Take Off Estimating Software Vertigraph, Inc. develops and markets quantity takeoff and estimating solutions to automate the takeoff, digitizing, estimating, bidding and project management activities. In order to create a construction estimate and bid, you need top-notch takeoff software that quickly, easily and accurately lists the quantities so that your cost estimate is accurate and profitable. Vertigraph, Inc best in the industry takeoff software lets you craft and organize a list of everything that is needed to construct any type of project.