# Vertigraph > Construction takeoff and estimating software for commercial contractors. BidScreen XL puts quantity takeoff inside Microsoft Excel. SiteWorx/OS models cut and fill from PDF drawings. Drawing Compare highlights revisions between plan sets. Vertigraph, Inc. is a Dallas, Texas software company founded in 1979. Our customers are commercial construction estimators and general/sub contractors across the United States who do quantity takeoff (measuring material and labor from drawings) and assemble bids for competitive construction work. Licensing is perpetual purchase or annual lease, with optional Full_Serve maintenance for updates and support. The Concurrent License Manager (CLM) lets estimating teams float a shared license pool across users. ## Products - [BidScreen XL](https://www.vertigraph.com/products/bidscreen-xl): On-screen quantity takeoff that runs as a Microsoft Excel add-in. Estimators measure counts, lengths, areas, and volumes from PDF drawings without leaving their estimating workbook. Windows desktop application. - [SiteWorx/OS](https://www.vertigraph.com/products/siteworx-os): 3D earthwork takeoff for site-development and excavation contractors. Generates cut-and-fill volumes from PDF or vector site plans, including subgrades, strip topsoil, and overexcavation. Windows desktop application. - [Drawing Compare](https://www.vertigraph.com/products/drawing-compare): Compares two PDF drawing sets side-by-side and highlights additions, deletions, and changes. Built for estimators reconciling revised plan sets during a bid cycle. - [BidPoint XL](https://www.vertigraph.com/products/bidpoint-xl): Legacy digitizer-tablet takeoff for paper plans (GTCO/CalComp). Maintained for existing customers; not offered for new installations. ## Pricing & Licensing - [Pricing](https://www.vertigraph.com/pricing): Perpetual licenses and annual leases for all current products, with optional Full_Serve maintenance. Price increase scheduled for June 1, 2026. - [Concurrent License Manager](https://www.vertigraph.com/pricing/concurrent-license-manager): Network-based floating license pool for estimating teams. 3-license minimum; $100/yr per additional install (rising to $149/yr on June 1, 2026); Full_Serve bundled. ## Use cases (landing pages) - [Construction takeoff software](https://www.vertigraph.com/construction-takeoff-software): Overview of quantity takeoff workflows in BidScreen XL. - [Excavation takeoff software](https://www.vertigraph.com/excavation-takeoff-software): Cut-and-fill workflows in SiteWorx/OS for excavation contractors. - [Construction management software for general contractors](https://www.vertigraph.com/construction-management-software-for-general-contractors): How GCs use Vertigraph during bid assembly. ## Support & training - [Support hub](https://www.vertigraph.com/support): Entry point for FAQs, training, documents, and live support. - [FAQs](https://www.vertigraph.com/support/faqs): Searchable question-and-answer library covering installation, licensing, takeoff workflows, and troubleshooting. - [BidScreen XL training](https://www.vertigraph.com/support/training/bidscreen-xl): Guided modules and quizzes covering Excel-based takeoff. - [SiteWorx/OS training](https://www.vertigraph.com/support/training/siteworx-os): Guided modules and quizzes covering 3D earthwork. - [Product documents](https://www.vertigraph.com/support/product-documents): User guides and reference PDFs. - [Contact support](https://www.vertigraph.com/support/contact): Phone and email channels for licensed customers. ## Company - [About](https://www.vertigraph.com/about): Company overview and team. - [History](https://www.vertigraph.com/history): Vertigraph's history since 1979. - [Partners](https://www.vertigraph.com/partners): Resellers and integration partners. - [Testimonials](https://www.vertigraph.com/testimonials): Customer quotes. - [Blog](https://www.vertigraph.com/blog): Articles on takeoff, estimating, and contractor workflows. ## Trial and download - [Download a trial](https://www.vertigraph.com/download): 14-day free trial of BidScreen XL and SiteWorx/OS. Same installer as the paid version; activates as trial until a license key is entered. ## Optional - [Privacy policy](https://www.vertigraph.com/privacy) - [Terms](https://www.vertigraph.com/terms) - [HTML sitemap](https://www.vertigraph.com/sitemap) - [XML sitemap](https://www.vertigraph.com/sitemap.xml)