. Your scopes, your materials, your formulas. Leviathan Built works for any trade because the trade knowledge is yours, not ours.