ARCAD

Architectural CAD system for the Linux operating system.
http://www.arcad.de/

Cad Details

Library of construction details and product profiles for architecture, engineering, and landscaping. Registration required to gain access.
http://www.caddetails.com/

MultiCad

A drafting program for architects with 3D and 2D versions, for Windows.
http://www.multiquant.com/

PocketCAD

A mobile CAD software for AEC professionals to create and edit drawings on Windows based handheld PCs.
http://www.pocketcad.com/

BricsNet

AEC software development company primarily involved with Microstation and Intellicad AEC add-ons and related building industry software
http://www.bricsnet.com

Artifice, Inc.

Develops and markets DesignWorkshop, an architectural 3D modelling software for Windows and Macintosh.
http://www.artifice.com/

ArCon

A 3D CAD software for use in civil engineering, architecture, and interior design.
http://www.arcon-software.com/

A E C Technologies

Applications software expertise with cad and multimedia products for key industries.
http://www.aectech.com/

BOA

Architectural 3D design software for Apple Macintosh systems.
http://www.boa-research.com/

SCADDS

Offers CAD software for the architectural, civil and Structural Engineering domains, as well as related services.
http://www.scadds.com/

WSCAD Electronic GmbH

CAD systems for electrical designers, project planners, engineering offices and service providers, as well as for industrial and manufacturing control engineers.
http://www.wscad.com/

Eagle Point Software Corporation

CAD software for building design and estimating, civil design, hydraulics, landscaping, structural engineering, and surveying.
http://www.eaglepoint.com/

Argos Systems, Inc.

Software for construction and design management, with CAD tools for wood and steel frameworks and premanufactured housing.
http://www.argos.com/

FIT, Inc.

The creators of Cadvance, a Windows CAD program for architects, engineers and designers.
http://cadvance.com/

Interstudio Srl.

Software for architectural 3D CAD, land modelling, surveying, photogrammetry, and geotechnical evaluations, for Macintosh,
http://www.interstudio.net/

Home Plan Pro

Software that makes it easy and fun to draw a bird house or your dream home.
http://www.homeplanpro.com/

Amethyst ShadowFX

A sun and shadow modelling program for architects and town planners, working with data from DWG/DXF files.
http://www.shadowfx.co.uk/

Informatix Software International

Developers of the Piranesi and MicroGDS software products for the architectural, engineering and construction industry.
http://www.microgds.com/

CAD Quest, Inc.

A series of simple tools for the design and estimation of decks, fences, pavings, and wood frame structures.
http://www.cad-quest.com/

CAD Consulting USA

Distributor for the ALLPLAN FT architectural CAD software in North America, with information about the product and related services.
http://www.cadconsulting-usa.com/

Form.Z

Software for complex 3D modelling and visualisation. Designed and conceived by an architect
http://formz.com

SketchUp 3D

@Last Software designed this sketch-based 3D design program that is easy to use.
http://www.sketchup.com

Common Point Technologies

Provides 4D visual planning solutions to the architecture, engineering and construction industry.
http://www.commonpointinc.com/

Building Composer

A free, open source, suite of criteria-based building design tools to support architectural programming and conceptual design.
http://bc.cecer.army.mil/

Expos Software

Expos is a specialized software for exhibition stands designing. It is a completely standalone system using mainly Octanorm items. 3D visualization is also built in.
http://expos2.3web.cz/

Quest Solutions, Inc.

Earth measuring, estimating, and bidding software for construction contractors.
http://www.questsolutions.com/

Soft Tech Engineers

Civil Engineering Applications for the use of consulting engineers, structural designers, and architects.
http://www.softtech-engr.com/

ideCAD Software GmBH

AEC CAD software including ideCAD Architecture, ideCAD Structural, ideCAD Render and libraries.
http://www.idecad.com/

TAD: The Architect's Desktop

TAD Designer is a holistic design software. It is a solid 3D modelor based on an abstract representation system for all architecture elements
http://www.tad.tangentially.com

PowerCAD

CAD program in 2D/3D for architectural and mechanical applications, with AutoCAD compatibility features.
http://www.powercad.com/

Revit Users Resource Center

Download families, share knowledge, learn more and ask questions about Revit.
http://www.revitcity.com

Autodesk Revit

Revit is a parametric building modeler for architects, with intelligent building components, views, and annotations.
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=3781831