CumInCAD
- A cumulative index of publications about computer aided architectural design. It includes bibliographic information from journals and conferences such as ACADIA, CAADRIA, eCAADe, SiGraDi, CAAD futures and others.
- http://cumincad.scix.net/

Blocklayer.com
- Various geometric online-calculation tools for concrete blocks, stairs, and other construction design tasks.
- http://www.blocklayer.com/

GiveMePower GmbH
- Publisher of the CAD software PowerCAD and FelixCAD, which offer extensive AutoCAD compatibility, and a version for Windows CE handheld computers.
- http://www.givemepower.de/

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

Revit Users Resource Center
- Download families, share knowledge, learn more and ask questions about Revit.
- http://www.revitcity.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

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

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

Quest Solutions
- Construction estimating software for contractors including Quest Estimator, Earthwork, Trenchwork, Roadwork, Takeoff and Cross Sections.
- http://www.questsolutions.com/

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/

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/

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

SketchUp
- A 3D sketching software for the conceptual phases of design.
- http://www.sketchup.com/

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

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

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

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

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

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

Eagle Point Software Corporation
- CAD software for building design and estimating, civil design, hydraulics, landscaping, structural engineering, and surveying.
- http://www.eaglepoint.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/

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

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

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

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

A E C Technologies
- Applications software expertise with cad and multimedia products for key industries.
- http://www.aectech.com/

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

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

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