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On Center Software develops construction software, estimating software and takeoff software for commercial and residential contractors. We also provide construction labor tracking software.

Visit the official home page for Windows. Find help, purchasing info, and downloads for Windows 7, Internet Explorer, and other Windows products.

Takeoff and collaborate on construction blueprints from any mac or pc.

Ultra Nav Aircraft Performance Software will compute the maximum allowable takeoff weight and inform you of limiting factors.

Autodesk is a world leader in 3D design software for manufacturing, building, construction, engineering, and entertainment. Since introducing AutoCAD in 1982, Autodesk has developed a broad portfolio of 3D CAD software programs to help users visualiz...

Whether you are in need or project management software, construction management software, or software for any variety of business needs, Capterra is the place for you. As a software industry leader, Capterra understands the need for software in our i...

USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards

Carlson provides design software for data collection, civil engineering, land surveying, mining, construction, agriculture, accident reproduction, and law enforcement

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

PlanSwift is the #1 digital construction takeoff & estimating software for calculating quantity of material and labor using digital blueprints.

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