LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.

Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.

Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.

Bluebeam Revu - The end-to-end digital workflow and collaboration solution trusted by over 1 million AEC professionals worldwide. Revu delivers award-winning PDF creation, editing, markup and collaboration technology designed for AEC workflows.

Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.

Fieldwire - The construction app for project and task management in the field.