DWGdrop
DWGdrop is a web-based construction bid and drawing collaboration tool for contractors, estimators, subcontractors, architects, and engineering teams. It supports sending drawing packages and requests for quotation (RFQs) to trade partners, who can review materials and submit quotes through shared links. The browser-based workspace is described as supporting DWG, DXF, PDF, and spreadsheet-based bills of quantities, allowing teams to view and measure drawings and review quantities without a desktop CAD application. DWGdrop also provides RFQ status tracking, drawing revision handling, project questions and answers, and side-by-side quote comparison to help teams coordinate bid invitations and evaluate subcontractor responses. The workflow is intended for construction procurement and estimating teams exchanging drawings and bids with external partners.
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AOS
AOS is construction software that keeps project management, pay applications, accounting, field paperwork, compliance, and closeout on one job record instead of five tools. It is built primarily for mid-market general contractors and commercial subcontractors, with role-based workflows for owners, developers, architects and engineers, residential builders, and permit expediters. Teams manage drawings, RFIs, submittals, schedules, change orders, daily logs, vendor prequalification, materials, accounts payable, and lien-waiver tracking from the project record. Pay applications are generated from the schedule of values, with retainage and stored materials. Pricing is a flat monthly fee, not a percentage of construction volume; the GC Launch Pack is capped at 50 active projects during beta, with some capabilities offered as add-ons or on request.
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PreConstruct AI
PreConstruct AI is a web-based construction takeoff and estimating application for subcontractors bidding interior finishes, concrete, and wood framing work from PDF drawing sets. It reads drawing scales and uses plan notes, schedules, and partition legends to help identify and measure walls, ceilings, and concrete quantities. AI-assisted wall suggestions are in beta and are reviewed, approved, or adjusted by the estimator. Approved quantities become material lists for items such as studs, board, insulation, tape, compound, paint, concrete, and rebar, with calculations and drawing-sheet references. Estimators can apply their own material prices, create proposal PDFs, and export data to Excel or CSV. Projects can use imperial units, metric units, or both. The application supports estimating workflows; estimators review measurements and quantities before submitting a bid.
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SiteSense
Cloud-based web and mobile construction SaaS solution that digitizes your supply chain and materials management. Order and receive shipments of materials, select storage warehouse location, and pick materials from SiteSense® software to draw down materials inventory based on what is available in real-time. SiteSense® can be easily accessed from anywhere, at any time, and on any device (Android/IOS) both online and offline. Tracking the quantities and location of materials creates visibility for contractors and owners to identify early signs of construction material deficiencies that might affect project budgets and schedules.
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